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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...
Jatinder Kahlon
Hi, I’m Jatinder. I’m a qualified electrician and gas safe registered professional with 10 years of experience in the trade. We specialise in l...
Need to find an Extension Builder near you for all your extension buildering work?
Slick Construction Ltd provides a local, trusted extensi...
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 Staines-upon-thames. No obligation f...
ASAP Roofing & Exterior Maintenance is a trusted extension builder serving customers in Staines-upon-thames and the surrounding area. Contact us to...
Ani Mokashi is an established and experienced local extension builder in Staines-upon-thames. Please contact us for a free, no obligation quote and...
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 Staines-upon-thames and the surrounding area. Contact us to today to get a compet...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

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 Staines-upon-thames by posting a job with HaMuch. We'll send it to extension builders in Staines-upon-thames.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Staines-upon-Thames | £42 | £269 |
| Build A Flat Roof Extension near Egham | £42 | £266 |
| Build A Flat Roof Extension near Sunbury-on-Thames | £43 | £273 |
| Build A Flat Roof Extension near New Haw | £43 | £273 |
| 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 Walton-on-Thames | £43 | £277 |
| Build A Flat Roof Extension near Slough | £42 | £272 |
| Build A Flat Roof Extension near Ascot | £41 | £276 |
| Build A Flat Roof Extension near Elmbridge | £44 | £278 |
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 - £17,740

Two storey extension - £88,360

Build a timber frame extension - £26,240

Build a swimming pool - £81,240

Single storey extension - £59,800

Side return extension - £44,200

Install an RSJ - £2,440

Outbuilding - £10,240

Build a Mansard loft conversion - £52,240

Loft conversion - £36,000

Build a kitchen extension - £42,240

Hip to gable loft conversion - £42,240

Granny annexe - £87,240

Garden office - £10,240

Convert a Garage - £16,240

Garage - £18,740

Build a flat roof extension - £22,240

Build a dormer loft conversion - £42,240

Concrete foundations - £6,490

Convert a bungalow loft - £29,240

Convert a basement - £40,200