From £6,450
Greater London, NW10
Experienced extension builder ready to quote for your work. IM Construction is the best extension builder in NW10. No obligation free quotes and ma...
From £7,866
Over 20 years experience
Client focussed and driven
Personal planning and completion of work
Warranty ...
From £6,634
Harlesden, NW10
Need an Extension Builder in NW10? C & I has been helping local clients (5 mile radius) with their extension buildering jobs for many years. Get a ...
From £6,290
T&M Property Services was established in 2000. We are quality, friendly affordable general builders. We undertake large projects like loft conversi...
From £6,570
Harlesden, NW10
Need to find an Extension Builder near you for all your extension buildering work?
Byron Elie provides a local, trusted extension builderin...
From £6,154
Harlesden, NW10
V.S.P is a trusted extension builder serving customers in NW10 and the surrounding area. Contact us to today to get a competitive quote for extensi...
From £6,402
SDM Services is an established extension buildering business in NW10. We come highly recommended and provide competitive quotes for your work.
...From £6,394
Harlesden, NW10
Experienced extension builder ready to quote for your work. Khetani Builders (UK) Ltd is the best extension builder in NW10. No obligation free quo...
From £6,330
Miyard Ltd is a trusted extension builder serving customers in NW10 and the surrounding area. Contact us to today to get a competitive quote for ex...

Concrete foundations range from the £6,154 (V.S.P based in NW10) to £7,866 (GasHeat based in NW10) in NW10.
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 NW10 by posting a job with HaMuch. We will send it to extension builders who can give you a detailed quote.
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 - £17,814

Two storey extension - £88,470

Build a timber frame extension - £26,314

Build a swimming pool - £81,314

Single storey extension - £61,272

Side return extension - £45,028

Install an RSJ - £2,514

Outbuilding - £10,314

Build a Mansard loft conversion - £52,314

Loft conversion - £36,690

Build a kitchen extension - £42,314

Hip to gable loft conversion - £42,314

Granny annexe - £87,314

Garden office - £10,314

Convert a Garage - £16,314

Garage - £18,814

Build a flat roof extension - £22,314

Build a dormer loft conversion - £42,314

Concrete foundations - £6,564

Convert a bungalow loft - £29,314

Convert a basement - £41,028