How to Avoid Cowboy Builders
Red flags to watch for when hiring a builder, how to protect yourself, and what to do if things go wrong.
Cowboy builders - unscrupulous or incompetent tradespeople - cost UK homeowners millions of pounds every year. Knowing the warning signs can help you avoid becoming a victim.
Red Flags Before You Hire
- Unsolicited doorstep offers - "We're working next door and noticed your roof needs fixing" is a classic approach. Reputable builders do not cold-call at your door
- No written quote - a verbal agreement or a scrawled figure on the back of a receipt is not adequate
- Pressure to decide quickly - "This price is only good for today" is a high-pressure sales tactic
- Large upfront payment - asking for 50% or more before any work starts is a major warning sign
- No fixed address or landline - mobile-only contact makes them harder to trace if things go wrong
- Cash-only, no VAT - while small sole traders may legitimately be below the VAT threshold, asking to be paid cash with no invoice is a red flag
- No insurance - unable or unwilling to show proof of public liability insurance
- No references - reluctance to provide contact details for previous clients
Red Flags During the Work
- Constantly requesting extra payments for work that should have been in the original quote
- Disappearing for days without explanation
- Substandard materials substituted for what was specified
- Rushing through work without care for quality
- No building control inspections being arranged when required
- Aggressive or defensive when you raise concerns about quality
How to Protect Yourself
Before Hiring
- Get 3 written quotes and compare them carefully
- Check trade body membership (FMB, Checkatrade, TrustMark, Which? Trusted Traders)
- Verify their company registration on Companies House
- Ask for and check references - actually phone previous clients
- View completed projects in person if possible
- Verify insurance - ask for a copy of their public liability policy
During the Project
- Use a written contract - the JCT Homeowner Contract is widely used
- Agree a staged payment schedule linked to completed milestones
- Never pay for work in advance of it being completed
- Retain 5% of the total cost for 3-6 months after completion (retention)
- Keep records of all communications, agreements and payments
- If you have an architect, have them inspect the work at key stages
What to Do If Things Go Wrong
- Raise it directly with the builder in writing, clearly describing the problem
- Allow a reasonable time for them to put it right
- If they are a member of a trade body, file a complaint - most have dispute resolution processes
- Contact Citizens Advice for guidance on your consumer rights
- Consider mediation before resorting to legal action
- As a last resort, you can take a claim to the small claims court (for claims up to £10,000) or pursue a county court claim for larger amounts
Your Legal Rights
Under the Consumer Rights Act 2015, any building service must be:
- Carried out with reasonable care and skill
- Completed within a reasonable time (if no specific deadline was agreed)
- Provided at a reasonable price (if no price was agreed in advance)
If the builder fails to meet these standards, you have the right to ask them to redo the work or claim a price reduction.