Pre-Con · Tender Return Analysis (TRA) · Worked example Northgate Chambers - Floors 4-6 Cat-B Fit-Out · Cushman Workplace · NG-2026-0042 · £1.42m
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Tender Return Analysis

WP-09 Mechanical Services — Supplier Tender Return Comparison. 4 returns evaluated across 15 weighted criteria. Apples-for-apples normalisation. Scored, risk-assessed, and recommended for award.
Project
Northgate Chambers Cat-B Fit-Out · Manchester
Reference
NG-TRA-WP09-001 Rev 1
Package
WP-09 Mechanical Services · Supplementary Cooling, Ductwork & Controls
Budget
£186,400 (Pre-Con Pack BoQ estimate)
Returns
4 of 5 invited · 1 declined (capacity)
Date
28 April 2026
EVALUATION METHODOLOGY

15 Criteria — Weighted & Scored

Every return is evaluated against 15 criteria, each weighted to reflect its importance to this project. Price matters — but it's 25% of the score, not 100%. A low price with exclusions, thin QHSE credentials, or programme risk can cost more than a higher price with a compliant, low-risk return.

Each criterion is scored 1–5 per supplier: 5 (excellent/exceeds), 4 (good/compliant), 3 (adequate/minor gaps), 2 (below standard/concerns), 1 (non-compliant/reject). The weighted score determines the ranking. The recommendation considers the score plus qualitative risk factors.

CategoryCriterionWeightWhat We're Assessing
Commercial (43%)1. Price Competitiveness25%Normalised price after exclusions/qualifications added back
2. ACE — Commercial Envelope10%Exclusions, qualifications, caveats, assumptions. How clean is the return?
3. Warranty & Defects Terms8%DLP alignment, warranty scope, manufacturer-backed vs contractor-backed
Delivery (23%)4. Programme & Lead Times10%Alignment with master programme, lead time risks, mobilisation speed
5. Quality of Return / Compliance8%Completeness, BoQ coverage, spec compliance, missing items
6. Capacity & Current Workload5%Team availability, competing projects, resource risk
Risk & Compliance (19%)7. QHSE8%H&S record (AFR/RIDDOR), quality systems, environmental credentials
8. Accreditations5%ISO 9001/14001/45001, CHAS, Constructionline, F-Gas, NICEIC, BESA
9. Risk Profile6%Financial stability, insurance levels, dispute history, supply chain risk
Experience (12%)10. Past Experience / Case Studies6%Similar projects (Cat-B, commercial, M&E), scale, sector relevance
11. Local Labour / Management3%Local management presence, workforce from within 30-mile radius
12. Geographical Coverage3%Office proximity, response time for snagging/defects, regional presence
Social & Design (3%)13. Social Value3%Apprenticeships, local employment, community engagement, modern slavery
14. Design CapabilityAssessed qualitatively — not scored (D&B design element is MC-led)
15. Financial StandingPass/fail credit check — not scored unless marginal
TOTAL100%
COMPLIANCE CHECK — PASS / FAIL

Pre-Scoring Gateway

Before scoring, each return is checked against mandatory compliance requirements. A fail on any item means the return cannot proceed to scoring without clarification or re-submission.

RequirementArdenwoodMeridianOakfieldPennine
Return received by deadlinePASSPASSPASSPASS
All BoQ items priced (no blanks)PASSPASS2 BLANKS6 BLANKS
Insurance levels met (£5m PL/£10m PI)PASSPASSPASS£2m PI
Credit check — satisfactoryPASSPASSPASSPASS
Method statement submittedPASSPASSPASSGENERIC
Programme submittedPASSPASSPASSMISSING
F-Gas registration (mandatory)PASSPASSPASSPASS
Modern slavery statementPASSPASSPASSPASS
Pennine Building Services: 6 blank BoQ items (condensate, BMS integration, commissioning, testing, O&M manuals, as-built drawings). PI insurance at £2m vs £10m required. No programme submitted. Method statement is generic (not project-specific). Return assessed as non-compliant pending clarification. Pennine asked to re-submit by 2 May or be excluded from scoring.
Oakfield M&E: 2 blank BoQ items (BMS integration, commissioning). Clarification requested 25 April — Oakfield confirmed these are included within their controls line item (combined pricing). Accepted — proceed to scoring with note.
SCORING MATRIX

