Boiler House Replacement — Detailed Pricing Breakdown
The fixed tender total of £481,954.33 (excluding VAT) is allocated across nine sections (A through I). Each section corresponds to a discipline or work package per the SDS Doc 23 BoQ structure. The full line-item breakdown is on the Priced BoQ tab below.
| Sec | Description | Section Total (£) |
|---|---|---|
| A | Preliminaries / General Conditions | £51,525.60 |
| B | Surveys and Investigations | £8,298.32 |
| C | Strip-Out, Removal, Demolition | £26,376.53 |
| D | Builders' Work in Connection | £29,596.31 |
| E | Testing, Commissioning, Handover | £27,601.09 |
| F | Mechanical and Public Health Services | £296,990.48 |
| G | Electrical Services | £24,066.00 |
| H | Statutory Notifications and Permits | — |
| I | Provisional Sums (Doc 23 Table 18) | £17,500.00 |
| Σ | FIXED TENDER TOTAL (ex VAT) | £481,954.33 |
All-in unit rates inclusive of labour, materials, plant, profit and overheads. Each section below contains the full priced line items grouped by sub-section. Click any section to expand. Lines marked EXCLUDED are explicitly outside Built AI's scope (e.g., site establishment under Principal Contractor's preliminaries) and have been removed from the priced sum.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A1.1 | Pre-Start Meeting attendance (PM + Site Manager + CM Specialist); issue of programme, milestone schedule, line management diagram, schedule of key personnel, O&M template Per Doc 23 Part A3.1.2 / SoW Annex 1 |
1 | Item | 720.00 | £720.00 |
| A1.2 | Construction Phase Health & Safety Plan (Kettlewick Estates standard format or agreed equivalent) EXCLUDED — Built AI not Principal Contractor on this project |
Item | — | — | |
| A1.3 | Risk Register with financial and time implications per risk Format agreed with Kettlewick Estates PM |
1 | Item | 416.00 | £416.00 |
| A1.4 | Method Statement Review submissions (task-specific RAMS) >=1 wk lead; 20 wk-days for Permit-to-Work RAMS |
1 | LS | 360.00 | £360.00 |
| A1.5 | Sustainability Appraisal (Kettlewick Estates format) Per SoW |
1 | Item | 416.00 | £416.00 |
| A1.6 | Fire Risk Assessment + Fire Prevention Plan Within CPH&SP |
1 | Item | 568.00 | £568.00 |
| A1.7 | CDM 2015 compliance submissions; F10 assessment (if required) EXCLUDED — Built AI not Principal Contractor on this project |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A2.1 | Project Manager (named) EXCLUDED — per Built AI commercial review 24.04.26 |
wks | — | — | |
| A2.2 | Site Manager / Supervisor (named, TWC-appointed) Full-time site-based |
20 | wks | 30.00 | £600.00 |
| A2.3 | Commissioning Management Specialist (named, independent) Incl. Plan + delivery |
6 | wks | 520.00 | £3,120.00 |
| A2.4 | Gas-Safe registered Competent Person ACS-qualified commercial boilers, install, conversion, purge |
1 | LS | 656.00 | £656.00 |
| A2.5 | Electrical Authorised Person / Skilled Person (named, Kettlewick Estates-appointed) Per Kettlewick Estates AP regime |
1 | LS | 328.00 | £328.00 |
| A2.6 | Responsible Person for asbestos (named) CAR 2012 duty-holder |
1 | LS | 416.00 | £416.00 |
| A2.7 | Quality Assurance / QC Manager attendance Document control, inspection, test plans |
1 | LS | 728.00 | £728.00 |
| A2.8 | Technical support (design co-ordination, RFI clearance) Programme duration |
1 | LS | 728.00 | £728.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A3.1 | Site office cabin (heated, lit, IT-ready) EXCLUDED — Built AI not Principal Contractor on this project |
wk | — | — | |
| A3.2 | Welfare cabin (rest room, changing, WC with hand-wash, drying) EXCLUDED — Built AI not Principal Contractor on this project |
wk | — | — | |
| A3.3 | Secure storage container EXCLUDED — Built AI not Principal Contractor on this project |
wk | — | — | |
| A3.4 | HERAS 1.8 m perimeter fencing EXCLUDED — Built AI not Principal Contractor on this project |
LM | — | — | |
| A3.5 | Compound signage - safety, fire, authorised-entry, 15 mph, waste areas EXCLUDED — Built AI not Principal Contractor on this project |
LS | — | — | |
| A3.6 | Site electrical supply connection to accommodation EXCLUDED — Built AI not Principal Contractor on this project |
LS | — | — | |
| A3.7 | Site water and sewer connection EXCLUDED — Built AI not Principal Contractor on this project |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A4.1 | Skip / waste bin hire (general construction waste) EXCLUDED — Built AI not Principal Contractor on this project |
No./mth | — | — | |
| A4.2 | Hazardous waste bulk-bag storage area EXCLUDED — Built AI not Principal Contractor on this project |
LS | — | — | |
| A4.3 | Site broadband / mobile data EXCLUDED — Built AI not Principal Contractor on this project |
wk | — | — | |
| A4.4 | Daily site cleaning EXCLUDED — Built AI not Principal Contractor on this project |
wk | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A5.1 | 110 V tools, battery tools, PAT-tested inventory EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| A5.2 | Portable lighting (100 W LED, 110 V) Plant-room + enclosure work areas |
8 | No. | 109.00 | £872.00 |
| A5.3 | Compact MEWP hire - low-level working Install-phase |
2 | wk | 532.00 | £1,064.00 |
| A5.4 | Mobile tower scaffold hire Install-phase; locked or dismantled overnight |
4 | wk | 344.00 | £1,376.00 |
| A5.5 | Hand tools consumables, fixings, consumable sundries | 1 | LS | 600.00 | £600.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A6.1 | HERAS 1.8 m working-area fencing within plant-room envelope (addl. to A3.4) Weekly inspection record |
40 | LM | 36.80 | £1,472.00 |
| A6.2 | Scaffold to chimney top - NASC-member, TG20-compliant, debris netting CDP - flue specialist / scaffolder |
1 | LS | 5,112.00 | £5,112.00 |
| A6.3 | Mobile crane hire / lifting rig for skylight-route plant lift CDP - Appointed Person, CPCS crew |
1 | LS | 4,248.00 | £4,248.00 |
| A6.4 | Skylight-lift rigging - beams, slings, shackles, chain blocks To lift plan |
1 | LS | 2,008.00 | £2,008.00 |
| A6.5 | Edge protection + fall-arrest at roof level Per Doc 7 Hazard 10 |
1 | LS | 1,584.00 | £1,584.00 |
| A6.6 | Temporary Works designs and Permit submissions to Kettlewick Estates TW Engineer 2-wk approval lead |
1 | LS | 1,072.00 | £1,072.00 |
| A6.7 | Kettlewick Estates Temporary Works Permit issuance | 1 | LS | 104.00 | £104.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A7.1 | Flue system detailed design - twin-wall CE V-band 4-hr FR + welded liner Flue specialist CDP |
1 | LS | 3,208.00 | £3,208.00 |
| A7.2 | Temporary Works designs (HERAS, scaffold, skylight rig, roof edge) CDP |
1 | LS | 1,430.40 | £1,430.40 |
| A7.3 | BMS outstation configuration, field-device selection, actuator selection BMS Specialist CDP |
1 | LS | 1,904.00 | £1,904.00 |
| A7.4 | LV containment final routing and final-circuit termination NICEIC Contractor CDP |
1 | LS | 952.00 | £952.00 |
| A7.5 | Asbestos Method Statement + enclosure configuration (DCU, NPU, 4-stage) EXCLUDED — transferred / re-scoped |
LS | — | — | |
| A7.6 | Condensate neutraliser sizing, routing to gully CDP |
1 | LS | 270.40 | £270.40 |
| A7.7 | BWIC co-ordination drawings + Structural Engineer consultation (Doc 7 Hazard 06) Structural Engineer fee |
1 | LS | 2,576.00 | £2,576.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A8.1 | Working drawings (co-ordinated mechanical, electrical, BWIC) Pre-install issue |
1 | LS | 1,088.00 | £1,088.00 |
| A8.2 | Fabrication drawings / prefabrication offsets | 1 | LS | 447.20 | £447.20 |
| A8.3 | Programme updates (weekly progress) | 14 | wk | 52.00 | £728.00 |
| A8.4 | As-built drawings in AutoCAD DWG + PDF + paper (full-size + A3), 1:50 Per Doc 23 A3.8.4 |
1 | LS | 1,160.00 | £1,160.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| A9.1 | O&M Manual Specialist - BSRIA BG 79/2020 author EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| A9.2 | O&M manual production - digital + 3x hardcopy loose-leaf binders (4-ring PVC, >=100 gsm) Incl. first draft + Kettlewick Estates 2-wk review cycle |
1 | LS | 896.00 | £896.00 |
| A9.3 | Laminated wall-mounted plant-room schematics A1 size laminated + mechanical fixings |
6 | No. | 59.73 | £358.40 |
| A9.4 | Engraved Traffolyte plant tags for BoQ equipment items Brass-fix; size per Doc 23 C1.7.3 |
45 | No. | 19.95 | £897.60 |
| A9.5 | Asset register with serials, warranties, manufacturer data | 1 | LS | 624.00 | £624.00 |
| A9.6 | Part L2 Building Regulations Logbook Per Doc 24 Section 9 |
1 | No. | 270.40 | £270.40 |
| A10.1 | Operator training - pre-PC session Attendance register, content log |
1 | LS | 328.00 | £328.00 |
| A10.2 | Refresher / retraining - 3-month post-PC session | 1 | LS | 166.40 | £166.40 |
| A10.3 | O&M manual search-usage training for Kettlewick Estates operators | 1 | LS | 140.48 | £140.48 |
| A11.1 | 12-month defects-period liability provision Reactive attendance to defects |
12 | mth | 180.00 | £2,160.00 |
| A11.2 | 24-hr acknowledgement / 72-hr attendance standard response As proposed in SoW Section 2.10.4 |
