From £22,160
Need to find an Extension Builder near you for all your extension buildering work?
Loudwater Building Services provides a local, trusted ex...
From £22,312
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £22,400
Lazor Construction Ltd are here to help customers who need an Extension Builder in HP10. We offer a competitive rate to complete all your extension...
From £22,176
Experienced extension builder ready to quote for your work. G C JONES CONSTRUCTION CO LTD is the best extension builder in HP10. No obligation free...
From £22,400
E E Construction is an established extension buildering business in HP10. We come highly recommended and provide competitive quotes for your work.<...
From £22,096
Relax... you have found a reliable extension builder in HP10. Building High Wycombe is a friendly and reliable company based in HP10 who consider n...
From £21,904
Belvedere is an established and experienced local extension builder in HP10. Please contact us for a free, no obligation quote and competitive rate...
From £22,280
Our building services company Charts Project Management and Build has been helping customers in Buckinghamshire and the surrounding area by providi...
From £22,280
Stonehouse Consultants is an independent specialist construction consultancy delivering a range of quality construction services to projects throug...
From £23,448
Need an Extension Builder in HP10? Bantry Construction Limited has been helping local clients (20 mile radius) with their extension buildering jobs...

A flat roof extension ranges from the cheapest of £21,904 (Belvedere based in HP10) to the dearest of £23,448 (Bantry Construction Limited based in HP10), 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 HP10 by posting a job with HaMuch. We'll send it to extension builders in HP10.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Build A Flat Roof Extension near Hazlemere | £40 | £272 |
| Build A Flat Roof Extension near High Wycombe | £39 | £272 |
| Build A Flat Roof Extension near Wycombe | £39 | £271 |
| Build A Flat Roof Extension near Maidenhead | £41 | £273 |
| Build A Flat Roof Extension near Gerrards Cross | £43 | £282 |
| Build A Flat Roof Extension near Chesham | £42 | £277 |
| 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 Rickmansworth | £42 | £278 |
| Build A Flat Roof Extension near Windsor | £41 | £271 |
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 - £17,846

Two storey extension - £88,518

Build a timber frame extension - £26,346

Build a swimming pool - £81,346

Single storey extension - £61,912

Side return extension - £45,388

Install an RSJ - £2,546

Outbuilding - £10,346

Build a Mansard loft conversion - £52,346

Loft conversion - £36,990

Build a kitchen extension - £42,346

Hip to gable loft conversion - £42,346

Granny annexe - £87,346

Garden office - £10,346

Convert a Garage - £16,346

Garage - £18,846

Build a flat roof extension - £22,346

Build a dormer loft conversion - £42,346

Concrete foundations - £6,596

Convert a bungalow loft - £29,346

Convert a basement - £41,388