Who Can Review and Validate a Construction Contract Claim?
If you are a QS or commercial manager with a dispute forming on a live project, you need a practical answer, not a theoretical one. The short version: most construction contract claims are reviewed and validated by a QS or commercial manager. A construction lawyer is brought in for specific questions about governing law, condition precedent interpretation, or adjudication preparation. AI handles the initial contract analysis, notice tracking, and obligation extraction that used to consume most of the review time.
The right combination depends on the nature of the claim, the stage it has reached, and the contract standard you are working under. This guide sets out when each type of reviewer adds value and how they work together in practice.
When You Need a QS or Commercial Manager
The QS is the primary reviewer and validator of a construction contract claim. This is not because the QS is cheaper than a lawyer, although the cost difference is significant. It is because the core of a construction claim is a commercial and technical question, not a legal one.
A delay and disruption claim requires someone who understands programme analysis: how to read a time impact analysis, how to link cause and effect between an instruction and a delay, how to identify concurrent delay, and how to value the prolongation costs that resulted. That is a QS skill. A lawyer reading the same documents can tell you whether the notice was given in time and whether the claim is admissible. They cannot tell you whether the 14-day programme float absorbed the delay or whether the Contractor's own inefficiency contributed to the critical path shift.
A variation claim requires someone who understands measurement, the valuation hierarchy under the contract, and what rates from the Bill of Quantities apply or do not apply to the varied work. A lawyer can review whether the Engineer's instruction was valid and whether the Contractor complied with the variation quotation procedure. The QS values the claim.
A loss and expense or prolongation cost claim requires an understanding of cost records, site staff allocation, preliminaries build-up, and the evidential standard required to support the claim in adjudication or arbitration. Building that evidential record is a QS function.
The QS or commercial manager should be the lead reviewer on any claim at the following stages: the initial assessment of whether a claim exists, the quantification of the claim, the preparation of the supporting submissions and correspondence, and the day-to-day management of the claim as it progresses through the contract's dispute resolution procedure.
Where a QS should always involve a lawyer is on the question of whether the notice was given correctly and in time. Notice conditions precedent are the most common cause of valid claims being lost. The QS knows the claim is worth pursuing. The lawyer tells you whether procedural compliance means you still have a right to pursue it.
When You Need a Construction Lawyer
A construction lawyer becomes essential at specific points in a claim's lifecycle, and at those points their involvement is not optional. Using a QS to answer questions that require legal analysis is as inefficient as using a lawyer to value a variation.
Condition precedent analysis. The most commercially dangerous provisions in FIDIC, NEC, and JCT contracts are the notice conditions precedent that extinguish valid claims when procedural requirements are missed. Under FIDIC Clause 20, the 28-day notice deadline is a condition precedent: missing it loses the claim entirely, regardless of its merits. Under NEC Clause 61.3, the eight-week compensation event notification period has the same effect. A QS can read the clause. Whether the notice that was given satisfies the contractual requirement, given the specific facts of when awareness arose and what was notified, is a legal question. Get a lawyer to answer it before you build a claim on a foundation that may not hold.
Governing law interpretation. A FIDIC contract governed by UAE law and one governed by English law can use identical wording and produce different outcomes in a dispute. Local courts interpret construction contract provisions differently, and the body of case law that informs how specific clauses work in practice varies significantly by jurisdiction. For any claim where the governing law is not English law, jurisdiction-specific legal advice is not optional.
Adjudication and arbitration. Once a dispute moves into formal proceedings, a construction lawyer is required. Adjudication submissions, responses, and the conduct of the adjudication itself are legal proceedings in substance even when they involve primarily commercial and technical questions. An experienced construction lawyer who knows the adjudicator's preferences and the strategic dynamics of the process adds value that no QS or AI tool can replicate.
Novel clause interpretation. Bespoke contracts sometimes include provisions that have not been tested in case law and whose application in a specific factual scenario is genuinely uncertain. Where the legal interpretation of a clause is the thing standing between a successful and unsuccessful claim, legal advice on that specific question is essential.