1 | LS | 270.40 | £270.40 |
| A12.1 | Break-fix attendance for defects (provisional) EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| A13.1 | Month-1 walk-through + snag list | 1 | No. | 372.48 | £372.48 |
| A13.2 | Month-3 fine-tuning review | 1 | No. | 372.48 | £372.48 |
| A13.3 | Month-6 mid-point review | 1 | No. | 372.48 | £372.48 |
| A13.4 | Month-12 close-out review | 1 | No. | 476.48 | £476.48 |
| A14.1 | Summer-mode commissioning visit late May-July |
1 | No. | 744.00 | £744.00 |
| A14.2 | Winter-mode commissioning visit Nov-Feb |
1 | No. | 744.00 | £744.00 |
| A15.1 | Option A - 1-yr PPM (2x visits + 24-hr reactive + gas safety + BMS health-check + seasonal re-tune + L8 flush if applicable) Alternative pricing to compliant sum |
1 | yr | — | — |
| A16.1 | Option B - 5-yr PPM (as Option A plus year-3 commissioning re-review + year-5 end-of-life assessment; CPI-indexed yr 2+) Alternative pricing |
5 | yr | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B1.1 | Pre-start measured services survey - mechanical (LTHW, DHW, gas, condensate routes + existing distribution interfaces) By qualified M&E engineer |
3 | days | 476.16 | £1,428.48 |
| B1.2 | Pre-start measured services survey - electrical (sub-main, existing wiring, lighting, FA loop) NICEIC-competent engineer |
2 | days | 476.00 | £952.00 |
| B1.3 | Mark-up of existing services on CAD drawings Issued to Kettlewick Estates + SDS |
1 | LS | 684.48 | £684.48 |
| B1.4 | Photographic survey record Issued to Kettlewick Estates |
1 | LS | 244.48 | £244.48 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B2.1 | Verify space-heating F/R temps (82 / 71 C) - Risk 19 | 1 | LS | 90.00 | £90.00 |
| B2.2 | Verify space-heating flowrate (5.4 kg/s) - Risk 20 | 1 | LS | 122.24 | £122.24 |
| B2.3 | Confirm DHW peak length 30 min assumption - Risk 22 Already agreed w/ Client 20.03.2023 |
1 | LS | 26.00 | £26.00 |
| B2.4 | Verify DHW recirc flowrate (3 kg/s) - Risk 23 | 1 | LS | 116.00 | £116.00 |
| B2.5 | Verify MCWS main capacity and pipe size - Risk 24 | 1 | LS | 78.00 | £78.00 |
| B2.6 | Verify heating system volume (3,676 L) - Risk 25 | 1 | LS | 330.24 | £330.24 |
| B2.7 | Verify DHW system volume (1,136 L) - Risk 26 | 1 | LS | 220.00 | £220.00 |
| B2.8 | Verify sub-main to DB re-use suitability - Risk 27 | 1 | LS | 122.24 | £122.24 |
| B2.9 | Verify existing wiring re-use suitability - Risk 28 | 1 | LS | 122.24 | £122.24 |
| B2.10 | Verify existing lighting re-use suitability - Risk 29 | 1 | LS | 52.00 | £52.00 |
| B2.11 | Verify existing fire alarm re-use suitability - Risk 30 | 1 | LS | 122.24 | £122.24 |
| B2.12 | Verification report issued to Contract Administrator Pre-procurement sign-off gate |
1 | LS | 342.24 | £342.24 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B3.1 | 7-day mains pressure recording at plant-room adjacent point of demand Method Statement to Contract Administrator |
1 | LS | 588.48 | £588.48 |
| B3.2 | Alternative - written confirmation from water supply company (If preferred over on-site log) |
1 | LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B4.1 | Pre-decommissioning nameplate record of existing plant (5x Wessex, 2x DHW, 2x buffer, MCP, pumps) Per Doc 5 Section 4.2.3 Contractor obligation |
1 | LS | 464.00 | £464.00 |
| B4.2 | Existing plant duty / flow / temperature measurement where practicable | 1 | LS | 476.48 | £476.48 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B5.1 | Existing sub-main testing (IR, earth-loop, continuity, trip time) NICEIC Minor Works cert |
1 | LS | 408.00 | £408.00 |
| B5.2 | Existing wiring (Ways 1-2 retained) testing | 1 | LS | 244.48 | £244.48 |
| B5.3 | Existing lighting functional + emergency lighting (BS 5266-1) test | 1 | LS | 180.00 | £180.00 |
| B5.4 | Existing fire alarm panel, zones, detectors, sounders functional test | 1 | LS | 408.00 | £408.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B6.1 | Management-survey refresh of 3x Socotec areas EXCLUDED — transferred / re-scoped |
LS | — | — | |
| B6.2 | Sampling of presumed rope-gasket P001 (4 items, Plant Room live electrics) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| B6.3 | Sampling of presumed rope-gasket P002 (18 items, Plant Room live plumbing) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| B6.4 | Sampling of presumed rope-gasket P003 (2 items, Workshop live electrics) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| B6.5 | Sampling report and ACM classification EXCLUDED — transferred / re-scoped |
LS | — | — | |
| B6.6 | 14-day HSE Notification of Work with Asbestos EXCLUDED — transferred / re-scoped |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| B7.1 | Photographic + marked-up-drawing dilapidation survey - Plant Room, Lobby, Workshop, chimney external, roof route, gate-to-plant route Per SoW / Doc 23 A1.3 |
1 | LS | 476.00 | £476.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C1.1 | Gas isolation + purge by Gas-Safe competent person (existing boilers + DHW generators) | 1 | LS | 328.00 | £328.00 |
| C1.2 | Electrical isolation, lock-off + test-dead on existing final circuits Kettlewick Estates AP permit regime |
1 | LS | 372.48 | £372.48 |
| C1.3 | Drain-down of existing LTHW + DHW systems; cap at distribution interface | 1 | LS | 1,072.00 | £1,072.00 |
| C1.4 | Decommissioning of existing roof water storage tanks | 1 | LS | 720.00 | £720.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C2.1 | Disconnect, break down, remove boiler No. 1 50 kW Wessex - out of service |
1 | No. | 777.60 | £777.60 |
| C2.2 | Disconnect, break down, remove boiler No. 2 | 1 | No. | 777.60 | £777.60 |
| C2.3 | Disconnect, break down, remove boiler No. 3 | 1 | No. | 777.60 | £777.60 |
| C2.4 | Disconnect, break down, remove boiler No. 4 | 1 | No. | 777.60 | £777.60 |
| C2.5 | Disconnect, break down, remove boiler No. 5 | 1 | No. | 777.60 | £777.60 |
| C2.6 | Segregate ferrous scrap for recycling with refund-value audit EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C3.1 | Remove Hamworthy DR-LP 60 G (351 L, 72.9 kW) | 1 | No. | 1,028.51 | £1,028.51 |
| C3.2 | Remove Hamworthy DR-LA 95 G (265 L, 111.8 kW) | 1 | No. | 1,028.51 | £1,028.51 |
| C3.3 | Remove 2x Nalco buffer vessels Volume tbc at pre-strip survey |
2 | No. | 760.32 | £1,520.64 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C4.1 | Strip-out all existing plant-room LTHW pipework Up to retained-distribution interface |
1 | LS | 3,300.00 | £3,300.00 |
| C4.2 | Strip-out all existing plant-room DHW pipework Up to retained-distribution interface |
1 | LS | 1,992.00 | £1,992.00 |
| C4.3 | Strip-out all existing valves, pumps, flexible connectors, pipeline ancillaries | 1 | LS | 1,338.24 | £1,338.24 |
| C4.4 | Cap existing retained distribution interfaces pressure-retentively For asbestos-campaign duration |
1 | LS | 596.00 | £596.00 |
| C4.5 | Remove existing redundant insulation (ACM treated under Section C7) EXCLUDED — transferred / re-scoped |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C5.1 | Remove existing MCP (Satchwell-era, Doc 5 Fig. 5) | 1 | No. | 928.00 | £928.00 |
| C5.2 | Disconnect + remove existing Satchwell field devices being replaced Retain cable where feasible per Risk 28 |
1 | LS | 892.48 | £892.48 |
| C5.3 | Disconnect + remove existing mechanical-plant final circuits from retained DB | 1 | LS | 892.48 | £892.48 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C6.1 | Drain + disconnect existing cold-water storage tanks at roof level | 1 | LS | 512.00 | £512.00 |
| C6.2 | Cut-down / craneable-section removal of storage tanks Access via MEWP / hoist / skylight |
1 | LS | 1,548.48 | £1,548.48 |
| C6.3 | Remove redundant pipework tanks-to-plant-room | 1 | LS | 976.00 | £976.00 |
| C6.4 | Make-good roof penetrations, weather-seal | 1 | LS | 840.00 | £840.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C7.1 | Licensed enclosure set-up (Type 5) covering Plant Room + Lobby + Workshop combined - DCU, NPU, HEPA stacks, airlocks, lighting EXCLUDED — transferred / re-scoped |
LS | — | — | |
| C7.2 | Controlled removal of Plant Room wall residue (samples 006/007/009/010/011) EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| C7.3 | Controlled removal of Plant Room ceiling residue (sample 008) EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| C7.4 | Controlled removal of Lobby wall residue (samples 003/004/005) EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| C7.5 | Controlled removal of Workshop wall residue (samples 020/021) EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| C7.6 | Controlled removal of Plant Room floor dust/debris (sample 017) EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| C7.7 | Needle-gun residual thermal insulation to brick substrate EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| C7.8 | Controlled clean-down of broader plant-room substrate within enclosure EXCLUDED — transferred / re-scoped |
