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J GREEN PLASTERING LTD are here to help customers who need an Extension Builder in BS30. We offer a competitive rate to complete all your extension...
Sarah Godwin
24 7 BUILDING SOLUTIONS LTD is a trusted extension builder serving customers in BS30 and the surrounding area. Contact us to today to get a competi...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Gary
GARY G BOND LIMITED are here to help customers who need an Extension Builder in BS30. We offer a competitive rate to complete all your extension bu...
HYATT BUILDING SERVICES are here to help customers who need an Extension Builder in BS30. We offer a competitive rate to complete all your extensio...
Concept Solutions Bristol Ltd is an established and experienced local extension builder in BS30. Please contact us for a free, no obligation quote ...
Martin Malby
Need to find an Extension Builder near you for all your extension buildering work?
ST GEORGES HOMES (UK) LTD provides a local, trusted exte...
S JOYCE BUILDING are here to help customers who need an Extension Builder in BS30. We offer a competitive rate to complete all your extension build...
Samet Mata
Hello, we are small company that we can do all building jobs like roofing, loft conversion,Garage conversion, extension, house renovation, slabs an...
Relax... you have found a reliable extension builder in BS30. ASHWIN CONSTRUCTION is a friendly and reliable company based in BS30 who consider no ...

Underpinning ranges from £17,252 (Concept Solutions Bristol Ltd based in BS15) to £18,044 (GARY G BOND LIMITED based in BS16), 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 BS30 by posting a job with HaMuch and we will send it to extension builders in BS30.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Kingswood | £34 | £257 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Bristol | £33 | £255 |
| Underpin A Building near South Gloucestershire | £34 | £260 |
| Underpin A Building near Clifton | £33 | £255 |
| Underpin A Building near Yate | £34 | £263 |
| Underpin A Building near Bradley Stoke | £34 | £259 |
| Underpin A Building near Bath | £32 | £249 |
| Underpin A Building near Chippenham | £34 | £258 |
| Underpin A Building near Portishead | £33 | £247 |
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 - £17,584

Two storey extension - £88,126

Build a timber frame extension - £26,084

Build a swimming pool - £81,084

Single storey extension - £56,680

Side return extension - £42,445

Install an RSJ - £2,284

Outbuilding - £10,084

Build a Mansard loft conversion - £52,084

Loft conversion - £34,538

Build a kitchen extension - £42,084

Hip to gable loft conversion - £42,084

Granny annexe - £87,084

Garden office - £10,084

Convert a Garage - £16,084

Garage - £18,584

Build a flat roof extension - £22,084

Build a dormer loft conversion - £42,084

Concrete foundations - £6,334

Convert a bungalow loft - £29,084

Convert a basement - £38,445