Cowboy builders cost UK homeowners millions each year in botched work, unnecessary repairs, and outright fraud. Protecting yourself starts with knowing the warning signs and taking preventative steps.
Major warning signs
Cold calling at your door
Reputable builders do not need to knock on doors to find work. Be especially wary of anyone offering a “special discount because we are in the area”.
Demanding large upfront payments
A small deposit (10-25%) is normal. Demanding 50% or more before work begins is a major red flag.
No written contract
Always insist on a written contract detailing scope, timeline, payment schedule, and guarantees. Verbal agreements are unenforceable.
Pressure tactics
“This offer expires today” or “I need a decision now” are classic pressure tactics. Take your time.
No fixed address
Cowboys often use mobile numbers only and PO boxes. A legitimate business has a fixed address and landline.
Unwilling to show credentials
If they cannot show insurance certificates, qualifications, or trade body memberships, walk away.
Protective steps every homeowner should take
- Always use a vetted contractor from a trusted source
- Check insurance certificates are current and valid
- Verify trade body membership directly with the organisation
- Visit past projects and speak to previous clients
- Never pay the full amount until work is completed satisfactorily
- Use a staged payment plan tied to milestones
- Take dated photos before, during, and after the project
- Keep all paperwork, emails, and receipts
What to do if you have been caught out
If you believe you have hired a rogue trader, stop all payments immediately. Document everything with photos and written records. Contact Citizens Advice, your local Trading Standards office, and consider legal action for significant losses.