Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Tooting. No obligation free quo...
PW Construction & Renovation Ltd is a trusted extension builder serving customers in Tooting and the surrounding area. Contact us to today to get a...
Robert Buci
Buci builders ltd is a trusted extension builder serving customers in Tooting and the surrounding area. Contact us to today to get a competitive qu...
Wahid Ali
I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...
London Construction is an established and experienced local extension builder in Tooting. Please contact us for a free, no obligation quote and com...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Tooting, SW17
Renaissance Timothy Brewer Ltd is an established extension buildering business in Tooting. We come highly recommended and provide competitive quote...
Trusted and professional extension builder in Tooting. Experienced in all extension buildering work and keeping within budget and on quote. Sonik B...
Relax... you have found a reliable extension builder in Tooting. PRM BUILDING is a friendly and reliable company based in Tooting who consider no j...

Costs range from £88,060 (PW Construction & Renovation Ltd based in SW16) to £89,536 (Buci builders ltd based in SE27), but these are just estimates. The best way to compare costs is to get real quotes from real 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 - £17,778

Two storey extension - £88,416

Build a timber frame extension - £26,278

Build a swimming pool - £81,278

Single storey extension - £60,552

Side return extension - £44,623

Install an RSJ - £2,478

Outbuilding - £10,278

Build a Mansard loft conversion - £52,278

Loft conversion - £36,353

Build a kitchen extension - £42,278

Hip to gable loft conversion - £42,278

Granny annexe - £87,278

Garden office - £10,278

Convert a Garage - £16,278

Garage - £18,778

Build a flat roof extension - £22,278

Build a dormer loft conversion - £42,278

Concrete foundations - £6,528

Convert a bungalow loft - £29,278

Convert a basement - £40,623