From £17,628
Trusted and professional extension builder in Hazlemere. Experienced in all extension buildering work and keeping within budget and on quote. Steve...
From £17,868
Steve Knight Construction is a High Wycombe based Building Company with 38 years experience in all aspects of the Construction Industry. We are abl...
From £17,892
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,460
N J Decorating is an established extension buildering business in Hazlemere. We come highly recommended and provide competitive quotes for your wor...
From £17,572
As a full-service provider, we are dedicated to delivering an outstanding fit out experience for all of our customers. With our innovative designs,...
From £18,948
Need an Extension Builder in Hazlemere? Bantry Construction Limited has been helping local clients (20 mile radius) with their extension buildering...
From £17,772
Trusted and professional extension builder in Hazlemere. Experienced in all extension buildering work and keeping within budget and on quote. G T B...
From £17,780
Our building services company Charts Project Management and Build has been helping customers in Buckinghamshire and the surrounding area by providi...
From £17,900
E E Construction is an established extension buildering business in Hazlemere. We come highly recommended and provide competitive quotes for your w...
From £17,852
Hazlemere, HP15
CONCEPT BUILD are here to help customers who need an Extension Builder in Hazlemere. We offer a competitive rate to complete all your extension bui...

Underpinning ranges from £17,460 (N J Decorating based in HP15) to £18,948 (Bantry Construction Limited based in HP10), but the final cost will depend on the method of underpinning used, how much of your foundations need underpinning and where you live.
Comparing extension builders estimates for underpinning gives you an idea of who will be better value but the best way to compare costs is to get actual quotes.
Get quotes to underpin your home in Hazlemere by posting a job with HaMuch and we will send it to extension builders in Hazlemere.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Hazlemere | £40 | £272 |
| Underpin A Building near High Wycombe | £39 | £272 |
| Underpin A Building near Wycombe | £39 | £271 |
| Underpin A Building near Chesham | £42 | £277 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Maidenhead | £41 | £273 |
| Underpin A Building near Berkhamsted | £41 | £263 |
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near Dacorum | £42 | £269 |
| Underpin A Building near Slough | £42 | £272 |
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 - £17,867

Two storey extension - £88,551

Build a timber frame extension - £26,367

Build a swimming pool - £81,367

Single storey extension - £62,344

Side return extension - £45,631

Install an RSJ - £2,567

Outbuilding - £10,367

Build a Mansard loft conversion - £52,367

Loft conversion - £37,193

Build a kitchen extension - £42,367

Hip to gable loft conversion - £42,367

Granny annexe - £87,367

Garden office - £10,367

Convert a Garage - £16,367

Garage - £18,867

Build a flat roof extension - £22,367

Build a dormer loft conversion - £42,367

Concrete foundations - £6,617

Convert a bungalow loft - £29,367

Convert a basement - £41,631