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T M Builder
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Image Design & Consultants
Image Design & Consultants is a trusted extension builder serving customers in Hayes and the surrounding area. Contact us to today to get a competi...
MJ Builders (London) Ltd
Hardeep Samra
MJ Builders (London) Ltd are here to help customers who need an Extension Builder in Hayes. We offer a competitive rate to complete all your extens...
DC Build & Pave
Trusted and professional extension builder in Hayes. Experienced in all extension buildering work and keeping within budget and on quote. DC Build ...
Matharu Buildings
Bill Matharu
Matharu Buildings is an established extension buildering business in Hayes. We come highly recommended and provide competitive quotes for your work...
Elegance Construction Ltd
Bhupinder Singh
Hayes, UB3
Trusted and professional extension builder in Hayes. Experienced in all extension buildering work and keeping within budget and on quote. Elegance ...
JD Construction
JD Construction is an established and experienced local extension builder in Hayes. Please contact us for a free, no obligation quote and competiti...
ZNS Construction
Need an Extension Builder in Hayes? ZNS Construction has been helping local clients (10 mile radius) with their extension buildering jobs for many ...
Ava Constructions & Decors Ltd
Need an Extension Builder in Hayes? Ava Constructions & Decors Ltd has been helping local clients (10 mile radius) with their extension buildering ...
Gallant Contractors Ltd
Gallant Contractors have partnered with Homeowners, Designers and Architects to deliver unrivalled construction, renovation, double glazing and ref...
Flat roof extension cost in Hayes
A flat roof extension ranges from the cheapest of £21,944 (Ava Constructions & Decors Ltd based in UB3) to the dearest of £22,432 (ZNS Construction based in TW14), 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 Hayes by posting a job with HaMuch. We'll send it to extension builders in Hayes.
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- Factors affecting the cost of flat roof extensions
- Advantages and disadvantages of flat roofs
- Which is cheaper: a flat roof or pitched roof?
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- Do you need planning permission for a flat roof extension?
- How long does a flat roof last?
- Can you walk on a flat roof extension?
- What insulation do I need for a flat roof extension?
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Estimates for common extension builder jobs in Hayes;
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 - £17,689
Two storey extension - £88,283
Build a timber frame extension - £26,189
Build a swimming pool - £81,189
Single storey extension - £58,776
Side return extension - £43,624
Install an RSJ - £2,389
Outbuilding - £10,189
Build a Mansard loft conversion - £52,189
Loft conversion - £35,520
Build a kitchen extension - £42,189
Hip to gable loft conversion - £42,189
Granny annexe - £87,189
Garden office - £10,189
Convert a Garage - £16,189
Garage - £18,689
Build a flat roof extension - £22,189
Build a dormer loft conversion - £42,189
Concrete foundations - £6,439
Convert a bungalow loft - £29,189
Convert a basement - £39,624