From £6,290
Greater London, N22
London Metropolitan Construction Ltd is and property refurbishment and renovation company based and operating throughout London undertaking new bui...
From £6,282
Need an Extension Builder in N22? A K Decoration & Building Serv has been helping local clients (5 mile radius) with their extension buildering job...
From £6,466
London, N22
Our building services company AF Builders & Decorators Ltd has 20 years of experience in the industry. Since then we have been helping customers in...
From £6,178
Need to find an Extension Builder near you for all your extension buildering work?
Elmfield Property Services provides a local, trusted ext...
From £6,330
London, N22
Fine Loft Construction are here to help customers who need an Extension Builder in N22. We offer a competitive rate to complete all your extension ...
From £5,778
We are reliable tradesmen delivering quality works with attention to detail
From £6,170
Wood Green, N22
Need to find an Extension Builder near you for all your extension buildering work?
OAKWOOD CONSTRUCTION UK LTD provides a local, trusted ex...
From £6,506
We are an architecture basis refurbishment company. We do not offer our clients just a designed spaces, we offer them living areas. However, The ch...
From £6,546
Trusted and professional extension builder in N22. Experienced in all extension buildering work and keeping within budget and on quote. Oaks Build ...
From £6,506
KJV CONSTRUCTION LTD is an established and experienced local extension builder in N22. Please contact us for a free, no obligation quote and compet...

Concrete foundations range from the £5,778 (Bellator Construction Ltd based in N11) to £6,546 (Oaks Build based in N13) in N22.
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 N22 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 - £17,555

Two storey extension - £88,083

Build a timber frame extension - £26,055

Build a swimming pool - £81,055

Single storey extension - £56,104

Side return extension - £42,121

Install an RSJ - £2,255

Outbuilding - £10,055

Build a Mansard loft conversion - £52,055

Loft conversion - £34,268

Build a kitchen extension - £42,055

Hip to gable loft conversion - £42,055

Granny annexe - £87,055

Garden office - £10,055

Convert a Garage - £16,055

Garage - £18,555

Build a flat roof extension - £22,055

Build a dormer loft conversion - £42,055

Concrete foundations - £6,305

Convert a bungalow loft - £29,055

Convert a basement - £38,121