Trades & Construction · Practical UK guide
Builder Customer Refusing Final Payment: Check the Work and Terms
Check the agreed scope, variations, completion evidence and any snagging list. This guide walks through the documents to check, the conversation to have and the action to record before moving to a firmer stage.
Start with the underlying agreement
Locate the original quote or contract, purchase order where relevant, invoice issue date, agreed due date and a record of what was actually provided. A payment request is strongest when both sides can trace the amount and transaction without guessing. If any of those details are uncertain, clarify them before asserting a debt or a particular late-payment right.
A practical step-by-step approach
1. Check the facts
Check the agreed scope, variations, completion evidence and any snagging list.
Compare the figure with receipts, credits, partial payments and the agreed date. Keep the supporting document where you can attach it if questioned.
2. Choose an appropriate approach
Ask what work the customer says remains unfinished or defective.
Match the tone to the existing relationship and whether the customer has raised a genuine objection. A dispute requires a reasoned response, not simply stronger pressure.
3. Make a specific request
Keep invoices and change orders alongside dated photographs.
Use a date and a named next step. An invoice reference and a clear outstanding balance help the recipient resolve the issue rather than sending you to another department.
4. Document the outcome
Construction-specific payment procedures may apply; seek tailored advice when they do.
Note when you sent your message, who received it and what was promised. If the facts change, update your records before writing again.
A professional message you can adapt
Subject: Payment follow-up — invoice [number]
Hello [name],
I’m following up on invoice [number] for [amount], which was due on [date] under our agreed terms. Could you confirm whether payment has been arranged and, if not, the date it will be made?
If you need any supporting information or believe an item needs correcting, please let me know so we can resolve it promptly.
Kind regards,
[your name]
What to keep on file
- The original agreement, quote and accepted scope of work.
- The invoice and any corrected versions or credit notes.
- Delivery, time, handover or approval evidence.
- Dated reminders and any payment promises or disputes.
- An up-to-date reconciliation of the balance, including partial payments.
Before escalating
Check whether the customer is disputing the work, unable to pay, waiting for internal approval or simply missing information. UK business-to-business late-payment rules can allow statutory interest and fixed compensation in qualifying circumstances, but they are not automatic for every invoice or consumer transaction. A formal Letter of Claim can also involve specific procedural steps; an ordinary email template is not automatically compliant.
Where the debt is substantial, disputed or connected with construction, insolvency or consumer contracts, consider guidance specific to the agreement before making legal threats.
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