From £17,428
Need an Extension Builder in BA5? Wattsfield Construction has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £17,724
Trusted and professional extension builder in BA5. Experienced in all extension buildering work and keeping within budget and on quote. practise ha...
From £17,476
K STOBBS BUILDING CONTRACTOR is an established extension buildering business in BA5. We come highly recommended and provide competitive quotes for ...
From £17,684
Trusted and professional extension builder in BA5. Experienced in all extension buildering work and keeping within budget and on quote. MICHAEL PAR...
From £17,356
Inspired Worx is a trusted extension builder serving customers in BA5 and the surrounding area. Contact us to today to get a competitive quote for ...
From £17,628
Colin Clarke building:roofing has been successfully in business for 30 years. A vast amount of skills and knowledge has been gained and used to cre...
From £17,492
Adrian Fowler Property Maintenance & General Building is a trusted extension builder serving customers in BA5 and the surrounding area. Contact us ...
From £18,428
We are a family run small business, we only use fully time served tradespeople. Having been building for 22years a still having a passion for quali...
From £17,268
Trusted and professional extension builder in BA5. Experienced in all extension buildering work and keeping within budget and on quote. Jeremy Blyt...

Underpinning ranges from £17,028 (C O JOYCE LIMITED based in BA16) to £18,428 (Unique Design & Build based in BS39), 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 BA5 by posting a job with HaMuch and we will send it to extension builders in BA5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bath | £32 | £249 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near South Somerset | £62 | £270 |
| Underpin A Building near Frome | £33 | £263 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Weston-super-Mare | £33 | £253 |
| Underpin A Building near Bridgwater | £30 | £236 |
| Underpin A Building near Bristol | £33 | £255 |
| Underpin A Building near Clifton | £33 | £255 |
| 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 - £17,551

Two storey extension - £88,077

Build a timber frame extension - £26,051

Build a swimming pool - £81,051

Single storey extension - £56,024

Side return extension - £42,076

Install an RSJ - £2,251

Outbuilding - £10,051

Build a Mansard loft conversion - £52,051

Loft conversion - £34,230

Build a kitchen extension - £42,051

Hip to gable loft conversion - £42,051

Granny annexe - £87,051

Garden office - £10,051

Convert a Garage - £16,051

Garage - £18,551

Build a flat roof extension - £22,051

Build a dormer loft conversion - £42,051

Concrete foundations - £6,301

Convert a bungalow loft - £29,051

Convert a basement - £38,076