m2 | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C8.1 | Removal of gaskets to valves (sample 012) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C8.2 | Removal of gaskets to pipework (sample 014) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C8.3 | Removal of gasket debris to floor (sample 015) EXCLUDED — transferred / re-scoped |
No. | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| C9.1 | Rope gasket P001 - Plant Room (4 items, live electrics) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C9.2 | Rope gasket P002 - Plant Room valve mechanism (18 items, live plumbing) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C9.3 | Rope gasket P003 - Workshop switchgear (2 items, live electrics) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C10.1 | Enclosure erect + first commissioning smoke-test EXCLUDED — transferred / re-scoped |
LS | — | — | |
| C10.2 | Air monitoring by UKAS analyst (campaign duration) EXCLUDED — transferred / re-scoped |
days | — | — | |
| C10.3 | Enclosure strike + final clean-down EXCLUDED — transferred / re-scoped |
LS | — | — | |
| C11.1 | 4-stage clearance - Plant Room EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C11.2 | 4-stage clearance - Lobby EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C11.3 | 4-stage clearance - Workshop EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C11.4 | Certificate of Reoccupation issued EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C12.1 | Low-percussion break-out of redundant plinth sections Nominal - post asbestos clearance |
6 | m3 | 248.00 | £1,488.00 |
| C12.2 | Disposal of concrete arisings via skips Clean C&D waste |
6 | m3 | 77.04 | £462.24 |
| C13.1 | Hazardous Waste Consignment Notes + collection via EMS Waste Services EXCLUDED — transferred / re-scoped |
LS | — | — | |
| C13.2 | Hazardous waste bulk-bags (double-bagged asbestos waste) EXCLUDED — transferred / re-scoped |
No. | — | — | |
| C13.3 | Waste Transfer Notes for general waste streams | 1 | LS | 268.48 | £268.48 |
| C13.4 | WEMP (Waste Effluent Management Plan) for chemical discharges | 1 | LS | 384.00 | £384.00 |
| C14.1 | Scrap metal weight records + refund-value audit per SUA20 EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D1.1 | Form new penetrations through walls, floors, ceilings - plant pipework, flue, containment, condensate drain, electrical Sizes per co-ordination drawings; Structural Engineer sign-off (Doc 7 Hazard 06) |
1 | LS | 2,142.72 | £2,142.72 |
| D1.2 | Make-good to existing finishes around penetrations | 1 | LS | 1,071.36 | £1,071.36 |
| D1.3 | Weatherproof external penetrations (flue + condensate discharge if external + booster-set drainage) | 1 | LS | 815.39 | £815.39 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D2.1 | Specialist fire-stopping contractor - supply and install proprietary systems (Hilti or equal) BM TRADA / PFPF accredited |
1 | LS | 2,688.00 | £2,688.00 |
| D2.2 | Fire-stopping to pipework penetrations (primary / secondary LTHW, DHW, gas) Nominal - each penetration >=30 min FR |
30 | No. | 43.87 | £1,316.00 |
| D2.3 | Fire-stopping to electrical containment penetrations Nominal |
12 | No. | 47.33 | £568.00 |
| D2.4 | Fire-stopping to flue penetration through roof / chimney base 4-hr FR system to match flue |
1 | LS | 956.48 | £956.48 |
| D2.5 | Fire-stopping certificates, photographic records, as-fitted drawings For H&S File |
1 | LS | 408.00 | £408.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D3.1 | Careful removal of existing glazed metal-framed skylight (~2 x 4 m) With agreed lifting aid |
1 | No. | 1,176.00 | £1,176.00 |
| D3.2 | Weatherproofed temporary storage within site compound Full programme duration |
20 | wk | 66.22 | £1,324.48 |
| D3.3 | Protection of stored glass and frame | 1 | LS | 304.00 | £304.00 |
| D3.4 | Reinstatement of existing skylight frame + glass New sealant bed, mechanical fixings |
1 | No. | 1,548.48 | £1,548.48 |
| D3.5 | Weatherproof test on reinstated skylight | 1 | LS | 216.48 | £216.48 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D4.1 | Carefully remove loose bricks at chimney top (Rev 02 addition to SoW) |
1 | LS | 464.00 | £464.00 |
| D4.2 | Reset removed bricks in lime-based / cement-lime mortar to match existing Listed-building-compliant mortar mix |
1 | LS | 596.48 | £596.48 |
| D4.3 | Replacement bricks to match existing (where unsalvageable) Nominal - actual as required |
20 | No. | 9.60 | £192.00 |
| D4.4 | Re-point existing chimney top to match existing joint profile Nominal working area |
8 | m2 | 96.48 | £771.84 |
| D4.5 | Listed-building / Conservation Officer liaison support (Client-led consent) No design submission in scope |
1 | LS | 476.48 | £476.48 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D5.1 | New reinforced-concrete plinth for IDEAL cascade frame Size per IDEAL drawing + Structural Engineer |
1 | No. | 858.24 | £858.24 |
| D5.2 | New reinforced-concrete plinth for 3x thermal store steel frame Sized for 7,650 kg full-water load + FoS |
1 | No. | 1,330.56 | £1,330.56 |
| D5.3 | New reinforced-concrete plinth for PHE 1.1 (Stokvis heating skid) Per Stokvis skid footprint |
1 | No. | 771.84 | £771.84 |
| D5.4 | New reinforced-concrete plinth for PHE 2.1 + 2.2 (Stokvis DHW skids) Per Stokvis skid footprint |
2 | No. | 622.08 | £1,244.16 |
| D5.5 | New reinforced-concrete plinth for BTBS/B1/1 (Arrow Valves) Wall-adjacent plinth if required |
1 | No. | 403.20 | £403.20 |
| D5.6 | Partial modification / cutting of existing retained plinths Post asbestos clearance |
1 | LS | 728.99 | £728.99 |
| D5.7 | Structural Engineer review / sign-off on plinth loading and fixings EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D6.1 | Identify, isolate, drain + divert piped services in skylight lift zone (enabling works) Co-ordinated with isolations |
1 | LS | 905.98 | £905.98 |
| D6.2 | Temporary diversion pipework + valves to maintain live services | 1 | LS | 1,049.60 | £1,049.60 |
| D6.3 | Pressure-test + reinstate after plant lift | 1 | LS | 809.98 | £809.98 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D7.1 | Form sump pit in plant-room floor for P/B1/4.1 Size per Grundfos AP50 + Doc 8 Ø32 SVP interface |
1 | No. | 1,132.48 | £1,132.48 |
| D7.2 | Hinged galvanised grating cover Removable for maintenance |
1 | No. | 320.00 | £320.00 |
| D7.3 | Sump pit render + waterproof lining | 1 | LS | 304.00 | £304.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D8.1 | Preparation - remove loose paint, fill cracks/holes with proprietary filler, smooth finish EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| D8.2 | Protection of adjacent surfaces, light fittings, sensors, new plant EXCLUDED — transferred / re-scoped |
LS | — | — | |
| D8.3 | Mist coat to bare / prepared surfaces EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| D8.4 | 2x coats white matt emulsion (robust grade) EXCLUDED — transferred / re-scoped |
m2 | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| D9.1 | Preparation - remove loose paint, fill, smooth EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| D9.2 | Protection of electrical cover plates, switchgear, plant tags EXCLUDED — transferred / re-scoped |
LS | — | — | |
| D9.3 | Mist coat to bare surfaces EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| D9.4 | 2x coats white matt emulsion (robust grade) EXCLUDED — transferred / re-scoped |
m2 | — | — | |
| D10.1 | Knot, prime, 2 undercoats + 1 finish gloss on all bare wood EXCLUDED — transferred / re-scoped |
LM | — | — | |
| D10.2 | Make-good to damaged skirtings and architraves EXCLUDED — transferred / re-scoped |
LS | — | — | |
| D10.3 | Colour match to existing decor (agreed at pre-start) EXCLUDED — transferred / re-scoped |
LS | — | — | |
| D11.1 | Protection boards / flooring protection during decoration + commissioning Maintained for full duration |
1 | LS | 632.00 | £632.00 |
| D11.2 | Protection removal + final clean | 1 | LS | 464.00 | £464.00 |
| D12.1 | Remove + set aside signage, noticeboards, blinds, fittings pre-decoration | 1 | LS | 292.80 | £292.80 |
| D12.2 | Remove ironmongery from doors and fittings, reinstate post-paint cure | 1 | LS | 139.20 | £139.20 |
| D12.3 | Reinstate all signage, noticeboards, fittings on completion | 1 | LS | 278.40 | £278.40 |
| D12.4 | Supply + fix 'Wet Paint' signs around painted areas during cure | 1 | LS | 53.09 | £53.09 |
| D13.1 | Full plant-room final clean ready for re-occupation | 1 | LS | 585.60 | £585.60 |
| D13.2 | Common-route final clean | 1 | LS | 256.00 | £256.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E1.1 | Commissioning Management Plan (CIBSE Code M) - prepare + issue to Kettlewick Estates / CA >=4 wks before commissioning |
1 | LS | 571.20 | £571.20 |
| E1.2 | Commissioning Management Specialist (named, independent where practicable) Incl. management + sign-off |
6 | wks | — | — |
