From £16,948
SHORE FIX CONSTRUCTION LTD is an established extension buildering business in St Keverne. We come highly recommended and provide competitive quotes...
From £17,396
Need an Extension Builder in St Keverne? Cloverfield Construction Ltd has been helping local clients (20 mile radius) with their extension builderi...
From £17,252
Jackson Developments provides an affordable, quality service for customers across Cornwall.We undertake all aspects of building work and can manage...
From £17,292
Need to find an Extension Builder near you for all your extension buildering work?
Samuel Winn Design & Build provides a local, trusted ext...
From £17,244
Trusted and professional extension builder in St Keverne. Experienced in all extension buildering work and keeping within budget and on quote. Jo T...
From £16,972
Trusted and professional extension builder in St Keverne. Experienced in all extension buildering work and keeping within budget and on quote. Mark...
From £17,284
Need to find an Extension Builder near you for all your extension buildering work?
KPK Builders Ltd provides a local, trusted extension bui...
From £17,116
D.P.Hatley Building Services is an established extension buildering business in St Keverne. We come highly recommended and provide competitive quot...
From £17,404
At peninsula refurbishment we provide a service from start to finish with minimal hassle for the customer. The workmanship is always high priority,...
From £17,028
Trusted and professional extension builder in St Keverne. Experienced in all extension buildering work and keeping within budget and on quote. D & ...

Underpinning ranges from £16,948 (SHORE FIX CONSTRUCTION LTD based in TR12) to £17,404 (Peninsula Property Refurbishments based in TR15), 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 St Keverne by posting a job with HaMuch and we will send it to extension builders in St Keverne.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Falmouth | £33 | £220 |
| Underpin A Building near Camborne | £28 | £196 |
| Underpin A Building near Truro | £31 | £206 |
| Underpin A Building near St Ives, Cornwall | £27 | £188 |
| Underpin A Building near Newquay | £32 | £230 |
| Underpin A Building near St Austell | £38 | £245 |
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 - £17,194

Two storey extension - £87,540

Build a timber frame extension - £25,694

Build a swimming pool - £80,694

Single storey extension - £48,872

Side return extension - £38,053

Install an RSJ - £1,894

Outbuilding - £9,694

Build a Mansard loft conversion - £51,694

Loft conversion - £30,878

Build a kitchen extension - £41,694

Hip to gable loft conversion - £41,694

Granny annexe - £86,694

Garden office - £9,694

Convert a Garage - £15,694

Garage - £18,194

Build a flat roof extension - £21,694

Build a dormer loft conversion - £41,694

Concrete foundations - £5,944

Convert a bungalow loft - £28,694

Convert a basement - £34,053