Weighted Score Comparison — 4 Suppliers

Each supplier scored 1–5 per criterion. Weighted score = raw score × weight. Total determines ranking. Pennine scored despite compliance gaps — shown for comparison but flagged.

CriterionWtArdenwoodMeridianOakfieldPennine
1. Price Competitiveness25%5345
2. ACE — Commercial Envelope10%4531
3. Warranty & Defects8%4543
4. Programme & Lead Times10%4431
5. Quality of Return8%5532
6. Capacity / Workload5%4344
7. QHSE8%4532
8. Accreditations5%4532
9. Risk Profile6%4532
10. Past Experience6%4532
11. Local Labour / Mgmt3%5344
12. Geographical Coverage3%5345
13. Social Value3%4432
WEIGHTED TOTAL4.374.273.352.67
RANK1st2nd3rd4th
PRICE NORMALISATION — APPLES FOR APPLES

What Each Supplier Actually Costs

Raw tender prices don't tell the full story. Exclusions, qualifications and missing items must be priced back in to create a like-for-like comparison. This is the normalised price — what each supplier would actually cost if all scope items were included.

ComponentArdenwoodMeridianOakfieldPennine
Tendered price (as submitted)£174,200£198,600£181,400£162,800
+ Excluded items priced back in£0£0£4,200£18,600
+ Qualifications / caveats costed£2,400£0£3,800£6,200
+ Missing BoQ items (estimated)£0£0£0£12,400
NORMALISED PRICE£176,600£198,600£189,400£200,000
vs Budget (£186,400)−£9,800+£12,200+£3,000+£13,600
Key finding: Ardenwood is cheapest on raw price AND normalised price. Their return has minimal exclusions (only a £2,400 qualification on crane hire for rooftop condenser, which they've priced as a provisional sum). Pennine, despite being the lowest raw price (£162,800), becomes the most expensive once excluded and missing items are priced back in (£200,000). The "cheapest" supplier is actually the most expensive.
SUPPLIER ASSESSMENTS

Individual Supplier Analysis

RECOMMENDED Ardenwood Mechanical Ltd

NORMALISED PRICE
£176,600 — £9,800 under budget. Lowest normalised price of all 4 returns.
RETURN QUALITY
Excellent. All 9 BoQ items priced. Method statement is project-specific with detailed sequence for each floor. Programme submitted as Gantt chart aligning with master programme milestones. Only 1 qualification (crane hire as provisional sum — reasonable).
EXPERIENCE
3 comparable Cat-B M&E projects in Manchester in the last 2 years: MediaCityUK Floor 7 (£210k), Spinningfields Tower 2 (£185k), Ancoats Creative Hub (£140k). References checked — positive on all three. QS on Spinningfields confirmed "completed on time, no commercial disputes, clean final account."
QHSE
ISO 9001, ISO 14001, ISO 45001. CHAS accredited. Constructionline Gold. F-Gas registered. Zero RIDDOR incidents in last 3 years. AFR: 0.12 (industry average: 0.38). Dedicated QHSE manager (not dual-hatted).
LOCAL PRESENCE
Head office: Trafford Park, Manchester (4 miles from site). All proposed site team from within Greater Manchester. Named supervisor: Mark Llewellyn (10 years with the company, worked on MediaCityUK project).
RISK FACTORS
LOW RISK — turnover £4.2m (this job is 4.2% of turnover — comfortable), £5m PL / £10m PI, Dun & Bradstreet rating: minimal risk. 2 current projects completing in May — capacity confirmed for June start.

