From £17,820
Trusted and professional extension builder in BS6. Experienced in all extension buildering work and keeping within budget and on quote. OTF Facilit...
From £17,708
Need an Extension Builder in BS6? Oasys Property Solutions has been helping local clients (20 mile radius) with their extension buildering jobs for...
From £17,436
Relax... you have found a reliable extension builder in BS6. Morrisons Building Services is a friendly and reliable company based in BS6 who consid...
From £17,460
Relax... you have found a reliable extension builder in BS6. Greenhorn Homes is a friendly and reliable company based in BS6 who consider no job as...
From £17,572
We are an experienced and trusted Bristol based building and renovations company, covering all aspects of small to large domestic projects. Bathroo...
From £17,540
Relax... you have found a reliable extension builder in BS6. Moon DESIGN is a friendly and reliable company based in BS6 who consider no job as too...
From £17,532
Need an Extension Builder in BS6? Ashford Design and Build Limited has been helping local clients (20 mile radius) with their extension buildering ...
From £17,316
Berkeley Place are here to help customers who need an Extension Builder in BS6. We offer a competitive rate to complete all your extension builderi...
From £17,652
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,668
We are all the professional, reliable , expert tradespeople you need for your project big or small. We have a reputation within Bristol and the Sou...

Underpinning ranges from £17,316 (Berkeley Place based in BS8) to £17,820 (OTF Facilities based in BS6), 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 BS6 by posting a job with HaMuch and we will send it to extension builders in BS6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bristol | £33 | £255 |
| Underpin A Building near Clifton | £33 | £255 |
| Underpin A Building near Kingswood | £34 | £257 |
| Underpin A Building near Bradley Stoke | £34 | £259 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Portishead | £33 | £247 |
| Underpin A Building near South Gloucestershire | £34 | £260 |
| Underpin A Building near Yate | £34 | £263 |
| Underpin A Building near North Somerset | £32 | £245 |
| 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 - £17,570

Two storey extension - £88,106

Build a timber frame extension - £26,070

Build a swimming pool - £81,070

Single storey extension - £56,408

Side return extension - £42,292

Install an RSJ - £2,270

Outbuilding - £10,070

Build a Mansard loft conversion - £52,070

Loft conversion - £34,410

Build a kitchen extension - £42,070

Hip to gable loft conversion - £42,070

Granny annexe - £87,070

Garden office - £10,070

Convert a Garage - £16,070

Garage - £18,570

Build a flat roof extension - £22,070

Build a dormer loft conversion - £42,070

Concrete foundations - £6,320

Convert a bungalow loft - £29,070

Convert a basement - £38,292