From £17,836
A complete building service based in the Isle of Purbeck, Dorset. Campbell Clarke Construction are an established, experienced and trusted building...

Underpinning ranges from £17,836 (Campbell Clarke Construction LTD based in BH20) to £17,836 (Campbell Clarke Construction LTD based in BH20), 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 BH20 by posting a job with HaMuch and we will send it to extension builders in BH20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Poole | £38 | £250 |
| Underpin A Building near Bournemouth | £38 | £257 |
| Underpin A Building near Dorchester | £30 | £230 |
| Underpin A Building near Weymouth | £33 | £260 |
| Underpin A Building near Christchurch | £36 | £251 |
| Underpin A Building near New Forest | £32 | £245 |
| Underpin A Building near Yeovil | £34 | £294 |
| Underpin A Building near Salisbury | £35 | £247 |
| Underpin A Building near Totton | £34 | £243 |
| Underpin A Building near South Somerset | £62 | £270 |
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 - £17,836

Two storey extension - £88,504

Build a timber frame extension - £26,336

Build a swimming pool - £81,336

Single storey extension - £61,720

Side return extension - £45,280

Install an RSJ - £2,536

Outbuilding - £10,336

Build a Mansard loft conversion - £52,336

Loft conversion - £36,900

Build a kitchen extension - £42,336

Hip to gable loft conversion - £42,336

Granny annexe - £87,336

Garden office - £10,336

Convert a Garage - £16,336

Garage - £18,836

Build a flat roof extension - £22,336

Build a dormer loft conversion - £42,336

Concrete foundations - £6,586

Convert a bungalow loft - £29,336

Convert a basement - £41,280