| E1.3 | Commissioning records, witness pack, sign-off log | 1 | LS | 571.20 | £571.20 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E2.1 | Factory witnessed test - IDEAL works EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E2.2 | Factory test report + sign-off EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E3.1 | Factory witnessed test - PHE 1.1 (250 kW heating) EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E3.2 | Factory witnessed test - PHE 2.1 (700 kW DHW) EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E3.3 | Factory witnessed test - PHE 2.2 (700 kW DHW) EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E3.4 | Factory test reports EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E4.1 | Factory witnessed test - PU/B1/1 (primary) EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E4.2 | Factory witnessed test - PU/B1/2 (secondary) EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E5.1 | Factory witnessed test - BTBS/B1/1 EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E6.1 | LTHW primary loop pressure test (1.5x working, 2 hr hold, BS 7593) | 1 | LS | 571.20 | £571.20 |
| E6.2 | LTHW secondary loop pressure test | 1 | LS | 571.20 | £571.20 |
| E6.3 | DHW primary / secondary pressure test | 1 | LS | 307.20 | £307.20 |
| E6.4 | BCWS pressure test | 1 | LS | 161.09 | £161.09 |
| E6.5 | Pressure test certificates For O&M |
1 | LS | 153.60 | £153.60 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E7.1 | Gas pipework strength / tightness test per IGEM/UP/1A Gas-Safe registered |
1 | LS | 357.89 | £357.89 |
| E7.2 | Gas purge per IGEM/UP/1 | 1 | LS | 268.80 | £268.80 |
| E7.3 | Gas Safe certificates + record | 1 | LS | 98.69 | £98.69 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E8.1 | Flushing and cleaning of closed-circuit LTHW primary (BSRIA BG 29) Volume ~9,750 L |
1 | LS | 3,355.20 | £3,355.20 |
| E8.2 | Flushing and cleaning of closed-circuit LTHW secondary Volume ~3,676 L |
1 | LS | 1,713.60 | £1,713.60 |
| E8.3 | Flushing and cleaning of DHW / DHW recirc Volume ~1,136 L |
1 | LS | 643.20 | £643.20 |
| E8.4 | Pre-clean chemical dose, dynamic flush, chemical flush, freshwater rinse | 1 | LS | 787.20 | £787.20 |
| E8.5 | pH, conductivity, iron count sampling + report | 1 | LS | 331.20 | £331.20 |
| E8.6 | Temporary flushing pumps, hoses, filters, sampling kit | 1 | LS | 700.80 | £700.80 |
| E8.7 | Disposal of flushing effluent via WEMP | 1 | LS | 412.80 | £412.80 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| E9.1 | Primary LTHW inhibitor + biocide first-fill (Sentinel X100 / X500 or equal) | 9750 | L treated | 0.19 | £1,851.85 |
| E9.2 | Secondary LTHW inhibitor + biocide first-fill | 3676 | L treated | 0.20 | £741.83 |
| E9.3 | Sampling on completion + retained sample | 1 | LS | 193.20 | £193.20 |
| E9.4 | 18 L dosing vessel charges (2x PU, top-up inhibitor) | 2 | No. | 112.00 | £224.00 |
| E10.1 | Visual inspection, insulation integrity, electrical bonding | 1 | LS | 632.80 | £632.80 |
| E10.2 | Safety valve setting verification (3x boiler SVs, 3x TS PRVs, 2x PU safeties) | 1 | LS | 375.20 | £375.20 |
| E10.3 | Gas-leak detection (soap-test + electronic sniffer on commissioning) | 1 | LS | 212.80 | £212.80 |
| E11.1 | Pump commissioning at design flow/pressure (4x Contractor pumps + 3x shunt within cascade kit) | 1 | LS | 666.40 | £666.40 |
| E11.2 | Boiler firing sequence, cascade switching, modulation tests | 1 | LS | 333.20 | £333.20 |
| E11.3 | PHE duty verification at design conditions 3x PHE |
1 | LS | 354.37 | £354.37 |
| E11.4 | Thermal store charging rate and stratification performance | 1 | LS | 333.20 | £333.20 |
| E11.5 | Pressurisation fill + alarm trip verification 2x PU |
1 | LS | 179.20 | £179.20 |
| E11.6 | BTBS delivered-pressure + flow performance test | 1 | LS | 98.00 | £98.00 |
| E11.7 | Condensate discharge flow test | 1 | LS | 53.20 | £53.20 |
| E11.8 | DHW delivery temperature and flow verification at peak | 1 | LS | 354.37 | £354.37 |
| E12.1 | Hydraulic balancing via 6x FODRV (CS/B1/2.1-2.3, 3.1-3.3) +/-5% flow accuracy |
6 | No. | 111.07 | £666.40 |
| E12.2 | Flow verification via 5x MS (MS/B1/1.1-1.5) | 5 | No. | 53.70 | £268.48 |
| E12.3 | 3-port mixing valve authority verification + field DP measurement CV/B1/01, CV/B1/02 |
2 | No. | 152.00 | £304.00 |
| E12.4 | Full commissioning certificate (flows, pressures, Kv settings, DP) | 1 | LS | 179.20 | £179.20 |
| E13.1 | IDEAL commissioning agent site attendance Per Doc 12 Note 7 |
3 | days | 481.60 | £1,444.80 |
| E13.2 | Combustion analysis, efficiency verification One per boiler |
3 | No. | 128.00 | £384.00 |
| E13.3 | Detailed commissioning report To manufacturer's requirements |
1 | LS | 179.20 | £179.20 |
| E14.1 | Stokvis commissioning agent site attendance | 3 | days | 565.20 | £1,695.60 |
| E14.2 | PHE duty / flow / temperature verification reports One per PHE |
3 | No. | 104.40 | £313.20 |
| E15.1 | Flamco commissioning - PU/B1/1 | 1 | No. | 457.20 | £457.20 |
| E15.2 | Flamco commissioning - PU/B1/2 | 1 | No. | 388.48 | £388.48 |
| E16.1 | Arrow Valves commissioning - BTBS/B1/1 0.5 day typical |
1 | No. | 568.00 | £568.00 |
| E17.1 | 100% P-to-P of 54 BMS points (32 AI + 3 AO + 14 DI + 5 DO) | 54 | No. | 21.80 | £1,177.20 |
| E17.2 | Cause-and-effect verification (PU -> boiler interlock; Gas Panel -> SV + E-stop) | 1 | LS | 417.60 | £417.60 |
| E17.3 | BMS head-end graphics review + sign-off | 1 | LS | 214.42 | £214.42 |
| E17.4 | BMS commissioning records for O&M | 1 | LS | 172.80 | £172.80 |
| E18.1 | Weather-compensation curve setup and calibration Per Doc 5 Section 4.1.6 |
1 | LS | 214.42 | £214.42 |
| E18.2 | External temperature sensor calibration | 1 | LS | 68.40 | £68.40 |
| E18.3 | Trend-based fine-tune (first 2 weeks operation) | 1 | LS | 308.02 | £308.02 |
| E19.1 | Boiler seasonal efficiency verification (IDEAL agent, combustion analysis) EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E19.2 | PHE heat-transfer rate verification at design F/R + flow EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E19.3 | DHW delivery >=60 C at 3.60 l/s peak - functional test EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E19.4 | Thermal store charge/discharge cycle logging EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E19.5 | BTBS performance at design 3.08 l/s / 1.0 bar EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E19.6 | Performance verification report EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E20.1 | Reactive attendance for recorded operational issues (month 1-3) EXCLUDED — per Built AI commercial review 24.04.26 |
LS | — | — | |
| E20.2 | Weekly BMS trend review during month 1 EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E20.3 | Setpoint fine-tune sessions during months 1-3 EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — | |
| E20.4 | Aftercare reports to Kettlewick Estates PM EXCLUDED — per Built AI commercial review 24.04.26 |
No. | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F1.1 | Continuation of temporary boiler hire for programme duration EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
wks | — | — | |
| F1.2 | Ongoing maintenance of temporary boilers - routine servicing to manufacturer's schedule EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
No. | — | — | |
| F1.3 | Ongoing maintenance - reactive attendance (provisional) EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
LS | — | — | |
| F1.4 | Fuel supply for temporary boilers (oil / LPG) EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
wks | — | — | |
| F1.5 | Gas-safety periodic check on temp boilers EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
No. | — | — | |
| F1.6 | Temporary boiler tie-in maintenance + cut-over sequencing EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
LS | — | — | |
| F1.7 | Temporary boiler removal + decommissioning at end of works EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
LS | — | — | |
| F1.8 | Temporary boiler connection pipework - capped / left for future use EXCLUDED — Grimshaw & Bolt providing temp boiler package (confirmed by Jamie, GB) |
LS | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F2.1 | Boiler condensate pump + integral neutraliser (serving 3x boilers) SaniCondens / Grundfos Conlift / equal; acid neutralisation, pumped discharge |
1 | No. | 1,136.00 | £1,136.00 |
| F2.2 | Condensate pipework - Ø32 mm SVP below floor Routing to existing foul drainage |
12 | LM | 41.00 | £492.00 |
| F2.3 | Condensate pipework - Ø22 mm boiler branch connections 3x boilers |
6 | LM | 38.00 | £228.00 |
| F2.4 | Tundishes at boiler condensate outlets Visual inspection capability |
3 | No. | 76.67 | £230.00 |
| F2.5 | Tundishes at thermal store PRV discharges (DN25) Per Doc 14 |
3 | No. | 76.67 | £230.00 |
| F2.6 | Tundishes at boiler safety valve discharges (DN25) Per Doc 12 Note 6 |
3 | No. | 76.67 | £230.00 |
| F2.7 | Common safe-discharge pipework to plant-room gully | 10 | LM | 32.80 | £328.00 |
| F2.8 | Neutraliser chemical first-fill | 1 | LS | 132.00 | £132.00 |
