From £17,988
in the city decorators & design is a trusted extension builder serving customers in Hampstead and the surrounding area. Contact us to today to get ...
From £17,732
Hampstead Greater London, N2
Experienced extension builder ready to quote for your work. Aqua Tierra Sol is the best extension builder in Hampstead. No obligation free quotes a...
From £17,852
Builders R US are passionate about doing a great job delivered on time and on budget. Our experienced team are friendly, reliable, and trustworthy ...
From £17,852
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,524
Need an Extension Builder in Hampstead? Ally Electrical Services Ltd has been helping local clients (5 mile radius) with their extension buildering...
From £17,580
Trusted and professional extension builder in Hampstead. Experienced in all extension buildering work and keeping within budget and on quote. Arund...
From £17,692
SJ Expert Building Services are here to help customers who need an Extension Builder in Hampstead. We offer a competitive rate to complete all your...
From £17,492
Trusted and professional extension builder in Hampstead. Experienced in all extension buildering work and keeping within budget and on quote. HAADA...
From £17,756
Relax... you have found a reliable extension builder in Hampstead. PLAN C - Design. Build. Create is a friendly and reliable company based in Hamp...

Underpinning ranges from £17,492 (HAADAM Ltd. based in N10) to £17,988 (In the city decorators & design based in N2), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Hampstead by posting a job with HaMuch and we will send it to extension builders in Hampstead.
"Underpin a building" - N10, job posted 01/01/70
Whether you’re looking to extend your kitchen with a side return extension or you want to convert your basement into a liveable space, read our cost guides to get an idea of how much each project costs before getting a more accurate quote from our database of reliable tradespeople.

Underpin a building - £17,726

Two storey extension - £88,340

Build a timber frame extension - £26,226

Build a swimming pool - £81,226

Single storey extension - £59,528

Side return extension - £44,047

Install an RSJ - £2,426

Outbuilding - £10,226

Build a Mansard loft conversion - £52,226

Loft conversion - £35,873

Build a kitchen extension - £42,226

Hip to gable loft conversion - £42,226

Granny annexe - £87,226

Garden office - £10,226

Convert a Garage - £16,226

Garage - £18,726

Build a flat roof extension - £22,226

Build a dormer loft conversion - £42,226

Concrete foundations - £6,476

Convert a bungalow loft - £29,226

Convert a basement - £40,047