Introduction
The cheapest quote is not always the best quote.
Every experienced QS knows this. But in practice, time pressure and budget constraints push commercial teams towards the lowest number far more often than a proper evaluation would justify.
The consequences show up later. A package awarded to a subcontractor who priced incorrectly and runs out of money halfway through. A subcontract let without checking that the scope was properly included, leading to variation claims for work that should have been in the order. A programme delayed because the winning subcontractor could not resource the job at the margin they had tendered.
These are not unusual outcomes. They are predictable outcomes of a poor bid adjudication process. And they cost significantly more to resolve than the time a proper evaluation would have taken.
Bid adjudication is the commercial discipline of evaluating subcontractor quotes properly before award. It is not just about price. It is about understanding what has and has not been included, assessing the commercial risk of each bidder, and making an award decision on the basis of the full picture rather than the headline figure.
This article explains how bid adjudication works in construction, what a proper evaluation covers, and how to build a process that protects margin from the moment of award.
What Bid Adjudication Is
In construction, bid adjudication refers to the structured process of evaluating competing subcontractor or supplier bids received in response to a tender or request for quotation.
The output of a bid adjudication is a recommendation to award to a specific subcontractor, at an agreed scope and a confirmed price, with any clarifications or qualifications resolved and documented.
The adjudication process sits between the receipt of quotes and the placement of the subcontract order. How thoroughly it is carried out determines how well the subcontract is set up commercially from day one.
RICS guidance on subcontract procurement identifies bid adjudication as a core competency for quantity surveyors involved in subcontract letting, emphasising the importance of comparing tenders on a like-for-like basis before any award recommendation is made.
Why Bid Adjudication Fails in Practice
The most common failure is speed. A subcontractor quote is needed. Quotes come in. The lowest is selected. The order is placed. No evaluation has been done beyond looking at the headline price.
This creates several problems, often simultaneously.
Scope gaps. A subcontractor prices what they have understood from the enquiry documents. That understanding may not match what the main contract requires. If scope items are missing from the subcontract order, they will reappear as variation claims during the works.
Unsustainable pricing. A subcontractor who has priced incorrectly, perhaps missing a significant cost element, will struggle to deliver at their tendered price. The consequences range from poor workmanship and slow progress through to abandonment of the works, each of which is more expensive than awarding to a slightly higher price in the first place.
Qualification risk. Subcontractor quotes often include qualifications: items explicitly excluded, programme assumptions, design responsibility caveats, payment term requirements. A quote accepted without reviewing qualifications is a quote accepted without knowing what you have agreed to.
No audit trail. Without a documented adjudication, the basis on which an award was made is unclear. When a dispute arises, there is no record of what was understood to be included, what was clarified, or what qualifications were resolved.
What a Proper Bid Adjudication Covers
Scope Reconciliation
The starting point of any adjudication is establishing whether all three quotes (or however many have been received) have priced the same scope.
This sounds straightforward. In practice, subcontractors price what they understand, and what they understand varies. One bidder may have included preliminaries that another has excluded. One may have priced on the latest drawings while another is working from an earlier issue.
Scope reconciliation involves reviewing each quote against the enquiry documents and identifying what has and has not been included. Items not included in the lowest quote may need to be priced separately or clarified before the comparison is valid.
Comparing quotes at face value without scope reconciliation is not adjudication. It is picking a number.
Qualification Review
Every subcontractor quote should be reviewed for qualifications: explicit exclusions, assumptions, caveats, and conditions attached to the price.
Common qualifications include:
- Exclusions of specific elements of work
- Programme assumptions (start date, duration, uninterrupted access)
- Design responsibility caveats
- Payment term requirements that differ from the main contract
- Escalation clauses or material cost allowances
Each qualification should be assessed for commercial impact. Some are minor and can be accepted. Others represent significant risk that needs to be resolved before award. A qualification that shifts design liability to the main contractor, for example, is not a minor administrative point.
Commercial Risk Assessment
Beyond scope and qualifications, each bidder should be assessed for commercial risk. This includes:
Financial standing. A subcontractor who is financially stretched may not be able to sustain the works at their tendered price. Credit checks and references are a standard part of due diligence for significant packages.
Capacity and resource. Can the subcontractor actually resource the job at the programme dates required? A low price from a subcontractor who cannot mobilise on time is not a saving; it is a programme risk.
Experience on comparable works. Has this subcontractor done similar work to a similar standard on comparable projects? References from previous clients are a legitimate part of the evaluation.
