Builders

How to Chase an Unpaid Invoice as a Builder

Why builders' clients pay late, what to send at each stage, and your options if they still don't pay.

Why builders get paid late

  • Disputes over snagging hold up the final payment.
  • Variations agreed verbally are disputed later.

How to get paid: advice for builders

  • Agree a written payment schedule tied to clear stages before you start.
  • Get every variation confirmed in writing (a text or email is enough) before doing the work.
  • For construction contracts with businesses, the Housing Grants, Construction and Regeneration Act gives rights to stage payments, payment notices and to suspend work for non-payment. Domestic homeowner contracts are mostly excluded.

A chasing timeline that works

  1. 3 days before due: a friendly heads-up.
  2. 1 day overdue: a polite reminder — a text often works well with private clients (write one).
  3. 7–14 days overdue: a firm reminder and a phone call.
  4. 30 days overdue: a final notice with a deadline.
  5. Still unpaid: a letter before action, then a small claim if needed.

Your legal options

It depends who the client is. For business clients, you can add statutory interest (8% + base rate) and £40–£100 fixed compensation under the Late Payment Act — calculate it here. For private clients, that Act doesn't apply: only charges in your agreed terms, if fair, can be added. Before court action against an individual (including a sole trader) you must give 30 days' notice under the Pre-Action Protocol for Debt Claims.

Other professions

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