From £17,612
Bristol Building Co.Ltd is an established and experienced local extension builder in BS7. Please contact us for a free, no obligation quote and com...
From £16,820
Experienced extension builder ready to quote for your work. M N HALL PROPERTY MAINTENANCE is the best extension builder in BS7. No obligation free ...
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...
From £18,020
Established in 2004 , our small but friendly team have worked on numerous projects across the city and surrounding area.
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 £17,732
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,420
Relax... you have found a reliable extension builder in BS7. RD Pope Construction is a friendly and reliable company based in BS7 who consider no j...
From £17,396
Home By Design Ltd is a trusted extension builder serving customers in BS7 and the surrounding area. Contact us to today to get a competitive quote...
From £17,820
Trusted and professional extension builder in BS7. Experienced in all extension buildering work and keeping within budget and on quote. OTF Facilit...
From £17,460
Relax... you have found a reliable extension builder in BS7. Greenhorn Homes is a friendly and reliable company based in BS7 who consider no job as...

Underpinning ranges from £16,820 (M N HALL PROPERTY MAINTENANCE based in BS7) to £18,020 (Clever construction based in BS7), 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 BS7 by posting a job with HaMuch and we will send it to extension builders in BS7.
| 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 South Gloucestershire | £34 | £260 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Portishead | £33 | £247 |
| Underpin A Building near Yate | £34 | £263 |
| Underpin A Building near North Somerset | £32 | £245 |
| Underpin A Building near Bath | £32 | £249 |
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 - £17,560

Two storey extension - £88,090

Build a timber frame extension - £26,060

Build a swimming pool - £81,060

Single storey extension - £56,200

Side return extension - £42,175

Install an RSJ - £2,260

Outbuilding - £10,060

Build a Mansard loft conversion - £52,060

Loft conversion - £34,313

Build a kitchen extension - £42,060

Hip to gable loft conversion - £42,060

Granny annexe - £87,060

Garden office - £10,060

Convert a Garage - £16,060

Garage - £18,560

Build a flat roof extension - £22,060

Build a dormer loft conversion - £42,060

Concrete foundations - £6,310

Convert a bungalow loft - £29,060

Convert a basement - £38,175