How to Find a Good Builder in the UK

Practical advice on finding a reliable, competent builder for your project, from sourcing recommendations to checking credentials.

Finding a good builder is one of the most important decisions you will make on any building project. A reliable builder delivers quality work on time and on budget. A poor one can cause delays, cost overruns and endless stress. Here is how to find a good one.

Where to Look

Personal Recommendations

The most reliable way to find a builder is through word of mouth. Ask friends, family, neighbours and colleagues who have had work done recently. If they were happy with their builder, that is a strong signal. Ask if you can visit and see the finished work.

Your Architect

If you are working with an architect, they will often have a shortlist of builders they have worked with before and can recommend. Architects see builders' work on site and know which ones deliver quality.

Trade Body Members

Look for builders who are members of recognised trade bodies:

Federation of Master Builders (FMB) - members are vetted and inspected
National Federation of Builders (NFB)
Checkatrade - verified reviews from previous customers
TrustMark - government-endorsed quality scheme
Which? Trusted Traders - assessed and endorsed by Which?

Planning Signal

Search for building contractors who have worked on projects near you. You can see what types of projects they have been involved with and find contact details.

How to Vet a Builder

Check Their Credentials

Companies House - verify the company is registered and check its history
Insurance - ask for proof of public liability insurance (minimum £2 million) and employers' liability insurance if they have employees
VAT registration - legitimate businesses with turnover above the VAT threshold should be VAT registered
Relevant qualifications - NVQ, City & Guilds or CSCS cards

View Previous Work

Ask to see 2-3 completed projects similar to yours. A good builder will be proud to show their work. If possible, speak to the homeowners about their experience.

Check References

Ask for references from recent clients and actually contact them. Ask about:

Quality of workmanship
Timekeeping and reliability
Communication and problem-solving
How they handled any issues or unexpected problems
Whether the final cost matched the quote

Getting Quotes

Get written quotes from at least 3 builders. Make sure each builder is quoting for exactly the same scope of work. Provide them all with the same drawings and specification. Be wary of any quote that is significantly lower than the others - it may indicate the builder has misunderstood the scope, intends to cut corners, or plans to inflate the price later.

What a Good Builder Looks Like

Returns calls and emails promptly
Provides a detailed written quote, not just a ballpark figure
Has a clear start date and realistic timeline
Is happy to put a written contract in place
Has relevant insurance and can provide proof
Is transparent about who will be on site day-to-day
Is willing to agree a fair payment schedule (not 100% upfront)