How to request repayment when a UK building contractor leaves paid work unfinished

If a UK building contractor stops or abandons paid work, you can usually insist they finish the job or seek a refund — the Consumer Rights Act 2015 gives you statutory remedies for services carried out without reasonable care and skill. Start by documenting what happened, make a clear written demand to finish or repay, consider mediation, and only bring a money claim in court if the trader refuses to co-operate. The practical sequence below explains when to expect a full refund, when a price reduction is likelier, and how to prepare evidence for a formal claim.

What rights you have and what they mean

Under the Consumer Rights Act 2015 a service must be performed with reasonable care and skill. If a builder stops partway through, you are entitled to one of three remedies depending on the facts: a repeat performance (the contractor finishes or fixes the work), a price reduction (compensation for partial or poor work), or in some cases a refund for work not carried out. The statute also prevents a contractor from lawfully contracting out of these rights. For the legal text and an explanation of the services regime, see the Consumer Rights Act 2015 guidance for businesses and consumers on what the law requires (Consumer Rights Act 2015).

Why this matters in practice: if the contractor did only a small portion of the job before leaving, a court is likelier to order a refund for sums paid for incomplete work. If they did significant work you accepted, a court may prefer a price reduction that reflects the value lost.

Immediate practical steps: document, communicate, and set a deadline

1. Stop and document. Take dated photos of all unfinished work, keep the written contract or estimate, and gather payment records (bank transfers, card receipts). Save text messages, emails and notes of verbal conversations. Citizens Advice highlights that evidence is often decisive in consumer disputes about home improvements (Citizens Advice - Problem with home improvements).

2. Decide whether you want completion or a refund. If you still want the work finished, say so — courts expect you to give traders a chance to fix things unless you made clear that timely completion was essential. If completion is impractical or you don’t trust the contractor, ask for a refund (full or partial depending on work done).

3. Send a firm written request. Put your position in writing: state what was agreed, how much you paid, what was left unfinished, and give a reasonable deadline to finish or refund (for example 14 days unless the situation requires urgency). Explain that you will pursue formal remedies — mediation or a court claim — if they do not respond. Keep the letter or message record and use recorded delivery if you post a paper letter.

A clear, time‑limited demand helps: it shows you attempted to resolve the dispute before escalating and provides a factual basis if you later go to court.

When mediation or ombudsman schemes help — and when to skip them

Mediation is often quicker and cheaper than court. GOV.UK recommends considering mediation as part of a dispute resolution strategy, and courts may offer or refer parties to mediation when you start proceedings (Make a court claim for money).

Use mediation when the contractor is reachable and there is a realistic prospect of a negotiated settlement (for example a partial refund plus another contractor finishing). If the contractor is unresponsive, has disappeared, or you need an urgent fix (safety, weather damage), mediation will not be effective and you should prepare for formal action sooner.

Preparing for court: what to expect and what evidence matters

If the trader refuses to cooperate, you can make a money claim in the county court (small claims track for lower-value disputes in England & Wales). GOV.UK explains how to start a money claim and points out that procedures differ in Scotland and Northern Ireland, so check the correct route for your jurisdiction before filing (Make a court claim for money).

What you must prove: the contract terms, payments made, and the extent of unfinished or defective work. Useful evidence includes:

• The written contract, estimate or scope of works.
• Receipts and bank/card statements showing payment.
• Photographs dated or timestamped showing the unfinished work.
• Copies of your written demand(s) and any replies.
• A contemporaneous diary of events (dates, names, conversations).

What courts commonly award: if a contractor can still reasonably finish the job, the court may order them to do so. If finish is impractical or unreasonable, the court may award a price reduction or require repayment for the unperformed portion. Exact sums are fact-sensitive; for complex loss or substantial sums seek solicitor advice. The statutory remedies and business guidance explain how those choices are framed under the law (Consumer Rights Act 2015).

A realistic example

Imagine you paid a builder £6,000 to replace a kitchen. After three weeks they stop, having only removed the old units and not fitted new ones. You want your money back. Because the majority of the contracted work remains undone and you did not accept the incomplete work, you can reasonably demand a refund of most of the price (allowing for the value of the demolition already carried out). If the contractor refuses, a small claim could recover the unpaid portion; a court would weigh the value of the work done against the contract price.

If instead the contractor had installed units poorly and you had accepted some of the work, the remedy would likely be a price reduction to reflect the defects rather than a full refund.

Limitations, timing and when to get legal help

Limitation periods vary: GOV.UK guidance on refunds and returns notes that many claims have long limitation periods (for example up to six years in much of the UK for contract claims, five years in Scotland) but exact rules depend on the claim and jurisdiction (Accepting returns and giving refunds: the law). Don’t delay evidence collection; time weakens your position.

If the sums involved are substantial, the facts are disputed, or the contractor counterclaims, obtain specialist advice. For straightforward consumer cases, Citizens Advice can help with next steps and local Trading Standards may have template letters and advice (Citizens Advice - Problem with home improvements).

For consumers who prefer a professional demand letter prepared from their information, BeforeSuit's professional demand-letter preparation service offers a way to draft a clear, businesslike demand — this can be one step in a wider strategy that also includes mediation and court options.

Next practical actions: stop further payments, gather your contract and proof of payment, send a dated written demand with a short deadline, and consider mediation before court. If the contractor remains uncooperative, prepare your evidence and follow the GOV.UK guidance to start a money claim in the appropriate jurisdiction (Make a court claim for money).