A construction debt rarely comes with clean paperwork. When a contractor, subcontractor or supplier abroad stops paying against certificates, variations or a final account, the file that reaches us usually has years of site correspondence attached. Debt recovery for construction claims depends on sorting that correspondence before any demand goes out.
Most files fall into a small number of patterns. An interim payment certificate is issued and never paid. A final account is agreed on site but not settled once the project closes. Retention is withheld beyond the period the contract allows, or a variation is executed on an instruction that was never confirmed in writing. Subcontractor chains complicate all of this: a subcontractor may be told, formally or informally, that payment depends on the main contractor being paid first.
None of these situations is unusual, and none of them is automatically weak. What decides the claim is whether the paper trail supports the sum claimed, not how the dispute feels on site. Some of this work sits close to cross-border trade and logistics recovery, particularly where materials, plant or shipped components were part of the contract price.
The contract itself comes first: payment terms, retention clause, variation procedure and any dispute mechanism named in it. Applications for payment and the certificates issued against them show what was claimed and what was certified, which is often not the same figure. Instructions for variations, whether formal orders or site emails, establish whether extra work was authorised. Records of practical completion or handover fix the date from which retention and final account obligations start to run.
Where the works were supplied rather than only performed, ownership of unfixed materials can matter as much as the invoice. That question overlaps with retention of title claims, and we check it early rather than after a defence is filed. A file with a signed contract, a clear certificate history and dated site correspondence moves faster than one built on verbal instructions and memory.
Defects are the most common answer to a payment claim in this sector, whether or not they were ever raised on site before the invoice fell due. A contra-charge for remedial work, a claimed set-off for delay, or a dispute over whether a variation was properly instructed all follow the same pattern: the debtor accepts the works happened but disputes the value or the right to be paid in full. Pay-when-paid clauses appear frequently in subcontract chains and are read narrowly in most systems, but the wording of the specific clause decides that, not the general rule.
The insolvency of the party above the debtor in the chain is a separate and harder defence. If the main contractor has failed, a subcontractor may genuinely have nothing to pay from, which changes the claim from a payment dispute into a question about who else in the chain can be pursued. That distinction belongs with work on freight forwarding disputes, where the same chain-liability problem recurs.
We start with an assessment of the certificate history, the variation record and the defence likely to be raised, before any letter goes out. If the file supports it, a formal demand follows, sometimes paired with a structured pre-action review carried out through a pre-action debtor report so the client knows what stands behind the debtor before committing to the next stage. Where the contract names adjudication or arbitration, that route is usually faster than court and is assessed on its own terms.
A limitation period applies to construction claims in every system we work with, and for a payment or final account claim it is often shorter than the general commercial period. Waiting for a defect dispute to resolve on site before instructing us is the single most common reason a claim that was recoverable stops being recoverable, so we confirm the applicable period against the underlying contract and the relevant law before advising on limitation periods in cross-border claims rather than after.
We ask for the contract, the payment or applications history, any variation instructions and records of practical completion. A file missing all of these can still be assessed, but the assessment will say plainly where the gaps sit.
Unsigned variations are recoverable in some systems if the instruction can be shown by conduct or correspondence, and not in others where the contract requires written authorisation strictly. This is checked against the specific contract wording before we advise either way.
If the party above the debtor in the chain has been paid, that strengthens rather than weakens a claim against the debtor, since it removes the pay-when-paid defence. If instead that party has failed without paying anyone, the claim may need to be redirected up the chain.
A final account left unpaid does not sit still. Retention gets absorbed into other costs, the site closes and the people who signed the variations move to other projects, and the paper trail that would prove the claim today is harder to assemble every month it waits.