Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Balham. No obligation free quot...
Vasi J
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..."I am very pleased with the work carried out. All very clear and transparent." - ROMFORD,reviewed 10/01/18, KELLY
PW Construction & Renovation Ltd is a trusted extension builder serving customers in Balham and the surrounding area. Contact us to today to get a ...
Robert Buci
Buci builders ltd is a trusted extension builder serving customers in Balham and the surrounding area. Contact us to today to get a competitive quo...
Experienced extension builder ready to quote for your work. D & G Building & Decorating is the best extension builder in Balham. No obligation free...
London Construction is an established and experienced local extension builder in Balham. Please contact us for a free, no obligation quote and comp...
Experienced extension builder ready to quote for your work. Cornerstones Construction is the best extension builder in Balham. No obligation free q...
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 Balham. We come highly recommended and provide competitive quotes...
Trusted and professional extension builder in Balham. Experienced in all extension buildering work and keeping within budget and on quote. Sonik Bu...

Mansard loft conversions range from the cheapest installation of £51,984 (RCB Group Design & Build based in SE21) to the dearest of around £53,024 (Buci builders ltd based in SE27).
While these estimates give you a good idea how much you'll pay for a mansard loft conversion, the only way to get an accurate price is to get real quotes from real builders.
Get quotes to install a mansard loft conversion in Balham by posting a job with HaMuch and we'll send it to extension builders in Balham.
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 - £17,766

Two storey extension - £88,400

Build a timber frame extension - £26,266

Build a swimming pool - £81,266

Single storey extension - £60,328

Side return extension - £44,497

Install an RSJ - £2,466

Outbuilding - £10,266

Build a Mansard loft conversion - £52,266

Loft conversion - £36,248

Build a kitchen extension - £42,266

Hip to gable loft conversion - £42,266

Granny annexe - £87,266

Garden office - £10,266

Convert a Garage - £16,266

Garage - £18,766

Build a flat roof extension - £22,266

Build a dormer loft conversion - £42,266

Concrete foundations - £6,516

Convert a bungalow loft - £29,266

Convert a basement - £40,497