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Underpinning ranges from £17,028 (C O JOYCE LIMITED based in BA16) to £17,028 (C O JOYCE LIMITED based in BA16), 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 BA6 by posting a job with HaMuch and we will send it to extension builders in BA6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near South Somerset | £62 | £270 |
| Underpin A Building near Bridgwater | £30 | £236 |
| Underpin A Building near Yeovil | £34 | £294 |
| Underpin A Building near Bath | £32 | £249 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near Frome | £33 | £263 |
| Underpin A Building near Weston-super-Mare | £33 | £253 |
| Underpin A Building near Taunton | £31 | £242 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Clevedon | £32 | £243 |
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 - £17,028

Two storey extension - £87,292

Build a timber frame extension - £25,528

Build a swimming pool - £80,528

Single storey extension - £45,560

Side return extension - £36,190

Install an RSJ - £1,728

Outbuilding - £9,528

Build a Mansard loft conversion - £51,528

Loft conversion - £29,325

Build a kitchen extension - £41,528

Hip to gable loft conversion - £41,528

Granny annexe - £86,528

Garden office - £9,528

Convert a Garage - £15,528

Garage - £18,028

Build a flat roof extension - £21,528

Build a dormer loft conversion - £41,528

Concrete foundations - £5,778

Convert a bungalow loft - £28,528

Convert a basement - £32,190