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Lee Townsend
Need to find an Extension Builder near you for all your extension buildering work?
Lp Townsend Brickwork provides a local, trusted extensio...
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 is an established and experienced local extension builder in Gerrards Cross. Please contact us for a free, no obligation quote a...
Mario Prajar Building Services is an established and experienced local extension builder in Gerrards Cross. Please contact us for a free, no obliga...
Need to find an Extension Builder near you for all your extension buildering work?
MAX CONSTRUCTION LTD provides a local, trusted extension...
Relax... you have found a reliable extension builder in Gerrards Cross. C T Edwards is a friendly and reliable company based in Gerrards Cross who ...
Relax... you have found a reliable extension builder in Gerrards Cross. Building Service and Support Ltd is a friendly and reliable company based i...
ALG Renovations is a well established, trustworthy, reliable and professional operation with over 17 years experience myself in the trade, base...
MRE Maintenance Services is an established and experienced local extension builder in Gerrards Cross. Please contact us for a free, no obligation q...
BeautifulRenovation are here to help customers who need an Extension Builder in Gerrards Cross. We offer a competitive rate to complete all your ex...

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 Gerrards Cross by posting a job with HaMuch. We'll send it to extension builders in Gerrards Cross.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Gerrards Cross | £43 | £283 |
| Build A Flat Roof Extension near Rickmansworth | £43 | £282 |
| Build A Flat Roof Extension near Hillingdon | £43 | £276 |
| Build A Flat Roof Extension near Slough | £42 | £272 |
| Build A Flat Roof Extension near Watford | £43 | £280 |
| Build A Flat Roof Extension near Hazlemere | £40 | £272 |
| Build A Flat Roof Extension near Chesham | £42 | £277 |
| Build A Flat Roof Extension near Windsor & Maidenhead | £42 | £272 |
| Build A Flat Roof Extension near Windsor | £41 | £271 |
| Build A Flat Roof Extension near Maidenhead | £41 | £273 |
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 - £17,652

Two storey extension - £88,228

Build a timber frame extension - £26,152

Build a swimming pool - £81,152

Single storey extension - £58,040

Side return extension - £43,210

Install an RSJ - £2,352

Outbuilding - £10,152

Build a Mansard loft conversion - £52,152

Loft conversion - £35,175

Build a kitchen extension - £42,152

Hip to gable loft conversion - £42,152

Granny annexe - £87,152

Garden office - £10,152

Convert a Garage - £16,152

Garage - £18,652

Build a flat roof extension - £22,152

Build a dormer loft conversion - £42,152

Concrete foundations - £6,402

Convert a bungalow loft - £29,152

Convert a basement - £39,210