Pricing credibility. Is the subcontractor's price credible against the estimated cost? A quote that is substantially below the estimate should prompt a clarification, not an immediate award. Either the estimator missed something or the subcontractor has.
Comparison on a Like-for-Like Basis
Once scope has been reconciled and qualifications reviewed, the quotes should be compared on an adjusted basis. The adjusted figure for each bidder is their tendered sum, plus or minus the value of scope items that differ between quotes, plus or minus the commercial value of any unresolved qualifications.
This adjusted comparison is the meaningful comparison. The raw tendered sums are not comparable until the scope has been aligned.
The comparison should be documented in an adjudication schedule showing each bidder, their raw price, the adjustments made, the adjusted price, and the commercial risk rating. This document becomes the basis of the award recommendation and the record of how the decision was made.
The Award Recommendation
The output of a bid adjudication should be a written award recommendation that sets out:
- Which subcontractor is recommended for award and why
- The tendered price and any agreed adjustments
- A summary of how qualifications have been resolved
- Any conditions attached to the recommendation (references to be obtained, design warranties to be provided)
- The authority level required to approve the award
The recommendation should be reviewed and approved before the subcontract order is placed. For significant packages, this may involve commercial director sign-off. The approval process should match the authority levels defined in the project's commercial governance framework.
StoneRise's commercial management software provides a structured bid adjudication workflow: multi-bidder comparison, scope reconciliation tools, qualification tracking, and a formal award recommendation with approval routing. Awards flow directly into the subcontract order creation process, maintaining a complete audit trail from tender to order. For related guidance on subcontract commercial management, see our article on subcontractor variation management.
After the Award: Setting the Subcontract Up Correctly
A good adjudication is only as valuable as the subcontract it produces.
The scope agreed during adjudication should be reflected precisely in the subcontract order. Any qualifications that were resolved during the adjudication process should be explicitly addressed in the order. Any items that were excluded should be noted, so the commercial team knows from day one what is not included.
A subcontract order that does not reflect the adjudicated position leaves the project exposed from the start. The time spent on a thorough adjudication is wasted if the order itself contains ambiguities that the adjudication resolved.
Conclusion
Bid adjudication is not a compliance exercise. It is one of the most commercially significant activities in the subcontract procurement process.
The decisions made at award stage, about scope, about qualifications, about which subcontractor gets the job, shape the commercial outcome of the project before a single brick is laid. A poor adjudication does not just risk the subcontract going wrong; it makes a worse outcome more likely from the moment of award.
The commercial teams that run thorough adjudications are not being cautious. They are being commercially astute. The time invested in a proper evaluation is consistently less than the time spent resolving the problems that poor evaluation creates.
Run Bid Adjudications in StoneRise
StoneRise gives commercial teams a structured bid adjudication tool: multi-bidder comparison, scope reconciliation, qualification tracking, and formal award approval built into the subcontract procurement workflow.
FAQ: Bid Adjudication in Construction
What is bid adjudication in construction?
Bid adjudication is the structured process of evaluating competing subcontractor or supplier tenders before making an award. It involves reconciling scope between bidders, reviewing qualifications, assessing commercial risk, and comparing quotes on a like-for-like adjusted basis. The output is a formal award recommendation with an audit trail.
Why is the lowest quote not always the best choice?
A lower quote may reflect a genuine efficiency or pricing advantage. It may also reflect missing scope, unsustainable pricing, or financial instability in the bidder. Without a proper adjudication, you cannot distinguish between the two. Awarding to a subcontractor who has priced incorrectly or excluded significant scope items typically costs more to resolve than the saving on the award price.
What is scope reconciliation in bid adjudication?
Scope reconciliation is the process of comparing each subcontractor's quote against the enquiry documents and against each other to identify what has and has not been included. It adjusts the tendered prices to reflect a common scope baseline, so that the comparison is between equivalent offers rather than different ones.
What are qualifications in a subcontractor quote?
Qualifications are explicit exclusions, assumptions, or conditions attached to a subcontractor's tendered price. They might include programme assumptions, design responsibility caveats, payment term requirements, or exclusions of specific work elements. Every qualification should be reviewed for commercial impact and resolved before the award is made.
How should the bid adjudication process be documented?
The adjudication should produce a written comparison schedule showing each bidder's raw price, scope adjustments, adjusted price, and commercial risk assessment, along with a formal award recommendation. This documentation serves as the basis for the award approval and the commercial record of how the decision was made, which is important if the subcontract is later disputed.