| F2.9 | Sump pump P/B1/4.1 - Grundfos AP50, DN50, submersible, 0-60 C Per Doc 15; 230 V/1 ph/50 Hz, 1,500 W, 6.5 A |
1 | No. | 912.00 | £912.00 |
| F2.10 | Sump pump discharge pipework + NRV | 1 | LS | 256.00 | £256.00 |
| F2.11 | Sump pump BMS remote start/stop + common fault DI 14 per Doc 21 |
1 | LS | 144.00 | £144.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F3.1 | New low-pressure gas governor 62 -> 21 mbar Sized for 48.6 m3/h total boiler demand |
1 | No. | 808.00 | £808.00 |
| F3.2 | Governor bypass + isolation arrangement | 1 | LS | 458.00 | £458.00 |
| F3.3 | Gas Safety Control Panel (GP) - packaged, wall-mounted Solenoid valve + THL + CO + NG sensors + FA interface + E-stop |
1 | No. | 3,712.00 | £3,712.00 |
| F3.4 | GP installation + commissioning by gas-safety panel specialist | 1 | LS | 516.00 | £516.00 |
| F3.5 | Gas pipework - Ø65 mm internal distribution header (carbon steel to BS EN 10255) Nominal - verify at co-ordination |
15 | LM | 77.60 | £1,164.00 |
| F3.6 | Gas pipework - Ø20 mm boiler branch connections 3x boilers per Doc 12 |
6 | LM | 49.67 | £298.00 |
| F3.7 | Gas cocks (BS EN 331 brass ball, CE/EN13611) DN20 at boilers | 3 | No. | 59.33 | £178.00 |
| F3.8 | Gas isolation valves DN25 / DN50 / DN65 as required Nominal take-off |
6 | No. | 128.66 | £771.96 |
| F3.9 | Purge valve on new gas distribution Per Doc 8 Note 8 |
1 | No. | 74.00 | £74.00 |
| F3.10 | Pressure test points / gauges on gas pipework | 3 | No. | 30.56 | £91.69 |
| F3.11 | Gas meter G1 - ultrasonic, Ø65 mm, MID-approved, pulse output Per Doc 22; MWA Technology / DMS / equal; 48.6 m3/h |
1 | No. | 1,956.00 | £1,956.00 |
| F3.12 | Gas meter supplier validation site visit Per Doc 22 Note 3.3 |
1 | LS | 508.00 | £508.00 |
| F3.13 | Flue system - twin-wall stainless steel CE V-band 4-hr fire-rated common inclined header Flue Specialist CDP; EN 1856-1/2 |
1 | LS | 15,328.00 | £15,328.00 |
| F3.14 | Flue - non-return valves (one per boiler on flue takeoff) | 3 | No. | 244.00 | £732.00 |
| F3.15 | Flue - clean-out door on common header | 1 | No. | 339.00 | £339.00 |
| F3.16 | Flue - drain point on common header | 1 | No. | 142.00 | £142.00 |
| F3.17 | Flue - welded flexible stainless-steel liner, full height of chimney Nominal - flue specialist to verify |
25 | LM | 261.56 | £6,539.00 |
| F3.18 | Flue - mesh-guard terminal | 1 | No. | 583.00 | £583.00 |
| F3.19 | Flue adaptors, elbows, closure plates, test points | 1 | LS | 1,162.00 | £1,162.00 |
| F3.20 | Flue specialist - detailed design + installation + commissioning CDP per BS 6644, IGEM/UP/10, KE TS2022-02 |
1 | LS | 1,016.00 | £1,016.00 |
| F3.21 | Chimney top works co-ordination with flue liner install Sequenced with D4 |
1 | LS | 516.00 | £516.00 |
| F3.22 | Flue integrity test + draught test on completion | 1 | LS | 358.00 | £358.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.1 | PHE PHX/B1/2.1 - Stokvis Econoplate packaged DHW PHE skid, 700 kW Per Doc 13; incl. inverter pumps, SS manifolds, SS frame, insulation jacket, spare plate/tube, WRAS, BS EN 16297 EEI |
1 | No. | 23,664.00 | £23,664.00 |
| F4.2 | PHE PHX/B1/2.2 - Stokvis Econoplate packaged DHW PHE skid, 700 kW Duty/assist with PHX/B1/2.1 - per Doc 21 |
1 | No. | 23,664.00 | £23,664.00 |
| F4.3 | PHE installation, flanged connection (DN50 PN10), BS EN 10226 compliant | 2 | No. | 932.00 | £1,864.00 |
| F4.4 | PHE electrical hook-up (Way 7 3-ph; Way 8 SP+N) | 2 | LS | 228.00 | £456.00 |
| F4.5 | Spare plate + tube assembly supply (per Doc 13 Note 5) 1 per DHW PHE skid |
2 | No. | 2,000.00 | £4,000.00 |
| F4.6 | Break Tank Booster Set BTBS/B1/1 - Arrow Valves Boost-A-Break (BTAB) Per Doc 16; 100 L Cat 5 air gap, 3.08 l/s / 1.0 bar, 40 mm supply, WRAS |
1 | No. | 9,832.00 | £9,832.00 |
| F4.7 | BTBS 40 mm inlet reducer (Ø54 MCWS -> 40 mm) | 1 | No. | 88.00 | £88.00 |
| F4.8 | BTBS drip-tray discharge pipework to plant-room gully (50 mm) | 6 | LM | 29.33 | £176.00 |
| F4.9 | BTBS electrical hook-up (Way 6 L3 16 A SP+N; isolator 20 A) | 1 | LS | 248.00 | £248.00 |
| F4.10 | BTBS BMS fault + pump trip DI wiring | 1 | LS | 134.00 | £134.00 |
| F4.11 | Pump P/B1/3.1 - Grundfos MAGNA1 DN50 bronze WRAS canned-motor Per Doc 15; 3.10 l/s / 104 kPa / 55 C Cat 2 |
1 | No. | 1,992.00 | £1,992.00 |
| F4.12 | P/B1/3.1 - DN15 drain valve on suction + NRV on discharge Per Doc 15 Notes |
1 | LS | 164.00 | £164.00 |
| F4.13 | P/B1/3.1 BMS interface (DI 06 + DO 05) | 1 | LS | 134.00 | £134.00 |
| F4.14 | DHW pipework - Ø67 mm DHW F (copper to BS EN 1057) Interface to existing distribution |
15 | LM | 86.60 | £1,299.00 |
| F4.15 | DHW pipework - Ø54 mm DHW F + Ø54 mm DHW R (copper) Recirc + branches |
40 | LM | 61.20 | £2,448.00 |
| F4.16 | DHW pipework - Ø35 mm DHW R branch (copper) | 8 | LM | 42.00 | £336.00 |
| F4.17 | BCWS pipework - Ø54 mm (copper, WRAS) From BTBS outlet to PHE secondary cold inlet |
12 | LM | 82.00 | £984.00 |
| F4.18 | MCWS pipework - Ø54 mm (copper, WRAS) To BTBS inlet |
10 | LM | 92.40 | £924.00 |
| F4.19 | BCWS / MCWS branch pipework - Ø15 mm (copper) 2x branches |
12 | LM | 24.33 | £292.00 |
| F4.20 | DHW / BCWS isolation valves - ball, DZR, WRAS DN15 Crane / Hattersley / Peglar / equal per Doc 20 |
8 | No. | 27.03 | £216.24 |
| F4.21 | DHW / BCWS isolation valves - ball, DZR, WRAS DN20 / DN25 | 8 | No. | 47.50 | £380.00 |
| F4.22 | DHW / BCWS isolation valves - gate, DZR, WRAS DN32-DN50 | 6 | No. | 94.00 | £564.00 |
| F4.23 | DHW / BCWS isolation valves - butterfly DZR WRAS DN65 | 4 | No. | 132.18 | £528.72 |
| F4.24 | DHW / BCWS non-return valves - single/wafer/swing DN20-DN65 Per Doc 20 |
6 | No. | 76.00 | £456.00 |
| F4.25 | DHW / BCWS double check valves On pressurisation / break tank fill |
2 | No. | 100.52 | £201.04 |
| F4.26 | DHW / BCWS Y-type strainers DZR, WRAS |
4 | No. | 132.33 | £529.32 |
| F4.27 | DHW / BCWS drain cocks (hose union DC DN15) | 8 | No. | 15.99 | £127.92 |
| F4.28 | DHW / BCWS automatic air vents at high points | 6 | No. | 31.11 | £186.68 |
| F4.29 | Water meter W1 - Ø54 mm ultrasonic WRAS MID Mbus Per Doc 22; MWA / DMS / equal |
1 | No. | 1,296.00 | £1,296.00 |
| F4.30 | Water meter validation visit + calibration certificate | 1 | LS | 408.00 | £408.00 |
| F4.31 | 10D upstream / 2D downstream straight-length provision at meter and commissioning points Per Doc 8 Note 17 |
1 | LS | 154.00 | £154.00 |
| F4.32 | DHW pipework identification + labelling (BS 1710) | 1 | LS | 288.00 | £288.00 |
| F4.33 | Interface tie-in to existing DHW F / DHW R at high level - verification + adaptation Sizes to be verified per Doc 8 Note 10 |
1 | LS | 1,132.00 | £1,132.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F5.1 | IDEAL EVO Max 2 cascade kit - 3x 150 kW boilers, floor-standing frame, cascade F/R headers, gas train, prefab insulation Per Doc 12; duty/assist; 96.7% gross Part L2; NR60; 5:1 modulation |
1 | LS | 32,289.46 | £32,289.46 |
| F5.2 | IDEAL boiler cascade - 3x boiler shunt pumps (MAGNA3 - supplied within cascade kit) (Included in F5.1) |
- | — | — | |
| F5.3 | Boiler safety valves - BS 6759, DN25, 3 No. (one per boiler flow, no isolation) Discharge to safe visible location |
3 | No. | 130.67 | £392.00 |
| F5.4 | Boiler interconnecting pipework - header to boiler (flow, return, gas) - Contractor supply Not in cascade kit per Doc 12 Notes |
1 | LS | 3,936.00 | £3,936.00 |
| F5.5 | Boiler interconnecting ancillaries (commissioning valves, NRVs, strainers, gas cocks) Per Doc 10 schematic |
1 | LS | 1,552.00 | £1,552.00 |
| F5.6 | Thermal store TS/B1/1.1 - 2,000 L vertical carbon steel PD 5500 Cat 3, baffle, diffuser, 85 C, 3 bar(g), DN80, 4x T pockets Per Doc 14; Flamco/Rycroft/Fab Products; 1200 x 2270; 550/2550 kg |
1 | No. | 5,518.00 | £5,518.00 |
| F5.7 | Thermal store TS/B1/1.2 - as F5.6 | 1 | No. | 5,518.00 | £5,518.00 |
| F5.8 | Thermal store TS/B1/1.3 - as F5.6 | 1 | No. | 5,518.00 | £5,518.00 |
| F5.9 | Thermal store steel support frame (3 vessels vertical side-by-side) Structural Engineer sign-off |
1 | No. | 4,664.00 | £4,664.00 |
| F5.10 | Thermal store insulation jacket + cladding to <300 W loss per vessel Mineral wool + foil-faced, ~80 mm |
3 | No. | 1,298.67 | £3,896.00 |
| F5.11 | Thermal store PRV discharge pipework (DN25 to tundish to gully) | 3 | LS | 164.16 | £492.48 |
| F5.12 | Thermal store temperature sensors - 4x PT1000 per vessel in pockets Linked to BMS AI 03-14 (see F6) |
12 | No. | 71.33 | £856.00 |
| F5.13 | PHE PHX/B1/1.1 - Stokvis Econoplate packaged heating PHE skid, 250 kW Per Doc 13; inverter pumps, SS frame, DN40 PN10, packaged panel, insulation jacket, spare plate/tube |
1 | No. | 13,664.00 | £13,664.00 |
| F5.14 | PHE PHX/B1/1.1 electrical hook-up (Way 8 L1 SP+N 10 A 2.5 mm2) | 1 | LS | 216.48 | £216.48 |
| F5.15 | Spare plate + tube assembly for PHX/B1/1.1 Per Doc 13 Note 5 |
1 | No. | 1,200.00 | £1,200.00 |
| F5.16 | Pump P/B1/2.1 & 2.2 - Grundfos MAGNA3 D twin-head DN80 PN10 duty/standby Per Doc 15; 5.95 l/s / 88 kPa / 82 C; 230 V/1 ph, 6.86 A, 1508 W, 61 kg; DN80 flexible connectors both sides |
