From £52,056
East Dulwich, SE22
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE22. No obligation free quotes and ...
From £52,336
Our locally run, family building services company J&S Property Services has 65 years combined experience. We have been helping customers in London ...
From £51,880
East Dulwich, SE22
FRIERN BUILDING LTD is an established extension buildering business in SE22. We come highly recommended and provide competitive quotes for your wor...
From £52,024
We do all aspect of work in construction from basement to new build loft extension refurbishments
From £51,992
London, SE22
Five Sextillion is an established and experienced local extension builder in SE22. Please contact us for a free, no obligation quote and competitiv...
From £52,272
BERNARD CONSTRUCTION LTD are here to help customers who need an Extension Builder in SE22. We offer a competitive rate to complete all your extensi...
From £52,120
Global Business BoxLttd are here to help customers who need an Extension Builder in SE22. We offer a competitive rate to complete all your extensio...
From £52,504
Business Email:info@ Glazing & Boarding With local glaziers available 24 hours a day, 7 days a week we...
From £52,024
Greater London, SE22
James Hall Property Solutions Ltd is a trusted extension builder serving customers in SE22 and the surrounding area. Contact us to today to get a c...
From £52,208
Trusted and professional extension builder in SE22. Experienced in all extension buildering work and keeping within budget and on quote. Vidanov Bu...

Mansard loft conversions range from the cheapest installation of £51,880 (FRIERN BUILDING LTD based in SE22) to the dearest of around £52,504 (Babar Jeweler Shop based in SE21).
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 SE22 by posting a job with HaMuch and we'll send it to extension builders in SE22.
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 - £17,642

Two storey extension - £88,212

Build a timber frame extension - £26,142

Build a swimming pool - £81,142

Single storey extension - £57,832

Side return extension - £43,093

Install an RSJ - £2,342

Outbuilding - £10,142

Build a Mansard loft conversion - £52,142

Loft conversion - £35,078

Build a kitchen extension - £42,142

Hip to gable loft conversion - £42,142

Granny annexe - £87,142

Garden office - £10,142

Convert a Garage - £16,142

Garage - £18,642

Build a flat roof extension - £22,142

Build a dormer loft conversion - £42,142

Concrete foundations - £6,392

Convert a bungalow loft - £29,142

Convert a basement - £39,093