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Select your affordable SW17 extension builder
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in SW17. No obligation free quotes...
Trusted and professional extension builder in SW17. Experienced in all extension buildering work and keeping within budget and on quote. J & D Cons...
Tooting, SW17
Langston Builders is a trusted extension builder serving customers in SW17 and the surrounding area. Contact us to today to get a competitive quote...
Trusted and professional extension builder in SW17. Experienced in all extension buildering work and keeping within budget and on quote. Sonik Buil...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Renaissance Timothy Brewer Ltd is an established extension buildering business in SW17. We come highly recommended and provide competitive quotes f...
Tenfold Renovation
Need to find an Extension Builder near you for all your extension buildering work?
Tenfold Renovation provides a local, trusted extension b...
PW Construction & Renovation Ltd is a trusted extension builder serving customers in SW17 and the surrounding area. Contact us to today to get a co...
Relax... you have found a reliable extension builder in SW17. PRM BUILDING is a friendly and reliable company based in SW17 who consider no job as ...
QSA Builders Ltd are here to help customers who need an Extension Builder in SW17. We offer a competitive rate to complete all your extension build...

Outbuilding costs in SW17 range from the cheapest of £10,040 (PW Construction & Renovation Ltd based in SW16) to the dearest of £10,416 (ACE BUILDING CONTRACTORS AND D based in SW19), but these are just estimates.
Comparing extension builders estimates for building an outbuilding gives you an idea of who will be better value, but the best way to compare costs is to get actual quotes.
Get rates and quotes to build an outbuilding in SW17 by posting a job with HaMuch and we will send it to extension builders.
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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 - £17,697

Two storey extension - £88,295

Build a timber frame extension - £26,197

Build a swimming pool - £81,197

Single storey extension - £58,936

Side return extension - £43,714

Install an RSJ - £2,397

Outbuilding - £10,197

Build a Mansard loft conversion - £52,197

Loft conversion - £35,595

Build a kitchen extension - £42,197

Hip to gable loft conversion - £42,197

Granny annexe - £87,197

Garden office - £10,197

Convert a Garage - £16,197

Garage - £18,697

Build a flat roof extension - £22,197

Build a dormer loft conversion - £42,197

Concrete foundations - £6,447

Convert a bungalow loft - £29,197

Convert a basement - £39,714