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The Perfectionist
Experienced extension builder ready to quote for your work. The Perfectionist is the best extension builder in SE4. No obligation free quotes and m...
S G Painting Contractor Ltd
Relax... you have found a reliable extension builder in SE4. S G Painting Contractor Ltd is a friendly and reliable company based in SE4 who consid...
From £38,670
South East Builders
London, SE4
South East Builders are here to help customers who need an Extension Builder in SE4. We offer a competitive rate to complete all your extension bui...
From £40,290
Baseline Build and Renovate Ltd
Baseline Build and Renovate Ltd is an established extension buildering business in SE4. We come highly recommended and provide competitive quotes f...
From £36,150
FRIERN BUILDING LTD
FRIERN BUILDING LTD is an established extension buildering business in SE4. We come highly recommended and provide competitive quotes for your work...
From £40,560
BERNARD CONSTRUCTION LTD
BERNARD CONSTRUCTION LTD are here to help customers who need an Extension Builder in SE4. We offer a competitive rate to complete all your extensio...
From £38,580
S W BUILDPROVEMENT
Whether you are looking to build, extend or upgrade we will help. From building to decorating. Our professional team have the skills and experie...
From £41,820
RM Building (London) Ltd
Trusted and professional extension builder in SE4. Experienced in all extension buildering work and keeping within budget and on quote. RM Building...
From £38,400
CHRIS BALL & SON ROOFING LTD
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £41,010
blitbolt ltd
Need to find an Extension Builder near you for all your extension buildering work?
blitbolt ltd provides a local, trusted extension builder...
Cheapest builders to convert your basement in SE4
Comparing extension builders estimates for a Convert a basement gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
What to do - Get rates and quotes for the cost to convert a basement in SE4 by posting a job with HaMuch and we will send it to extension builders in SE4.
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Estimates for common extension builder jobs in SE4;
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 - £17,658
Two storey extension - £88,238
Build a timber frame extension - £26,158
Build a swimming pool - £81,158
Single storey extension - £58,168
Side return extension - £43,282
Install an RSJ - £2,358
Outbuilding - £10,158
Build a Mansard loft conversion - £52,158
Loft conversion - £35,235
Build a kitchen extension - £42,158
Hip to gable loft conversion - £42,158
Granny annexe - £87,158
Garden office - £10,158
Convert a Garage - £16,158
Garage - £18,658
Build a flat roof extension - £22,158
Build a dormer loft conversion - £42,158
Concrete foundations - £6,408
Convert a bungalow loft - £29,158
Convert a basement - £39,282