From £6,194
UGBuilders are here to help customers who need an Extension Builder in Streatham. We offer a competitive rate to complete all your extension builde...
From £6,522
Greater London, SW16
CorePro LTD is an established and experienced local extension builder in Streatham. Please contact us for a free, no obligation quote and competiti...
From £6,562
Need an Extension Builder in Streatham? #NAME? has been helping local clients (5 mile radius) with their extension buildering jobs for many years. ...
From £6,290
Streatham, SW16
PW Construction & Renovation Ltd is a trusted extension builder serving customers in Streatham and the surrounding area. Contact us to today to get...
From £6,114
Greater Space Ltd is an established and experienced local extension builder in Streatham. Please contact us for a free, no obligation quote and com...
From £6,522
Surrey, SW16
Re:Design Architecture is a trusted extension builder serving customers in Streatham and the surrounding area. Contact us to today to get a competi...
From £6,354
Trusted and professional extension builder in Streatham. Experienced in all extension buildering work and keeping within budget and on quote. Ashde...
From £6,274
Streatham, SW16
Relax... you have found a reliable extension builder in Streatham. Exquisite Touch is a friendly and reliable company based in Streatham who consid...
From £6,210
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £6,330
Streatham London, SW16
Trusted and professional extension builder in Streatham. Experienced in all extension buildering work and keeping within budget and on quote. Astra...

Concrete foundations range from the £6,114 (Greater Space Ltd based in SW16) to £6,562 (#NAME? based in SW16) in Streatham.
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 Streatham 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 - £17,587

Two storey extension - £88,131

Build a timber frame extension - £26,087

Build a swimming pool - £81,087

Single storey extension - £56,744

Side return extension - £42,481

Install an RSJ - £2,287

Outbuilding - £10,087

Build a Mansard loft conversion - £52,087

Loft conversion - £34,568

Build a kitchen extension - £42,087

Hip to gable loft conversion - £42,087

Granny annexe - £87,087

Garden office - £10,087

Convert a Garage - £16,087

Garage - £18,587

Build a flat roof extension - £22,087

Build a dormer loft conversion - £42,087

Concrete foundations - £6,337

Convert a bungalow loft - £29,087

Convert a basement - £38,481