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JJSR Construction Ltd
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Pinner. Please contact us for a free, no obligation quote and co...
AV Home Improvements
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 Pinner. Please contact us for a free, no obligation quote and compe...
Mario Prajar Building Services
Mario Prajar Building Services is an established and experienced local extension builder in Pinner. Please contact us for a free, no obligation quo...
MAX CONSTRUCTION LTD
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
RLC Construction
RLC Construction are here to help customers who need an Extension Builder in Pinner. We offer a competitive rate to complete all your extension bui...
C T Edwards
Relax... you have found a reliable extension builder in Pinner. C T Edwards is a friendly and reliable company based in Pinner who consider no job ...
Building Service and Support Ltd
Pinner, HA5
Relax... you have found a reliable extension builder in Pinner. Building Service and Support Ltd is a friendly and reliable company based in Pinner...
J K GENERAL BUILDING LTD
Need to find an Extension Builder near you for all your extension buildering work?
J K GENERAL BUILDING LTD provides a local, trusted exten...
ALG Renovations
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
Flat roof extension cost in Pinner
A flat roof extension ranges from the cheapest of £21,880 (MAX CONSTRUCTION LTD based in HA4) to the dearest of £22,464 (AV Home Improvements based in WD19), 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 Pinner by posting a job with HaMuch. We'll send it to extension builders in Pinner.
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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 Pinner;
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 - £17,693
Two storey extension - £88,289
Build a timber frame extension - £26,193
Build a swimming pool - £81,193
Single storey extension - £58,856
Side return extension - £43,669
Install an RSJ - £2,393
Outbuilding - £10,193
Build a Mansard loft conversion - £52,193
Loft conversion - £35,558
Build a kitchen extension - £42,193
Hip to gable loft conversion - £42,193
Granny annexe - £87,193
Garden office - £10,193
Convert a Garage - £16,193
Garage - £18,693
Build a flat roof extension - £22,193
Build a dormer loft conversion - £42,193
Concrete foundations - £6,443
Convert a bungalow loft - £29,193
Convert a basement - £39,669