Outside these specific areas, a lawyer's involvement in a construction claim is often not cost-effective. Paying a construction lawyer to review cost records, build a programme analysis, or prepare a quantum schedule is the wrong use of their skills and your budget.
When AI Handles the Heavy Lifting
AI has changed the front end of the claim review process significantly. The tasks that used to consume the first 20 to 30 percent of a claim review are now completed in minutes rather than hours.
Initial contract analysis. Before you can assess a claim, you need to understand exactly what the contract requires: the notice provisions, the claims procedure, the entitlement triggers, and any Particular Conditions or Z clause modifications that change the standard form position. For a FIDIC, NEC, or JCT contract, running this initial analysis manually takes an experienced commercial manager 3 to 5 hours. A construction-specific AI tool completes it in under 2 minutes, with output that identifies every deviation from the standard form and explains the commercial implication.
Notice deadline tracking. The most common way valid construction claims are lost is through missed notice deadlines. AI extracts every notice obligation from the contract, maps it to the relevant clause, and builds a calendar. For a QS managing multiple live projects, this capability directly reduces the risk of procedural failure under time pressure.
Document cross-referencing. Many construction claims involve conflicts between a main contract and a subcontract: the main contractor is in time under the main contract notice provisions but time-barred under the subcontract, or the insurance requirements passed down in the subcontract do not match what the main contract requires. AI reads both documents and identifies the conflicts. That task manually requires reading both contracts simultaneously and tracking every material provision across them, which is time-consuming and error-prone.
Draft notice preparation. When a compensation event occurs, a variation is instructed, or a delay event triggers a claims procedure, the notice must be drafted promptly and correctly. AI drafts the notice from the contract terms, with the correct clause references, required content, and deadline information. The QS then reviews and approves before sending.
For a comprehensive overview of how AI handles contract analysis across FIDIC, NEC, JCT, and AIA, the complete guide to AI construction contract review covers the full process in detail.
How Most Claims Are Actually Reviewed in Practice
On a well-run live project, the process looks like this.
The QS or commercial manager identifies that a claim event has occurred: a late instruction, an unforeseeable ground condition, an Employer-caused delay, or a variation to scope. The first action is to check the notice requirements under the specific contract and confirm that notice has been given or that it is given immediately. On a FIDIC contract, that means checking Sub-Clause 20.1 or Sub-Clause 20.2.1 and the Particular Conditions to confirm the period that applies. On an NEC contract, it means checking Clause 61.3.
AI handles the contract check and generates the notice draft. The QS reviews it, confirms it accurately describes the event and the claimed entitlement, and sends it. The clock is stopped.
The QS then builds the substantive claim: the programme analysis, the cost records, the quantum. This is the core professional work. It takes as long as it takes, and the quality of this work is what determines whether the claim succeeds.
At the point where the contractual dispute procedure is engaged, either because the claim has been rejected or because it has not been agreed within the timeframe the contract prescribes, a construction lawyer is brought in. The lawyer reviews the procedural record, confirms that all notice requirements were met, advises on the strength of the claim in the relevant jurisdiction, and if the claim proceeds to adjudication or arbitration, manages that process.
For the FIDIC Clause 20 notice requirements in detail, including what constitutes valid notice and how Particular Conditions modify the standard position, see the guide to FIDIC Clause 20 notice requirements.
This division of labour, QS for quantum and commercial management, AI for contract analysis and notice administration, lawyer for legal questions and formal proceedings, is how claims are managed effectively in practice at Tier 1 and Tier 2 contractors. It is not always how they are managed, but it is how they should be.
How Lexilio Helps with Claim Review
Lexilio is built for the part of claim review that commercial teams do, not the part that lawyers do. It accelerates and systematises the contract analysis, notice tracking, and document cross-referencing that forms the foundation of every claim.
