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Select your affordable South Somerset extension builder
STONEWALK CONSTRUCTION LTD is an established and experienced local extension builder in South Somerset. Please contact us for a free, no obligation...
Experienced extension builder ready to quote for your work. ABS Abbott Preservation is the best extension builder in South Somerset. No obligation ...
Need to find an Extension Builder near you for all your extension buildering work?
Neil Massey Roofing Contractor provides a local, trusted...
Hraham Evans
Firestone Surfacing Ltd is a trusted extension builder serving customers in South Somerset and the surrounding area. Contact us to today to get a c...
From £17,996
Experienced extension builder ready to quote for your work. Tim Stradling is the best extension builder in South Somerset. No obligation free quote...

Underpinning ranges from £17,028 (C O JOYCE LIMITED based in BA16) to £18,596 (Neil Massey Roofing Contractor based in BA21), 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 South Somerset by posting a job with HaMuch and we will send it to extension builders in South Somerset.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near South Somerset | £62 | £270 |
| Underpin A Building near Yeovil | £34 | £294 |
| Underpin A Building near Bridgwater | £30 | £236 |
| Underpin A Building near Taunton | £31 | £242 |
| Underpin A Building near Frome | £33 | £263 |
| Underpin A Building near Bath | £32 | £249 |
| Underpin A Building near Dorchester | £30 | £230 |
| Underpin A Building near Weston-super-Mare | £33 | £253 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near Keynsham | £33 | £251 |
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 - £17,676

Two storey extension - £88,264

Build a timber frame extension - £26,176

Build a swimming pool - £81,176

Single storey extension - £58,520

Side return extension - £43,480

Install an RSJ - £2,376

Outbuilding - £10,176

Build a Mansard loft conversion - £52,176

Loft conversion - £35,400

Build a kitchen extension - £42,176

Hip to gable loft conversion - £42,176

Granny annexe - £87,176

Garden office - £10,176

Convert a Garage - £16,176

Garage - £18,676

Build a flat roof extension - £22,176

Build a dormer loft conversion - £42,176

Concrete foundations - £6,426

Convert a bungalow loft - £29,176

Convert a basement - £39,480