1 | No. | 5,216.00 | £5,216.00 |
| F5.17 | P/B1/2.x drain valve (DN15 on suction, capped) | 1 | No. | 94.24 | £94.24 |
| F5.18 | P/B1/2.x BMS interface (DI 05 + DO 04) | 1 | LS | 140.48 | £140.48 |
| F5.19 | Pressurisation Unit PU/B1/1 - Flamco PressDS primary LTHW + dosing pot Per Doc 17; 9,750 L system; 0.79/2.5/3.0 bar; 18 L dosing |
1 | No. | 5,032.00 | £5,032.00 |
| F5.20 | Pressurisation Unit PU/B1/2 - Flamco PressDS secondary LTHW + dosing pot As F5.19; 3,676 L system; 0.84 bar fill |
1 | No. | 4,332.00 | £4,332.00 |
| F5.21 | Expansion vessels - 2x 425 L factory pre-charged 0.79 bar (primary, for PU/B1/1) — upsized from 300 L per SBS note | 2 | No. | 1,186.58 | £2,373.16 |
| F5.22 | Expansion vessels - 3x 110 L factory pre-charged 0.84 bar (secondary, for PU/B1/2) | 3 | No. | 450.27 | £1,350.81 |
| F5.23 | Lockshield valves on PU inlet + system connection (Contractor-fitted per Doc 17 Note 9) - 4x DN25 LSV | 4 | No. | 60.00 | £240.00 |
| F5.24 | PU fill-loop pipework (Ø15 mm) + isolation valves + DCV | 2 | LS | 336.00 | £672.00 |
| F5.25 | PU overflow pipework (Ø22 mm) to plant-room gully | 2 | LS | 200.00 | £400.00 |
| F5.26 | PU electrical hook-up (Way 4 L1 + L2 10 A SP+N 2.5 mm2 each) | 2 | LS | 152.00 | £304.00 |
| F5.27 | PU BMS interface - 2x DI common fault + 2x DI pump trip + boiler interlock wiring Per Doc 21 |
1 | LS | 280.00 | £280.00 |
| F5.28 | Chemical first-fill - primary LTHW (inhibitor + biocide) See also E9.1 |
9750 | L treated | — | — |
| F5.29 | Chemical first-fill - secondary LTHW See also E9.2 |
3676 | L treated | — | — |
| F5.30 | LTHW pipework - Ø100 mm F + Ø100 mm R (carbon steel to BS EN 10255) Per Docs 8, 10 |
24 | LM | 130.00 | £3,120.00 |
| F5.31 | LTHW pipework - Ø80 mm F + Ø80 mm R (carbon steel, sub-circuit) | 20 | LM | 101.60 | £2,032.00 |
| F5.32 | LTHW pipework - Ø80 mm VT F + Ø80 mm VT R (carbon steel, vent) | 8 | LM | 112.00 | £896.00 |
| F5.33 | LTHW pipework - Ø65 mm F + Ø65 mm R (carbon steel, tertiary) | 16 | LM | 84.00 | £1,344.00 |
| F5.34 | LTHW pipework - Ø65 mm VT F + Ø65 mm VT R (carbon steel, vent) | 6 | LM | 97.00 | £582.00 |
| F5.35 | LTHW pipework - Ø32 mm / Ø40 mm branches (copper or carbon steel) Boiler flow/return DN32 per Doc 12 |
18 | LM | 62.67 | £1,128.00 |
| F5.36 | LTHW pipework fittings (elbows, tees, reducers, flanges, unions) 30% of pipework value allowance |
1 | LS | 2,332.00 | £2,332.00 |
| F5.37 | LTHW isolation valves - butterfly DN80 DZR (Crane F621 or equal, per Doc 20) | 10 | No. | 132.15 | £1,321.50 |
| F5.38 | LTHW isolation valves - butterfly DN100 DZR | 4 | No. | 190.32 | £761.28 |
| F5.39 | LTHW isolation valves - butterfly DN65 DZR | 6 | No. | 119.18 | £715.08 |
| F5.40 | LTHW isolation valves - ball DN50 and below DZR Boiler / TS / PHE / Pump ancillaries |
20 | No. | 58.82 | £1,176.40 |
| F5.41 | LTHW isolation valves - gate DN25-DN50 DZR | 8 | No. | 84.50 | £676.00 |
| F5.42 | LTHW non-return valves - swing / wafer / lift check DN50+ Per Doc 20 pattern |
8 | No. | 126.00 | £1,008.00 |
| F5.43 | LTHW non-return valves - single-check DN50 and below | 6 | No. | 59.33 | £356.00 |
| F5.44 | LTHW Y-type strainers DN80+ | 4 | No. | 177.20 | £708.80 |
| F5.45 | LTHW Y-type strainers DN50 and below | 10 | No. | 121.93 | £1,219.30 |
| F5.46 | LTHW drain cocks (hose union DC DN15) At all low points |
16 | No. | 12.74 | £203.84 |
| F5.47 | LTHW automatic air vents (AAV) At all high points |
12 | No. | 26.78 | £321.36 |
| F5.48 | LTHW purge valves + vent terminations | 6 | No. | 63.33 | £380.00 |
| F5.49 | LTHW commissioning sets (CS) - FODRV DN80 Crane / Hattersley / Peglar CS/B1/2.1, 2.2, 2.3 per Doc 19 |
3 | No. | 595.62 | £1,786.86 |
| F5.50 | LTHW commissioning sets (CS) - FODRV DN65 CS/B1/3.1, 3.2 |
2 | No. | 498.52 | £997.04 |
| F5.51 | LTHW commissioning set (CS) - FODRV DN65 on DHW R CS/B1/3.3 per Doc 19 |
1 | No. | 498.52 | £498.52 |
| F5.52 | LTHW measuring stations (MS) - DN40 at each boiler outlet MS/B1/1.1, 1.2, 1.3 per Doc 19 |
3 | No. | 224.67 | £674.00 |
| F5.53 | LTHW measuring stations (MS) - DN65 on common LTHW R MS/B1/1.4, 1.5 |
2 | No. | 207.41 | £414.82 |
| F5.54 | Heat meter H1 - Ø80 mm ultrasonic MID + 2x matched Pt pockets + integrator + Mbus Per Doc 22 |
1 | No. | 2,608.00 | £2,608.00 |
| F5.55 | Heat meter validation visit + calibration certificate | 1 | LS | 448.00 | £448.00 |
| F5.56 | Future temporary-boiler tappings - 2x Ø65 mm flanged + gate valve + drain Per SoW v2 + Doc 10 P06; capped, Traffolyte labelled |
2 | No. | 478.00 | £956.00 |
| F5.57 | Combined deaerator / dirt separator (DA/DSE) - primary loop Spirovent / equal per Doc 10 / Doc 20 Note 5 |
1 | No. | 1,749.00 | £1,749.00 |
| F5.58 | Combined deaerator / dirt separator (DA/DSE) - secondary loop | 1 | No. | 992.00 | £992.00 |
| F5.59 | Expansion / contraction allowance - natural flexibility, loops, anchors, guides Per Doc 8 Note 12 |
1 | LS | 1,082.00 | £1,082.00 |
| F5.60 | LTHW pipe supports - hangers, brackets, Unistrut, fixings (2.0-2.5 m centres) Per Doc 23 Tables 11, 12; KE Spec 036 |
1 | LS | 2,864.00 | £2,864.00 |
| F5.61 | Primary header + distribution interface tie-in to existing retained distribution Verify sizes per Doc 8 Note 10 |
1 | LS | 2,472.00 | £2,472.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F6.1 | New Mechanical Control Panel (MCP) - floor/wall-mounted IP-rated enclosure with weather-compensation controller, H/O/A, indication lamps, isolator, E-stop Per SoW + Doc 5 Section 4.1.6 + Doc 24 |
1 | No. | 7,664.00 | £7,664.00 |
| F6.2 | BMS outstation - 54 points I/O (32 AI + 3 AO + 14 DI + 5 DO) + >=20% spare capacity Per Doc 21 |
1 | No. | 3,832.00 | £3,832.00 |
| F6.3 | BMS outstation within MCP enclosure + terminations | 1 | LS | 616.00 | £616.00 |
| F6.4 | Field temperature sensors - PT1000 pocket type for thermal store stratification 4x per vessel x 3 vessels - AI 03-14 |
12 | No. | — | — |
| F6.5 | Field temperature sensors - pipework pocket or strap-on (LTHW common F/R; HX common F/R primary+secondary; LTHW VT F/R; DHW R x3 + 2 PHE returns; DHW CF) Per Doc 21 AI 01, 02, 15-22, 24-27 |
13 | No. | 66.00 | £858.00 |
| F6.6 | PHE controller temperature inputs AI 29, 30, 31 per Doc 21 |
3 | No. | 59.33 | £178.00 |
| F6.7 | External (outdoor) temperature sensor - north-facing, shaded AI 32 |
1 | No. | 189.00 | £189.00 |
| F6.8 | Field DP sensors and PHE controller field devices Per Doc 13 / Doc 15 pump skid specs |
1 | LS | 508.00 | £508.00 |
| F6.9 | Motorised control valve CV/B1/01 - Siemens 3-port mixing, DN65 line, Kvs 13.21, 0-10 V actuator Per Doc 18; supplied by BMS specialist |
1 | No. | 1,092.00 | £1,092.00 |
| F6.10 | Motorised control valve CV/B1/02 - Siemens 3-port mixing, DN80 line, Kvs 15.17, 0-10 V actuator Per Doc 18 |
1 | No. | 1,272.00 | £1,272.00 |
| F6.11 | Control-valve reducers + flanges where valve DN differs from pipe DN | 2 | LS | 89.50 | £179.00 |
| F6.12 | Mbus gateway - integrating W1, H1, electrical incomer meter Per Doc 22 Note 1.1; Doc 24 Section 4.2.1 |
1 | No. | 658.00 | £658.00 |
| F6.13 | Mbus bus wiring Nominal |
50 | LM | 7.16 | £358.00 |
| F6.14 | BMS control cabling - ELV, segregated compartment of 2-comp trunking, PAZ cable markers Per Doc 24 |
1 | LS | 1,082.00 | £1,082.00 |
| F6.15 | Network link from new MCP to existing Satchwell BMS head-end (protocol gateway) Per Doc 23 Table 14 Item 6.5.4 |
1 | No. | 1,216.00 | £1,216.00 |
| F6.16 | Modifications to existing MCP cabling (where retained) Per Doc 23 Table 14 Item 6.5.5 |
1 | LS | 412.00 | £412.00 |
| F6.17 | Update existing BMS graphics + trends + schedules to incorporate new plant Per Doc 23 Table 14 Item 6.5.6 |
1 | LS | 912.00 | £912.00 |
| F6.18 | BMS programming (cascade logic, weather compensation, alarm strategy, interlocks) | 1 | LS | 1,348.00 | £1,348.00 |
| F6.19 | BMS interface to each packaged controller (boiler cascade, PHE skids, PU controllers, BTBS) | 1 | LS | 616.00 | £616.00 |
| F6.20 | BMS Site Acceptance Testing + documentation | 1 | LS | 496.00 | £496.00 |
| F6.21 | Gas Safety Panel fire-alarm interface wiring to existing FA loop See also G6 |
1 | LS | 328.00 | £328.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F7.1 | Pipework insulation - LTHW primary / secondary / tertiary (mineral wool + foil-faced jacket) - Ø100 mm pipework Per KE Spec 036 + Doc 23 Section C1.7.1 |
44 | LM | 65.64 | £2,888.00 |
| F7.2 | Pipework insulation - Ø80 mm Incl. VT lines |
28 | LM | 52.57 | £1,472.00 |
| F7.3 | Pipework insulation - Ø65 mm Incl. VT lines |
22 | LM | 49.91 | £1,098.00 |
| F7.4 | Pipework insulation - Ø50 mm and below (LTHW branches) | 18 | LM | 44.33 | £798.00 |
| F7.5 | DHW pipework insulation - Ø67 / Ø54 / Ø35 | 63 | LM | 53.81 | £3,390.00 |
| F7.6 | Gas pipework - no insulation (labelling only) | - | — | — | |
| F7.7 | Valve / pump insulation - removable jackets where required (hot services) | 1 | LS | 2,168.00 | £2,168.00 |