When a claim event occurs on a project using Lexilio, the process starts from a position where the contract has already been reviewed: every notice obligation has been extracted, every deadline is in the calendar, and every deviation from the standard form is documented in the risk report. The QS is not starting the notice analysis from scratch. The work has been done.
For teams working with FIDIC contracts in the UK, UAE, or GCC, Lexilio's analysis covers FIDIC Red, Yellow, and Silver Book in both the 1999 and 2017 editions, with Particular Conditions analysis that identifies every modification to the standard claims procedure before the project starts. For NEC projects, Lexilio reads Z clauses and identifies modifications to the Clause 60 compensation event scope and the Clause 61 notification procedure. For JCT, it covers the loss and expense mechanism and the Relevant Matters that trigger entitlement.
The notice drafting feature is directly relevant to claim review: when an event occurs, Lexilio drafts the notice using the correct clause references and the deadline that applies under the specific contract. On projects where multiple events are happening simultaneously, this reduces the administrative burden on the QS and the risk of a notice being missed under time pressure.
Lexilio does not replace the QS's commercial judgment or the lawyer's legal advice. It handles the contract intelligence layer so that both can focus on the work that requires their specific expertise.
Frequently Asked Questions
Can a QS review and validate a construction contract claim?
Yes. A QS or commercial manager is the appropriate person to review and validate the substantive elements of a construction contract claim: the entitlement under the contract terms, the programme analysis, the cost records, and the quantum. A construction lawyer is required for specific questions about condition precedent compliance, governing law interpretation, and formal dispute proceedings. The QS leads the claim; the lawyer advises on the legal questions that arise within it.
Do you need a construction lawyer to submit a claim?
Not to submit an initial claim, no. Most construction contract claims are submitted by QSs or commercial managers without direct legal involvement in the drafting stage. Legal advice becomes essential when the notice validity is disputed, when the claim proceeds to adjudication or arbitration, or when the governing law raises jurisdiction-specific interpretation questions. Early legal involvement at the notice stage is valuable on any claim where the condition precedent compliance is not straightforward.
How does AI help with construction contract claim review?
AI accelerates the foundation work: analysing the contract to confirm what the notice requirements are, extracting every obligation and deadline, identifying cross-document conflicts between a main contract and subcontract, and drafting the initial notice. These tasks used to take a commercial manager several hours for each new contract. Construction-specific AI tools complete them in minutes. The QS then applies judgment to the output: assessing entitlement, building the quantum, and managing the claim through the contract's dispute resolution process. AI also reduces the risk of procedural failure by tracking notice deadlines across multiple live projects simultaneously.
Is the claim review process different for FIDIC and NEC contracts?
Yes, materially. Under FIDIC, the claims procedure is governed by Clause 20 (2017 edition: Sub-Clause 20.2), with a 28-day condition precedent notice period that runs from when the Contractor became aware of the event. The Engineer plays a central role in the initial assessment. Under NEC, the compensation event notification under Clause 61.3 has an eight-week condition precedent period, and the Project Manager's role in assessment is defined by the Clauses 62 to 65 assessment procedure. The underlying principle is the same: missing the notice deadline extinguishes the entitlement. But the specific timelines, the triggers, and the assessment mechanics are different for each standard. AI review tools trained on both standards identify the correct procedure for each contract.
How long does claim review take?
It depends on the nature and size of the claim. The initial contract analysis to confirm entitlement and notice compliance, using AI, takes under 2 minutes for the automated output and 30 to 60 minutes of QS review time to reach a conclusion. Building the quantum on a delay and disruption claim on a large project can take weeks or months, depending on the quality of the contemporaneous records and the complexity of the programme analysis. The claim management process from the first notice to adjudication or settlement on a contested FIDIC or NEC claim typically runs from six months to two years on major projects. The front-end contract analysis and notice management is where AI compresses the timeline most significantly.
Lexilio is the construction commercial intelligence platform for FIDIC, NEC, JCT, and AIA contracts.
