MRE Maintenance Services is an established and experienced local extension builder in SL2. Please contact us for a free, no obligation quote and co...
BeautifulRenovation are here to help customers who need an Extension Builder in SL2. We offer a competitive rate to complete all your extension bui...
EIC Builders Ltd are here to help customers who need an Extension Builder in SL2. We offer a competitive rate to complete all your extension builde...
Experienced extension builder ready to quote for your work. Sherry Construction is the best extension builder in SL2. No obligation free quotes and...
BDR Home Improvement are here to help customers who need an Extension Builder in SL2. We offer a competitive rate to complete all your extension bu...
Lee Townsend
Need to find an Extension Builder near you for all your extension buildering work?
Lp Townsend Brickwork provides a local, trusted extensio...
HAMPTON CONSTRUCTION LTD are here to help customers who need an Extension Builder in SL2. We offer a competitive rate to complete all your extensio...
Our building services company A Iqbal Construction Ltd was established in 2018. Since then, we have been helping customers in Slough and the surrou...
Experienced extension builder ready to quote for your work. Rai Builders is the best extension builder in SL2. No obligation free quotes and many h...
Mario
Trusted and professional extension builder in SL2. Experienced in all extension buildering work and keeping within budget and on quote. Mario Polis...

A flat roof extension ranges from the cheapest of £21,680 (Lp Townsend Brickwork based in SL2) to the dearest of £22,384 (HAMPTON CONSTRUCTION LTD based in SL2), 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 SL2 by posting a job with HaMuch. We'll send it to extension builders in SL2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Slough | £42 | £272 |
| 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 Gerrards Cross | £43 | £282 |
| Build A Flat Roof Extension near Maidenhead | £41 | £273 |
| Build A Flat Roof Extension near Hillingdon | £63 | £276 |
| Build A Flat Roof Extension near Egham | £42 | £266 |
| Build A Flat Roof Extension near Staines-upon-Thames | £42 | £269 |
| Build A Flat Roof Extension near Ascot | £41 | £276 |
| Build A Flat Roof Extension near Rickmansworth | £42 | £279 |
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 - £17,560

Two storey extension - £88,090

Build a timber frame extension - £26,060

Build a swimming pool - £81,060

Single storey extension - £56,200

Side return extension - £42,175

Install an RSJ - £2,260

Outbuilding - £10,060

Build a Mansard loft conversion - £52,060

Loft conversion - £34,313

Build a kitchen extension - £42,060

Hip to gable loft conversion - £42,060

Granny annexe - £87,060

Garden office - £10,060

Convert a Garage - £16,060

Garage - £18,560

Build a flat roof extension - £22,060

Build a dormer loft conversion - £42,060

Concrete foundations - £6,310

Convert a bungalow loft - £29,060

Convert a basement - £38,175