| F7.8 | Thermal store insulation (included in F5.10) | - | — | — | |
| F7.9 | DA/DSE + commissioning set insulation jackets | 1 | LS | 1,886.00 | £1,886.00 |
| F7.10 | Pipework identification - BS 1710 service bands + flow-direction arrows At regular intervals + all equipment entries/exits |
1 | LS | 770.00 | £770.00 |
| F7.11 | Engraved Traffolyte plant tags (included in A9.4) | - | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G1.1 | New 12-Way TP+N 125 A MCB Distribution Board 'DB/BH' Schneider Merlin Gerin (or Eaton MEM Memshield); switch-disconnector incomer; Type B/C/D MCBs; 10 kA; live busbar shrouding; lockable door + 2 keys; surge protection; Modbus meter |
1 | No. | 2,232.00 | £2,232.00 |
| G1.2 | Modbus incoming meter - A/V/kW/kVA/kVAr/PF/kWh/kVArh - Mbus to BMS Per Doc 24 Section 4.2.1 |
1 | No. | 524.00 | £524.00 |
| G1.3 | Surge Protection Device (Type 2 SPD) on DB incomer Per Doc 24 Section 4.2.1 |
1 | No. | 402.00 | £402.00 |
| G1.4 | DB commissioning, circuit labelling, Danger 230/400 V notices, durable circuit chart 3 mm engineered plastic labels, brass-fixed |
1 | LS | 288.00 | £288.00 |
| G1.5 | Re-termination into existing sub-main Subject to Risk 27 verification; provisional upgrade per I6 |
1 | LS | 288.00 | £288.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G2.1 | 2-compartment galvanised Class 4 LV trunking 150 x 50 mm (Legrand Salamandre 4X or equal) - wall-mounted HL Per Doc 9 |
28 | LM | 62.71 | £1,756.00 |
| G2.2 | 2-compartment galvanised Class 4 LV trunking 150 x 50 mm - ceiling-suspended Per Doc 9 |
12 | LM | 85.00 | £1,020.00 |
| G2.3 | Trunking accessories - bends, tees, couplers, risers, end caps, earth continuity straps Legrand-compatible |
1 | LS | 608.00 | £608.00 |
| G2.4 | Unistrut support framework - Location 1 (near isolator bank) Per Doc 9 |
1 | No. | 521.00 | £521.00 |
| G2.5 | Unistrut support framework - Location 2 (near isolator bank) Per Doc 9 |
1 | No. | 521.00 | £521.00 |
| G2.6 | Unistrut brackets, fixings, earth bonding | 1 | LS | 306.00 | £306.00 |
| G2.7 | Metallic conduit for final connections Galvanised to Class 4 |
25 | LM | 20.48 | £512.00 |
| G2.8 | Metallic conduit fittings 30% of conduit value allowance |
1 | LS | 224.00 | £224.00 |
| G2.9 | Flexible conduits IP56 steel LSXH (Kopex / Adaptaflex / equal) - max 1 m each Per Doc 24 |
10 | No. | 45.40 | £454.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G3.1 | 6491B 2.5 mm2 LSZH single-core copper - boiler, gas panel, PU, pumps, BTBS, PHE 1.1 circuits Per Doc 9 DB schedule |
220 | LM | 7.17 | £1,578.00 |
| G3.2 | 6491B 4 mm2 LSZH single-core copper - MCP 3-ph and PHE 2.1 3-ph Per Doc 9 |
90 | LM | 9.33 | £840.00 |
| G3.3 | Cable PAZ LSOH alpha-numeric markers at all terminations Per Doc 24 |
1 | LS | 408.00 | £408.00 |
| G3.4 | Circuit identification labels - professional printed, clear adhesive, on outlets and isolators | 1 | LS | 184.00 | £184.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G4.1 | IP65 SP+N 10 A rotary isolator - Boiler B/B1/1.1 Per Doc 9 |
1 | No. | 107.00 | £107.00 |
| G4.2 | IP65 SP+N 10 A rotary isolator - Boiler B/B1/1.2 | 1 | No. | 107.00 | £107.00 |
| G4.3 | IP65 SP+N 10 A rotary isolator - Boiler B/B1/1.3 | 1 | No. | 107.00 | £107.00 |
| G4.4 | IP65 SP+N 16 A rotary isolator - Gas Safety Panel GP | 1 | No. | 117.00 | £117.00 |
| G4.5 | IP65 SP+N 10 A rotary isolator - Pressurisation Unit PU/B1/1 | 1 | No. | 107.00 | £107.00 |
| G4.6 | IP65 SP+N 10 A rotary isolator - Pressurisation Unit PU/B1/2 | 1 | No. | 107.00 | £107.00 |
| G4.7 | IP65 SP+N 10 A rotary isolator - Pump P/B1/3.1 | 1 | No. | 107.00 | £107.00 |
| G4.8 | IP65 TP+N 20 A rotary isolator - Mechanical Control Panel | 1 | No. | 172.00 | £172.00 |
| G4.9 | IP65 SP+N 10 A rotary isolator - Pump P/B1/2.1 | 1 | No. | 107.00 | £107.00 |
| G4.10 | IP65 SP+N 10 A rotary isolator - Pump P/B1/2.2 | 1 | No. | 107.00 | £107.00 |
| G4.11 | IP65 SP+N 20 A rotary isolator - BTBS/B1/1 (corrected from 10 A on Doc 9) FLC 15 A per Doc 16 |
1 | No. | 127.00 | £127.00 |
| G4.12 | IP65 TP+N 10 A rotary isolator - PHE PHX/B1/2.1 3-ph - to confirm at Stokvis order |
1 | No. | 147.00 | £147.00 |
| G4.13 | IP65 SP+N 10 A rotary isolator - PHE PHX/B1/1.1 | 1 | No. | 107.00 | £107.00 |
| G4.14 | Isolator labels - professional silk-screen printed, not self-adhesive Per Doc 24 Section 4.2.2 |
13 | No. | 20.00 | £260.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G5.1 | 13 A twin switched socket - general-purpose (high level) Nominal allowance; final positions agreed with Kettlewick Estates |
4 | No. | 74.00 | £296.00 |
| G5.2 | 13 A twin switched socket - cleaner's outlets | 2 | No. | 74.00 | £148.00 |
| G5.3 | Small-power wiring in metallic conduit Nominal |
30 | LM | 16.87 | £506.00 |
| G5.4 | Outlet labelling - DB/BH / circuit number | 1 | LS | 82.00 | £82.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G6.1 | Fire alarm interface to existing Malthouse Block FA loop from Gas Safety Panel | 1 | LS | 512.00 | £512.00 |
| G6.2 | FA panel cause-and-effect programming update (existing FA contractor) | 1 | LS | 462.00 | £462.00 |
| G6.3 | FA loop extension wiring As required |
15 | LM | 18.40 | £276.00 |
| G6.4 | FA interface functional test + certificate | 1 | No. | 154.00 | £154.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G7.1 | Main earth conductor from DB/BH earth bar to Main Earth Terminal Per BS 7430 |
1 | LS | 358.00 | £358.00 |
| G7.2 | Equipotential bonding to LTHW, DHW, MCWS, NGAS, condensate new metalwork | 1 | LS | 616.00 | £616.00 |
| G7.3 | Supplementary bonding to BTBS, TS steel frame, boiler cascade frame, PHE skids, PU, flue liner (where applicable) | 1 | LS | 666.00 | £666.00 |
| G7.4 | Earth bonding clamps, conductors, tags | 1 | LS | 388.00 | £388.00 |
| G7.5 | Earthing + bonding specialist (NICEIC) - design, install, test | 1 | LS | 412.00 | £412.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G8.1 | Re-termination + test of Way 1 L1 (EM Station) | 1 | No. | 134.00 | £134.00 |
| G8.2 | Re-termination + test of Way 1 L2 (Boiler Room Sockets) | 1 | No. | 134.00 | £134.00 |
| G8.3 | Re-termination + test of Way 1 L3 (Garage Lights) | 1 | No. | 134.00 | £134.00 |
| G8.4 | Re-termination + test of Way 2 L1 (Data Bird + Sump Pump) | 1 | No. | 134.00 | £134.00 |
| G8.5 | Re-termination + test of Way 2 L2 (Boiler House Lighting) | 1 | No. | 134.00 | £134.00 |
| G8.6 | Minor Works Certificates for retained circuits | 5 | No. | 120.80 | £604.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| G9.1 | IR, earth-loop impedance, continuity, RCD trip-time tests - all new circuits BS 7671 |
1 | LS | 566.00 | £566.00 |
| G9.2 | NICEIC Electrical Installation Certificate (EIC) - all new installation Per Doc 24 Section 7 |
1 | No. | 408.00 | £408.00 |
| G9.3 | Point-to-point test of BMS final-circuit wiring Interface with E17 |
1 | LS | 392.00 | £392.00 |
| G9.4 | Gas Panel / FA interface functional test | 1 | No. | 216.00 | £216.00 |
| G9.5 | Earthing + bonding test + certificate | 1 | No. | 258.00 | £258.00 |
| G9.6 | Part L2 Logbook electrical section completion Per Doc 24 Section 9 |
1 | LS | 196.00 | £196.00 |
| G10.1 | Electrical as-installed drawings (1:50 or larger) - AutoCAD DWG + PDF + paper full-size + A3 Per Doc 24 Section 6, 9 |
1 | LS | 952.00 | £952.00 |
| G10.2 | Electrical O&M content contribution to main manual Interfaces with A9.2 |
1 | LS | 476.00 | £476.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| H1.1 | No proposed statutory works (Doc 23 Table 17) Per SDS Table 17 - nil |
- | — | — |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I1.1 | Tests and samples additional to those specified in the Sections Provisional Sum - drawn against instruction |
1 | LS | 1,500.00 | £1,500.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I2.1 | Plant selection changes due to incorrect assumptions in Risk Tracker Provisional Sum |
1 | LS | 4,000.00 | £4,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I3.1 | Flue cannot be accepted by existing chimney stack - alternative routing Provisional Sum |
1 | LS | 6,000.00 | £6,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I4.1 | Replacement lighting if existing unsuitable (Risk 29) Provisional Sum |
1 | LS | 1,000.00 | £1,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I5.1 | Replacement fire alarm if existing unsuitable (Risk 30) Provisional Sum |
1 | LS | 500.00 | £500.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I6.1 | Replacement sub-main and re-wiring if existing inadequate (Risk 27) Provisional Sum |
1 | LS | 2,000.00 | £2,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| I7.1 | General project contingency Provisional Sum |
1 | LS | 2,500.00 | £2,500.00 |
Six independently-electable Value Engineering options offered as alternatives to the baseline specification. Each may be elected individually or in combination, subject to SES Ltd / Contract Administrator written sign-off. Click any option to expand the baseline-vs-alternative line items.
