From £17,588
Need to find an Extension Builder near you for all your extension buildering work?
PSB Builders Ltd provides a local, trusted extension bui...
From £17,540
Mitchell & Co Building & Renovations Ltd is an established extension buildering business in Totteridge. We come highly recommended and provide comp...
From £17,596
Totteridge, HP13
Relax... you have found a reliable extension builder in Totteridge. Building High Wycombe is a friendly and reliable company based in Totteridge wh...
From £17,772
Trusted and professional extension builder in Totteridge. Experienced in all extension buildering work and keeping within budget and on quote. G T ...
From £17,924
Here at S Halls Construction Ltd, we undertake all hard landscaping works. Patios, driveways, fencing and groundworks, we also cover many areas of ...
From £17,900
Lazor Construction Ltd are here to help customers who need an Extension Builder in Totteridge. We offer a competitive rate to complete all your ext...
From £17,588
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,804
Totteridge, HP13
Relax... you have found a reliable extension builder in Totteridge. JAMES BUILDERS is a friendly and reliable company based in Totteridge who consi...
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 £17,780
Our building services company Charts Project Management and Build has been helping customers in Buckinghamshire and the surrounding area by providi...

Underpinning ranges from £17,540 (Mitchell & Co Building & Renovations Ltd based in HP13) to £17,924 (S Halls Construction Ltd based in HP13), 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 Totteridge by posting a job with HaMuch and we will send it to extension builders in Totteridge.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near High Wycombe | £39 | £272 |
| Underpin A Building near Hazlemere | £40 | £272 |
| Underpin A Building near Wycombe | £39 | £271 |
| Underpin A Building near Maidenhead | £41 | £273 |
| Underpin A Building near Chesham | £42 | £277 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Slough | £42 | £274 |
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near Windsor & Maidenhead | £42 | £274 |
| Underpin A Building near Berkhamsted | £41 | £263 |
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 - £17,706

Two storey extension - £88,310

Build a timber frame extension - £26,206

Build a swimming pool - £81,206

Single storey extension - £59,128

Side return extension - £43,822

Install an RSJ - £2,406

Outbuilding - £10,206

Build a Mansard loft conversion - £52,206

Loft conversion - £35,685

Build a kitchen extension - £42,206

Hip to gable loft conversion - £42,206

Granny annexe - £87,206

Garden office - £10,206

Convert a Garage - £16,206

Garage - £18,706

Build a flat roof extension - £22,206

Build a dormer loft conversion - £42,206

Concrete foundations - £6,456

Convert a bungalow loft - £29,206

Convert a basement - £39,822