From £22,312
DTR Carpentry & Construction Ltd provides high-quality and reliable building services for residential and commercial properties.Based in Go...
From £22,392
Need an Extension Builder in GU8? JAMES UPFOLD CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buildering job...
From £22,320
Need to find an Extension Builder near you for all your extension buildering work?
SG FORD CONSTRUCTION LTD. provides a local, trusted exte...
From £21,920
THE BUILDWISE CONSTRUCTION GRO are here to help customers who need an Extension Builder in GU8. We offer a competitive rate to complete all your ex...
From £22,376
Local business for local people... Established in 1980.....so plenty of local knowledge One man business, honest, reliable, hard working ...
From £22,280
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,000
M&MS CONSTRUCTION LTD is a trusted extension builder serving customers in GU8 and the surrounding area. Contact us to today to get a competitive qu...
From £24,608
With well over a decade of marketing and web design experience working for a variety of tradespeople from cleaners through to builders, Websites 4 ...
From £21,712
K P WARNE BUILDERS is an established extension buildering business in GU8. We come highly recommended and provide competitive quotes for your work....
From £22,168
R S Construction (Surrey) is an established extension buildering business in GU8. We come highly recommended and provide competitive quotes for you...

A flat roof extension ranges from the cheapest of £21,712 (K P WARNE BUILDERS based in GU7) to the dearest of £24,608 (Websites 4 Trades based in GU7), 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 GU8 by posting a job with HaMuch. We'll send it to extension builders in GU8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Waverley | £56 | £265 |
| Build A Flat Roof Extension near Guildford | £44 | £255 |
| Build A Flat Roof Extension near Farnham | £36 | £241 |
| Build A Flat Roof Extension near Aldershot | £35 | £239 |
| Build A Flat Roof Extension near Ash Vale | £36 | £240 |
| Build A Flat Roof Extension near Farnborough | £36 | £239 |
| Build A Flat Roof Extension near Woking | £37 | £238 |
| Build A Flat Roof Extension near Fleet | £35 | £234 |
| Build A Flat Roof Extension near Camberley | £36 | £244 |
| Build A Flat Roof Extension near Great Bookham | £36 | £235 |
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 - £17,909

Two storey extension - £88,613

Build a timber frame extension - £26,409

Build a swimming pool - £81,409

Single storey extension - £63,176

Side return extension - £46,099

Install an RSJ - £2,609

Outbuilding - £10,409

Build a Mansard loft conversion - £52,409

Loft conversion - £37,583

Build a kitchen extension - £42,409

Hip to gable loft conversion - £42,409

Granny annexe - £87,409

Garden office - £10,409

Convert a Garage - £16,409

Garage - £18,909

Build a flat roof extension - £22,409

Build a dormer loft conversion - £42,409

Concrete foundations - £6,659

Convert a bungalow loft - £29,409

Convert a basement - £42,099