From £52,032
Trusted and professional extension builder in Sidcup. Experienced in all extension buildering work and keeping within budget and on quote. T L CONS...
From £51,896
Kent, DA14
Relax... you have found a reliable extension builder in Sidcup. Mormac Group is a friendly and reliable company based in Sidcup who consider no job...
From £52,056
Sunny Build Ltd is an established and experienced local extension builder in Sidcup. Please contact us for a free, no obligation quote and competit...
From £52,504
At EVConstructing Ltd , we have experience of supplying, designing and fitting bathrooms since 2011. We pride ourselves on being the go-to bathroom...
From £52,000
Experienced extension builder ready to quote for your work. NA Brickwork is the best extension builder in Sidcup. No obligation free quotes and man...
From £52,080
Aura Construction is a trusted extension builder serving customers in Sidcup and the surrounding area. Contact us to today to get a competitive quo...
From £52,096
Greater London, DA14
Tage London are here to help customers who need an Extension Builder in Sidcup. We offer a competitive rate to complete all your extension builderi...
From £52,344
PAUL BEADLE CONSTRUCTION are here to help customers who need an Extension Builder in Sidcup. We offer a competitive rate to complete all your exten...
From £52,464
Europa is an established and experienced local extension builder in Sidcup. Please contact us for a free, no obligation quote and competitive rates...

Mansard loft conversions range from the cheapest installation of £51,632 (Builder based in DA14) to the dearest of around £52,504 (EVConstructing Ltd based in DA15).
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 Sidcup by posting a job with HaMuch and we'll send it to extension builders in Sidcup.
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 - £17,610

Two storey extension - £88,166

Build a timber frame extension - £26,110

Build a swimming pool - £81,110

Single storey extension - £57,208

Side return extension - £42,742

Install an RSJ - £2,310

Outbuilding - £10,110

Build a Mansard loft conversion - £52,110

Loft conversion - £34,785

Build a kitchen extension - £42,110

Hip to gable loft conversion - £42,110

Granny annexe - £87,110

Garden office - £10,110

Convert a Garage - £16,110

Garage - £18,610

Build a flat roof extension - £22,110

Build a dormer loft conversion - £42,110

Concrete foundations - £6,360

Convert a bungalow loft - £29,110

Convert a basement - £38,742