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London Construction is an established and experienced local extension builder in SW12. Please contact us for a free, no obligation quote and compet...
QA's Pointing Brick Repair
Relax... you have found a reliable extension builder in SW12. QA's Pointing and Brick Repair is a friendly and reliable company based in SW12 who c...
Langston Builders is a trusted extension builder serving customers in SW12 and the surrounding area. Contact us to today to get a competitive quote...
Renaissance Timothy Brewer Ltd is an established extension buildering business in SW12. We come highly recommended and provide competitive quotes f...
PW Construction & Renovation Ltd is a trusted extension builder serving customers in SW12 and the surrounding area. Contact us to today to get a co...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in SW12. No obligation free q...
Relax... you have found a reliable extension builder in SW12. PRM BUILDING is a friendly and reliable company based in SW12 who consider no job as ...
QSA Builders Ltd are here to help customers who need an Extension Builder in SW12. We offer a competitive rate to complete all your extension build...
Trusted and professional extension builder in SW12. Experienced in all extension buildering work and keeping within budget and on quote. Local Buil...
R C BUILDER is a trusted extension builder serving customers in SW12 and the surrounding area. Contact us to today to get a competitive quote for e...

Kitchen extensions in SW12 range from the cheapest of £42,016 (Local Building Services based in SW16) to the dearest of £42,448 (London Construction based in SW11), but these are just estimates based on our database of hourly and daily rates from tradespeople across the country.
The best way to get an accurate price for your kitchen extension is to get actual quotes. Post your job on HaMuch now and we'll send it to extension builders in SW12.
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 - £17,710

Two storey extension - £88,316

Build a timber frame extension - £26,210

Build a swimming pool - £81,210

Single storey extension - £59,208

Side return extension - £43,867

Install an RSJ - £2,410

Outbuilding - £10,210

Build a Mansard loft conversion - £52,210

Loft conversion - £35,723

Build a kitchen extension - £42,210

Hip to gable loft conversion - £42,210

Granny annexe - £87,210

Garden office - £10,210

Convert a Garage - £16,210

Garage - £18,710

Build a flat roof extension - £22,210

Build a dormer loft conversion - £42,210

Concrete foundations - £6,460

Convert a bungalow loft - £29,210

Convert a basement - £39,867