Fixed-price quote risk review for UK builders

A fixed-price quote does not remove project risk. It decides which risks the contractor may have agreed to carry.

The risk review therefore sits between building the estimate and approving the client price. Its purpose is to connect incomplete information, delivery uncertainty and commercial decisions before the business commits.

A risk review is not another estimate check

An estimate check asks whether quantities, rates, extensions and totals are sensible. A risk review asks what could make those apparently sensible numbers wrong.

The distinction matters. A drainage allowance can be arithmetically correct but commercially weak if the route, depth or connection point is unknown. A roofing quotation can be correctly entered but still omit access, design or warranty requirements.

Use the construction estimating checklist to check the price build-up. Use this review to decide what uncertainty remains and how it will be treated.

Fixed price requires a clear scope basis

The review starts with the information priced: drawings, specifications, schedules, surveys, tender queries, supplier returns and site notes. Record their dates and revisions.

Where information is incomplete, do not quietly fill the gap and move on. Record the interpretation. The practical options are to obtain clarification, make a defined assumption, include an allowance, exclude the item or decide that the risk can be accepted.

The guide to pricing incomplete drawings explains how to keep missing information visible while the estimate progresses.

Build the risk register from project evidence

Do not begin with a generic list of problems. Begin with the current project pack and the estimate built from it.

1. Confirm the document and revision basis.
2. Review each work package against the source information.
3. Compare supplier and subcontractor scope with the main estimate.
4. Record missing, contradictory or low-confidence information.
5. Identify the possible cost, programme or contractual consequence.
6. Assign an owner and a commercial treatment.

This follows a wider risk-management principle: identify and assess risk, choose a treatment, then monitor and report it. HM Treasury's Orange Book applies that principle to public-sector governance; the underlying discipline is equally useful when a contractor is deciding what to carry in a price.

Risk categories to review

Scope and information

Check missing drawings, unresolved specification clauses, conflicting revisions, undefined interfaces and work that appears in one document but not another.

Quantity and rate

Check high-value or low-confidence quantities, unverified rates, old supplier evidence, waste assumptions and items priced from a broad rule of thumb.

Site and logistics

Review access, storage, lifting, protection, occupied areas, temporary services, waste routes, neighbour restrictions and unknown existing conditions.

Programme and preliminaries

Test mobilisation, sequencing, lead times, temporary works, supervision and the duration used to calculate time-related preliminaries.

Supply chain

Check quotation validity, scope gaps, exclusions, availability, design responsibility and whether the selected subcontractor basis matches the project. The guide to comparing subcontractor quotes gives a line-by-line method.

Design and compliance

Identify unresolved structural information, performance specifications, testing, certification, warranties and approvals that can change the work or its sequence.

Commercial and contractual basis

Confirm price validity, tax treatment, payment basis, bonds, retention, fluctuations, liquidated damages and any responsibility the proposed contract may transfer. Obtain appropriate legal or commercial advice where contract interpretation is required.

Record each risk in a usable format

A red, amber or green score may help prioritise the review, but it is not a treatment. The register should still show what the business will do.

Choose a deliberate risk treatment

For each material risk, decide whether to:

• Avoid it: do not offer a fixed price until the missing decision or information is resolved.
• Reduce it: obtain a survey, clarification, revised design or firm supply-chain quotation.
• Transfer or share it: use clear contract or subcontract arrangements with appropriate advice.
• Price it: include a defined risk allowance supported by a stated basis.
• Accept it: approve the exposure deliberately within the business's authority levels.

“Leave it in contingency” is not a complete decision unless the allowance, evidence and intended coverage are recorded.

Do not use contingency to hide unidentified scope

Contingency and risk allowance are not substitutes for completing the scope review. Missing work should be priced in the relevant package where it can be identified.

RICS NRM 1 guidance treats risk allowances as a considered assessment of risk rather than a standard percentage. A contractor's tender is not the same as an employer's cost plan, but the principle is useful: the allowance should reflect identified uncertainty and the pricing stage.

Keep PC sums, provisional sums and other allowances separate so the client and contractor can see what each figure covers.

Review price and programme together

A rate can be right while the allowed duration is wrong. Review labour output, access, sequencing, temporary works, lead times and dependencies wherever they affect both direct cost and preliminaries.

If the quote assumes twelve weeks but the site constraints make sixteen weeks plausible, a percentage contingency may not protect the time-related cost. The programme assumption and its consequence need an explicit decision.

Example fixed-price risk review

The example wording is illustrative. It should be adapted to the project and checked against the proposed contract.

Turn internal risks into clear quote wording

The client does not need an unfiltered internal risk register. The client does need to understand the commercial basis of the offer.

Every accepted material risk should therefore become one or more of:

• a clear inclusion
• a stated assumption
• a defined allowance
• a specific exclusion
• a clarification required before acceptance

If a risk appears in the register but not the estimate, it is not controlled. If it appears in the estimate but not the quote wording, it may not be communicated.

Set approval thresholds

Decide which exposures an estimator can approve and which require director, commercial, contracts or specialist review. Escalation triggers might include a high-value unquoted package, unresolved design responsibility, a programme qualification, an unusually long validity period or contract terms outside the normal position.

The purpose is not bureaucracy. It is to prevent a rushed tender from silently committing the business to a decision nobody intended to make.

Control risk after the quote is issued

Keep the issued estimate, risk review and client quote under the same revision. When drawings, selections, supplier prices or clarifications change, record the effect and issue a controlled revision where required.

Do not let negotiation separate the accepted price from its assumptions. The guide to protecting margin on larger projects explains why the estimate basis needs to remain visible after the headline total is agreed.

How Quotify supports fixed-price risk review

Quotify helps organise uploaded project information into structured estimating and review outputs, including scope, assumptions, allowances and exclusions. It can reduce the manual work required to create a first pass while keeping rates, margin, risk and the final commercial decision with the contractor.

The useful outcome is not a risk-free price. It is a reviewable price whose uncertainty is visible early enough for an experienced person to act.

See how the Quotify risk-review workflow fits into the wider estimating process.

Final risk-review checklist

• Confirm the drawings, specifications, schedules and quotation revisions priced.
• Review every work package for missing or contradictory scope.
• Challenge the largest and lowest-confidence quantities and rates.
• Compare subcontractor scope, attendance, programme and commercial basis.
• Review access, logistics, temporary works, programme and preliminaries.
• Give each material risk an owner, action and deadline.
• Separate identified scope from PC sums, provisional sums and risk allowances.
• Translate accepted risks into clear client-facing wording.
• Escalate exposures outside the estimator's approval authority.
• Reconcile the approved estimate, risk register and client quote before issue.