Concrete foundations keep your extension, conservatory or other new building stable for years to come. It's important to hire qualified extension builders to lay your foundations, but how much will it cost in B21?

Concrete foundations range from the £5,786 (Renka based in B19) to £7,050 (Sperin Interiors based in B66) in B21.
Comparing extension builders estimates for laying concrete foundations gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.

Find out the exact cost of laying concrete foundations in B21 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.