Start by speaking to the tradesman
When work goes wrong or falls short of what you agreed, your first step should be to raise the problem directly with the tradesman. Many issues stem from misunderstandings or can be fixed without much fuss if you give them a fair chance to respond.
Be specific about what has gone wrong. Point to the areas of work that are substandard, unfinished or different from what you originally agreed. Many tradesmen prioritise resolving complaints to maintain their reputation.
If speaking in person or over the phone does not get results, put your complaint in writing. A letter or email creates a record of what you raised and when. Set a reasonable deadline for a response or for the work to be corrected. Keep copies of everything you send, including any photos of the problem.
Where the tradesman works for a company, send your complaint to the head office as well as to the individual. This can sometimes speed things up, especially with larger firms that have formal complaints procedures.

Describe what a trader has said or done and find out whether it sounds like a scam.
Try our Spot a Scammer free, here on this site →When talking gets you nowhere
If the tradesman ignores your complaint, disputes it unreasonably or simply disappears, you have several options for escalating the matter. The right route will depend on the type of problem and what you are hoping to achieve.
For issues involving dishonest or misleading conduct, report the trader through the Citizens Advice consumer helpline. Citizens Advice then passes your information to local Trading Standards teams, as you cannot contact Trading Standards directly. They handle problems such as traders who take payment but never complete work, those who misrepresent their qualifications, and businesses that use aggressive or misleading sales tactics.
Reports to Trading Standards help build a picture of rogue operators. While they may not resolve your individual case directly, they can investigate traders who attract multiple complaints and take enforcement action where laws have been broken.
For straightforward disputes over the quality of work or whether the tradesman stuck to the contract, you may need to consider legal action through the courts. You can use the small claims track, designed for straightforward cases, without needing a solicitor. In England and Wales, this typically covers claims up to £10,000, though you should verify the current limit and court fees on GOV.UK.
Before going to court, consider Alternative Dispute Resolution. ADR schemes offer a less formal way to settle disagreements, and some trade associations provide mediation services as part of their membership benefits.
Your situation may be slightly different. ask a question below ↓ and our editorial team will reply with our advice.
Other places to report or seek help
If the tradesman belongs to a trade association or accreditation scheme, report the problem to that body as well. Many schemes have their own complaints procedures and codes of practice. Being a member of a recognised body usually means the tradesman has agreed to meet certain standards, and the organisation may be able to mediate or apply pressure.
Common trade bodies include:
- Federation of Master Builders
- National Federation of Builders
- Gas Safe Register for gas work
- NICEIC or NAPIT for electrical work
- TrustMark, a government endorsed quality scheme
Check whether the tradesman is registered with any of these and look up their complaints process on the relevant website.
If the tradesman provided finance or you paid by credit card, your card provider may be able to help recover money under Section 75 of the Consumer Credit Act. This applies to purchases between £100 and £30,000. Your bank can explain whether your payment qualifies and how to make a claim.
For problems involving dangerous or illegal work, there may be specific regulators to contact. Unsafe gas work should always be reported to Gas Safe Register. Electrical work that does not meet regulations can be reported to your local building control office.
Protecting yourself in future
Dealing with an unreliable tradesman is frustrating, but it can also teach you what to look for next time. Before hiring anyone, check for membership of recognised trade bodies and look up reviews from multiple sources. Ask for written quotes rather than verbal estimates and get clear agreement on what is included.
Be wary of tradesmen who ask for large payments upfront, pressure you to make quick decisions, or cannot provide a business address. Paying in stages as work progresses gives you more control if problems arise.
Keep records of everything: quotes, invoices, photos of work at different stages, and any messages or emails. If something does go wrong, this evidence makes it much easier to pursue a complaint or legal claim.
Reporting unreliable tradesmen helps others avoid the same problems. Even if your own case cannot be fully resolved, your report may form part of a pattern that leads to action against persistent offenders.
I'd suggest putting your complaint in writing to Carsa directly, giving them a chance to respond. If you're not satisfied, the Motor Ombudsman and Trading Standards (via Citizens Advice on 0808 223 1133) can look into the sales practices. If finance was involved, the Financial Ombudsman Service may also be able to help. Citizens Advice can guide you on the best route for your situation.
Ask Trader Scams a question
Ask our editorial team a question and we will reply with our advice. Tell us as much about your situation as you can: the more detail you give, the more useful our answer can be.
You do not need to use your real name. Please do not include your full address, phone number, email address, or the names of other people. We may edit or remove identifying details for privacy and legal reasons.
Comments are moderated before publication.