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Select your affordable SE14 extension builder
Need an Extension Builder in SE14? Exquisite Design & Build Ltd has been helping local clients (5 mile radius) with their extension buildering jobs...
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE14. No obligation free quotes and ...
At Home Tranformers Ltd we have been fitting bespoke bathrooms for over 10 years. We pride ourselves on being the go-to bathroom fitters for discer...
Need to find an Extension Builder near you for all your extension buildering work?
Ask Building provides a local, trusted extension builder...
Trusted and professional extension builder in SE14. Experienced in all extension buildering work and keeping within budget and on quote. ROOSE CONS...
From £17,604
South East Builders are here to help customers who need an Extension Builder in SE14. We offer a competitive rate to complete all your extension bu...
From £21,548
Chris Ellis
Based in Camberwell south east London we provide a turnkey service for Domestic and Commercial construction Projects from conception to compl...
From £17,932
Island design & Construction Ltd are here to help customers who need an Extension Builder in SE14. We offer a competitive rate to complete all your...
From £17,756
SCL Design & Build Ltd are here to help customers who need an Extension Builder in SE14. We offer a competitive rate to complete all your extension...
From £17,812
We are a London-based contractor with significant experience in prime property construction and refurbishment, delivering projects for our clients ...

Underpinning ranges from £17,556 (The Perfectionist based in SE22) to £21,548 (Chris Ellis Project Service based in SE5), 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 SE14 by posting a job with HaMuch and we will send it to extension builders in SE14.
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 - £18,142

Two storey extension - £88,962

Build a timber frame extension - £26,642

Build a swimming pool - £81,642

Single storey extension - £67,832

Side return extension - £48,718

Install an RSJ - £2,842

Outbuilding - £10,642

Build a Mansard loft conversion - £52,642

Loft conversion - £39,765

Build a kitchen extension - £42,642

Hip to gable loft conversion - £42,642

Granny annexe - £87,642

Garden office - £10,642

Convert a Garage - £16,642

Garage - £19,142

Build a flat roof extension - £22,642

Build a dormer loft conversion - £42,642

Concrete foundations - £6,892

Convert a bungalow loft - £29,642

Convert a basement - £44,718