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AV Home Improvements
Herts, WD19
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
Sharp Building Ltd
Sharp Building Ltd is an established and experienced local extension builder in WD19. Please contact us for a free, no obligation quote and competi...
AVENUE BUILDERS
AVENUE BUILDERS is an established extension buildering business in WD19. We come highly recommended and provide competitive quotes for your work.
C S C BUILDINGS LTD
Relax... you have found a reliable extension builder in WD19. C S C BUILDINGS LTD is a friendly and reliable company based in WD19 who consider no ...
Frame Brickwork
Relax... you have found a reliable extension builder in WD19. Frame Brickwork is a friendly and reliable company based in WD19 who consider no job ...
1st Choice Builders UK
Experienced extension builder ready to quote for your work. 1st Choice Builders UK is the best extension builder in WD19. No obligation free quotes...
T N Roofing
T N Roofing is an established extension buildering business in WD19. We come highly recommended and provide competitive quotes for your work.
Project Squared Construction Ltd
We specialise in constructing and the refurbishment of homes for discerning clients looking for quality, excellence and design in London and the Ho...
Design & Build Builders Ltd
Trusted and professional extension builder in WD19. Experienced in all extension buildering work and keeping within budget and on quote. Design & B...
From £22,424
S2M VENTURES LLP
Trusted and professional extension builder in WD19. Experienced in all extension buildering work and keeping within budget and on quote. S2M VENTUR...
Flat roof extension cost in WD19
A flat roof extension ranges from the cheapest of £22,208 (AVENUE BUILDERS based in WD23) to the dearest of £24,760 (Design & Build Builders Ltd based in WD18), 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 WD19 by posting a job with HaMuch. We'll send it to extension builders in WD19.
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- Factors affecting the cost of flat roof extensions
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Estimates for common extension builder jobs in WD19;
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 - £18,086
Two storey extension - £88,880
Build a timber frame extension - £26,586
Build a swimming pool - £81,586
Single storey extension - £66,728
Side return extension - £48,097
Install an RSJ - £2,786
Outbuilding - £10,586
Build a Mansard loft conversion - £52,586
Loft conversion - £39,248
Build a kitchen extension - £42,586
Hip to gable loft conversion - £42,586
Granny annexe - £87,586
Garden office - £10,586
Convert a Garage - £16,586
Garage - £19,086
Build a flat roof extension - £22,586
Build a dormer loft conversion - £42,586
Concrete foundations - £6,836
Convert a bungalow loft - £29,586
Convert a basement - £44,097