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Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. AM Bu...
Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. Charl...
Jay Christenson
Experienced extension builder ready to quote for your work. Jmc buildets is the best extension builder in Greenwich. No obligation free quotes and ...
RLD Contractors Ltd is an established and experienced local extension builder in Greenwich. Please contact us for a free, no obligation quote and c...
Rapid Bee Ltd is an established extension buildering business in Greenwich. We come highly recommended and provide competitive quotes for your work...
Trusted and professional extension builder in Greenwich. Experienced in all extension buildering work and keeping within budget and on quote. ROOSE...
Andy Tunmer Building Services is an established and experienced local extension builder in Greenwich. Please contact us for a free, no obligation q...
Andy Hart
Need to find an Extension Builder near you for all your extension buildering work?
Hartigans Construction provides a local, trusted extensi...
Relax... you have found a reliable extension builder in Greenwich. S G Painting Contractor Ltd is a friendly and reliable company based in Greenwic...
Need to find an Extension Builder near you for all your extension buildering work?
JEM BUILDING CONTRACTORS LTD provides a local, trusted e...

Mansard loft conversions range from the cheapest installation of £51,616 (Jmc buildets based in SE9) to the dearest of around £52,264 (Andy Tunmer Building Services based in E14).
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 Greenwich by posting a job with HaMuch and we'll send it to extension builders in Greenwich.
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 - £17,566

Two storey extension - £88,100

Build a timber frame extension - £26,066

Build a swimming pool - £81,066

Single storey extension - £56,328

Side return extension - £42,247

Install an RSJ - £2,266

Outbuilding - £10,066

Build a Mansard loft conversion - £52,066

Loft conversion - £34,373

Build a kitchen extension - £42,066

Hip to gable loft conversion - £42,066

Granny annexe - £87,066

Garden office - £10,066

Convert a Garage - £16,066

Garage - £18,566

Build a flat roof extension - £22,066

Build a dormer loft conversion - £42,066

Concrete foundations - £6,316

Convert a bungalow loft - £29,066

Convert a basement - £38,247