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SJ Expert Building Services
Muswell Hill, N10
SJ Expert Building Services are here to help customers who need an Extension Builder in N10. We offer a competitive rate to complete all your exten...
Bellator Construction Ltd
Dimitar Vakavliev
We are reliable tradesmen delivering quality works with attention to detail
WT Construction Service Ltd
Need the extension buildering job done quickly without breaking the bank? WT Construction Service Ltd offer fast, reliable, and affordable extensio...
Onyx Iv
Ivaylo Shkodrov
Extremely reliable service . Flexibility, correct, listening customer. Wide experience.
Raf's Building Service
Need to find an Extension Builder near you for all your extension buildering work?
Raf's Building Service provides a local, trusted extensi...
Elmfield Property Services
Need to find an Extension Builder near you for all your extension buildering work?
Elmfield Property Services provides a local, trusted ext...
A K Decoration & Building Serv
Need an Extension Builder in N10? A K Decoration & Building Serv has been helping local clients (5 mile radius) with their extension buildering job...
Chelebi Builders
Chelebi Builders is a bespoke Build & Design construction company based in North London. Our expertise range from Loft Conversions, Extensions, Hou...
Gwe construction
Trusted and professional extension builder in N10. Experienced in all extension buildering work and keeping within budget and on quote. Gwe constru...
Renova PMC
Renova PMC - bespoke construction, interior designers
Flat roof extension cost in N10
A flat roof extension ranges from the cheapest of £21,320 (Onyx Iv based in N11) to the dearest of £22,376 (WT Construction Service Ltd based in N11), but these are just estimates. While they give you an idea of who will be better value, the best way to compare costs is to get real quotes.
Find out how much your flat roof extension will cost in N10 by posting a job with HaMuch. We'll send it to extension builders in N10.
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Estimates for common extension builder jobs in N10;
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 - £17,446
Two storey extension - £87,920
Build a timber frame extension - £25,946
Build a swimming pool - £80,946
Single storey extension - £53,928
Side return extension - £40,897
Install an RSJ - £2,146
Outbuilding - £9,946
Build a Mansard loft conversion - £51,946
Loft conversion - £33,248
Build a kitchen extension - £41,946
Hip to gable loft conversion - £41,946
Granny annexe - £86,946
Garden office - £9,946
Convert a Garage - £15,946
Garage - £18,446
Build a flat roof extension - £21,946
Build a dormer loft conversion - £41,946
Concrete foundations - £6,196
Convert a bungalow loft - £28,946
Convert a basement - £36,897