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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...
B.A Ruffle Building Contractor is an established extension buildering business in Slough. We come highly recommended and provide competitive quotes...
From 2007 – 2015 David Rudelhoff (Founder and Director) was the Property Manager for a high profile, high net worth family. During that time, in ...
Experienced extension builder ready to quote for your work. A L King Services is the best extension builder in Slough. No obligation free quotes an...
ASAP Roofing & Exterior Maintenance is a trusted extension builder serving customers in Slough and the surrounding area. Contact us to today to get...
Experienced extension builder ready to quote for your work. A South View is the best extension builder in Slough. No obligation free quotes and man...
Ani Mokashi is an established and experienced local extension builder in Slough. Please contact us for a free, no obligation quote and competitive ...
Lead by designer Richard Gordon, GDC is a London and Berkshire based Design & Build firm with a vast amount of experience in both the residential a...
Dub Solutions is a trusted extension builder serving customers in Slough and the surrounding area. Contact us to today to get a competitive quote f...
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A flat roof extension ranges from the cheapest of £21,920 (Lp Townsend Brickwork based in SL2) to the dearest of £22,472 (ASAP Roofing & Exterior Maintenance based in SL5), 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 Slough by posting a job with HaMuch. We'll send it to extension builders in Slough.
| 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 Maidenhead | £41 | £273 |
| Build A Flat Roof Extension near Egham | £42 | £266 |
| Build A Flat Roof Extension near Gerrards Cross | £43 | £283 |
| Build A Flat Roof Extension near Staines-upon-Thames | £42 | £269 |
| Build A Flat Roof Extension near Hillingdon | £43 | £276 |
| Build A Flat Roof Extension near Ascot | £41 | £276 |
| Build A Flat Roof Extension near Bracknell Forest | £40 | £270 |
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 - £17,708

Two storey extension - £88,312

Build a timber frame extension - £26,208

Build a swimming pool - £81,208

Single storey extension - £59,160

Side return extension - £43,840

Install an RSJ - £2,408

Outbuilding - £10,208

Build a Mansard loft conversion - £52,208

Loft conversion - £35,700

Build a kitchen extension - £42,208

Hip to gable loft conversion - £42,208

Granny annexe - £87,208

Garden office - £10,208

Convert a Garage - £16,208

Garage - £18,708

Build a flat roof extension - £22,208

Build a dormer loft conversion - £42,208

Concrete foundations - £6,458

Convert a bungalow loft - £29,208

Convert a basement - £39,840