Replace 3 × 2,000 L thermal stores with 1 × 6,000 L vertical unvented thermal store. Simplifies hydraulics and reduces plinth/pipework footprint. Requires SES Ltd design-team approval of equivalent-duty performance.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F5.6 | Thermal store 2,000 L vertical PD 5500 Cat 3 carbon steel — vessel 1 | 1 | No. | 4,270.00 | £4,270.00 |
| F5.7 | Thermal store 2,000 L vertical PD 5500 Cat 3 carbon steel — vessel 2 | 1 | No. | 4,270.00 | £4,270.00 |
| F5.8 | Thermal store 2,000 L vertical PD 5500 Cat 3 carbon steel — vessel 3 | 1 | No. | 4,270.00 | £4,270.00 |
| F5.9 | Bespoke steel support frame (3 vessels) | 1 | No. | 3,000.00 | £3,000.00 |
| F5.10 | Insulation jacket + cladding per vessel | 3 | No. | 744.00 | £2,232.00 |
| F5.9L | Frame fabrication labour (2 ops × 16 hrs × £52) | 1 | LS | 1,664.00 | £1,664.00 |
| F5.10L | Insulation fit labour (2 ops × 16 hrs × £52) | 1 | LS | 1,664.00 | £1,664.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F5.6 (VE) | Thermal store 6,000 L vertical unvented (single vessel) | 1 | No. | 9,000.00 | £9,000.00 |
| F5.9 (VE) | Simpler mounting for single 6,000 L vessel | 1 | No. | 500.00 | £500.00 |
| F5.10 (VE) | Single larger insulation jacket | 1 | No. | 1,500.00 | £1,500.00 |
| F5.9L (VE) | Frame install labour (2 ops × 4 hrs × £52) | 1 | LS | 416.00 | £416.00 |
| F5.10L (VE) | Insulation fit labour (2 ops × 8 hrs × £52) | 1 | LS | 832.00 | £832.00 |
Replace paired 700 kW DHW plate heat exchangers with a single 700 kW unit. Predicated on confirmed reduced peak DHW demand (SES Ltd Stage 3 review). Removes N+1 resilience — any DHW PHE outage takes DHW supply off-line.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.1 | Stokvis Econoplate packaged DHW PHE skid, 700 kW — unit 1 | 1 | No. | 22,000.00 | £22,000.00 |
| F4.2 | Stokvis Econoplate packaged DHW PHE skid, 700 kW — unit 2 | 1 | No. | 22,000.00 | £22,000.00 |
| F4.3 | PHE installation, flanged connection DN50 PN10 | 2 | No. | 200.00 | £400.00 |
| F4.4 | PHE electrical hook-up (Way 7 3-ph + Way 8 SP+N) | 1 | LS | 40.00 | £40.00 |
| F4.5 | Spare plate + tube assembly supply (1 per PHE) | 2 | No. | 2,000.00 | £4,000.00 |
| F4.3L | Flange install labour (2 ops × 8 hrs × £52) | 1 | LS | 832.00 | £832.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.1 (VE) | Stokvis Econoplate 700 kW DHW PHE skid — single unit only | 1 | No. | 22,000.00 | £22,000.00 |
| F4.3 (VE) | PHE install, single unit | 1 | No. | 200.00 | £200.00 |
| F4.4 (VE) | PHE electrical hook-up (single PHE) | 1 | LS | 40.00 | £40.00 |
| F4.5 (VE) | Spare plate + tube assembly (single) | 1 | No. | 2,000.00 | £2,000.00 |
| F4.3L (VE) | Flange install labour (2 ops × 8 hrs × £52) | 1 | LS | 832.00 | £832.00 |
Substitute 4-hour fire-resistance flue specification with 3-hour FR. Applicable only where the flue route does not cross compartment boundaries. Requires Fire Engineer / Approved Document B review and sign-off.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F3.13 | Twin-wall flue system, CE V-band clamped — 4-hour FR | 1 | LS | 12,000.00 | £12,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F3.13 (VE) | Twin-wall flue system, CE V-band clamped — 3-hour FR | 1 | LS | 9,000.00 | £9,000.00 |
Substitute UKE (UK Exchangers Ltd) packaged DHW PHE for Stokvis Econoplate, supplied through SBS Cambridge. Quoted saving is per-PHE, so total saving is £9,401 if VE-2 accepted (1 PHE), £18,802 if VE-2 rejected (2 PHEs). Spec sign-off required from SES Ltd Stage 4 design team confirming UKE meets duty / WRAS / specification requirements.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.1 | Stokvis Econoplate packaged DHW PHE skid, 700 kW (per PHE) | 1 | No. | 22,000.00 | £22,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.1 (VE) | UKE-14-4PV-64-700 packaged DHW PHE 700 kW with twin-head primary pump (per PHE) | 1 | No. | 12,598.58 | £12,598.58 |
Substitute UKE-5 bare 66-plate plate heat exchanger for Stokvis Econoplate packaged skid. UKE-5 is supplied as a bare exchanger and is built up on-site with isolation, commissioning, gauges and pipework. Net saving captured AFTER add-back of commissioning-set components that come integral on the Stokvis skid. Recommendation: only accept if commercial saving outweighs the loss of factory pre-commissioning and packaged-skid certification.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F5.13 | Stokvis Econoplate packaged 250 kW heating PHE skid (factory-assembled, integral commissioning, frame, gauges) | 1 | No. | 12,000.00 | £12,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F5.13a (VE) | UKE-5 66-plate 316 SS PHE (bare exchanger) | 1 | No. | 2,640.00 | £2,640.00 |
| F5.13b (VE) | Insulation jacket | 1 | No. | 570.00 | £570.00 |
| F5.13c (VE) | Stainless drip tray UKE59 | 1 | No. | 168.00 | £168.00 |
| F5.13d (VE) | Site-fitted commissioning ancillaries — 2× DN65 isolation butterflies + DCV + flow regulator | 1 | LS | 750.00 | £750.00 |
| F5.13e (VE) | Pressure & temperature gauges and fittings | 1 | LS | 150.00 | £150.00 |
| F5.13f (VE) | Interconnect pipework + frame supports + on-site assembly labour (2 ops × 8 hrs × £52) | 1 | LS | 1,132.00 | £1,132.00 |
Substitute DAB ESYTANK PRO 500AG ESYTWIN booster set for Arrow Valves Boost-A-Break BTBS, supplied through SBS Cambridge. DAB unit provides equivalent WRAS Fluid Cat 5 air-gap break and boosted cold water duty. WRAS / specification compliance to be confirmed with SES Ltd / Approved Plumber.
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.6 | Arrow Valves Boost-A-Break Tank Set BTBS/B1/1 — WRAS Fluid Cat 5 air-gap break tank with duplex centrifugal pumps | 1 | No. | 9,000.00 | £9,000.00 |
| Ref | Description | Qty | Unit | Rate £ | Line £ |
|---|---|---|---|---|---|
| F4.6a (VE) | DAB ESYTANK PRO 500AG ESYTWIN COMPLETE (500 L break tank, twin pumps) | 1 | No. | 4,288.20 | £4,288.20 |
| F4.6b (VE) | DAB ESY I/O V2 ESYBOX-compatible interface module | 1 | No. | 288.36 | £288.36 |
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