BACKUP Meridian Climate Systems

NORMALISED PRICE
£198,600 — £12,200 over budget. Premium price but the cleanest return — zero exclusions, zero qualifications, manufacturer-backed 5-year warranty on all equipment.
RETURN QUALITY
Outstanding. The benchmark return — every BoQ item priced, detailed method statement, risk register, design-stage proposals for energy efficiency improvements, full O&M manual specification. The return other suppliers should aspire to.
EXPERIENCE
National firm with North West office. 12 comparable Cat-B projects in the last 3 years across Manchester, Leeds, Birmingham. Blue-chip client portfolio (JLL, CBRE, Brookfield). ISO 9001/14001/45001 + BESA Gold. The quality leader.
RISK FACTORS
LOW RISK — turnover £28m, strong balance sheet, excellent insurance. Only concern: large firm may deprioritise a £198k subcontract vs their larger projects. Named project manager confirmed — but monitor.

RESERVE Oakfield M&E Services

NORMALISED PRICE
£189,400 — £3,000 over budget after exclusions priced back in. Combined BMS/commissioning pricing makes line-item comparison difficult.
CONCERNS
3 exclusions requiring add-back (crane hire £2,400, builders' work holes £1,200, fire stopping to penetrations £600). Programme shows 2-week float but first-fix start is 1 week later than master programme requires — needs acceleration or re-sequencing. QHSE: ISO 9001 only (no 14001 or 45001), CHAS but not Constructionline. AFR: 0.29 — acceptable but above Ardenwood.

NOT RECOMMENDED Pennine Building Services

NORMALISED PRICE
£200,000 — lowest raw price (£162,800) but highest normalised price once 6 missing BoQ items, 4 exclusions and 3 qualifications are priced back in. The "cheapest" quote is actually the most expensive.
CONCERNS
SIGNIFICANT — 6 blank BoQ items (condensate, BMS, commissioning, testing, O&Ms, as-builts), generic method statement, no programme, PI insurance at £2m vs £10m required. Return is non-compliant on multiple criteria. Even if re-submitted, the normalised price and quality concerns make this the weakest return.
AWARD RECOMMENDATION

Recommended: Ardenwood Mechanical Ltd

Highest weighted score (4.37/5.00). Lowest normalised price (£176,600 — £9,800 under budget). Cleanest commercial envelope. Best local presence. Strong QHSE. Proven Cat-B M&E experience in Manchester. Low financial risk.

Meridian Climate Systems recommended as backup — premium price but exceptional return quality and lowest delivery risk. If budget allows, Meridian is the quality choice.

4.37
WEIGHTED SCORE
£176.6k
NORMALISED PRICE
−£9.8k
UNDER BUDGET
LOW
RISK RATING
Actions before award:
1. Pre-award meeting with Ardenwood to confirm programme alignment, named supervisor, and crane hire provisional sum scope
2. Confirm Ardenwood's capacity post-May (current projects completing)
3. Obtain 2 additional project references from the last 12 months
4. Issue order subject to 14-day lead time for equipment procurement
5. Notify unsuccessful suppliers with feedback per procurement policy

Disclaimer: All supplier names, prices, scores, accreditations and project references are fictional. The Tender Return Analysis is a real Built AI deliverable produced as part of The Pre-Con Pack™ workflow. The evaluation methodology, criteria weightings and scoring framework represent Built AI's recommended approach — clients may adjust weightings to reflect their own procurement priorities.

BuiltAI
TENDER RETURN ANALYSIS

4 returns. 15 criteria. 1 clear recommendation.

Apples for apples. The lowest raw price (£162,800) became the highest normalised price (£200,000) once exclusions were costed. The recommended supplier (£176,600) is £9,800 under budget, scores highest on 15 weighted criteria, and has the lowest risk profile. That's what a structured tender evaluation looks like.
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