From £17,244
Trusted and professional extension builder in DL7. Experienced in all extension buildering work and keeping within budget and on quote. Empire Buil...
From £17,380
Relax... you have found a reliable extension builder in DL7. Under Pressure is a friendly and reliable company based in DL7 who consider no job as ...
From £17,260
Trusted and professional extension builder in DL7. Experienced in all extension buildering work and keeping within budget and on quote. D & G Build...
From £17,220
S & K Windows are here to help customers who need an Extension Builder in DL7. We offer a competitive rate to complete all your extension builderin...
From £17,348
Need to find an Extension Builder near you for all your extension buildering work?
Victory Procurement Solutions provides a local, trusted...
From £17,132
Partek Site Services is an established and experienced local extension builder in DL7. Please contact us for a free, no obligation quote and compet...
From £16,780
Relax... you have found a reliable extension builder in DL7. B A Moss Builders is a friendly and reliable company based in DL7 who consider no job ...
From £17,260
Need to find an Extension Builder near you for all your extension buildering work?
Extra Space Developments Ltd provides a local, trusted e...
From £17,452
Barlow Construction Limited are here to help customers who need an Extension Builder in DL7. We offer a competitive rate to complete all your exten...
From £17,428
Woodale Construction Nidderdale is an established extension buildering business in DL7. We come highly recommended and provide competitive quotes ...

Underpinning ranges from £16,780 (B A Moss Builders based in YO61) to £17,452 (Barlow Construction Limited based in YO7), 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 DL7 by posting a job with HaMuch and we will send it to extension builders in DL7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Darlington | £60 | £222 |
| Underpin A Building near Ingleby Barwick | £41 | £228 |
| Underpin A Building near Thornaby-on-Tees | £42 | £231 |
| Underpin A Building near Stockton-on-Tees | £41 | £228 |
| Underpin A Building near Middlesbrough | £43 | £236 |
| Underpin A Building near Newton Aycliffe | £39 | £227 |
| Underpin A Building near Billingham | £44 | £242 |
| Underpin A Building near Eston | £42 | £241 |
| Underpin A Building near Bishop Auckland | £39 | £247 |
| Underpin A Building near Harrogate | £29 | £225 |
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 - £17,250

Two storey extension - £87,626

Build a timber frame extension - £25,750

Build a swimming pool - £80,750

Single storey extension - £50,008

Side return extension - £38,692

Install an RSJ - £1,950

Outbuilding - £9,750

Build a Mansard loft conversion - £51,750

Loft conversion - £31,410

Build a kitchen extension - £41,750

Hip to gable loft conversion - £41,750

Granny annexe - £86,750

Garden office - £9,750

Convert a Garage - £15,750

Garage - £18,250

Build a flat roof extension - £21,750

Build a dormer loft conversion - £41,750

Concrete foundations - £6,000

Convert a bungalow loft - £28,750

Convert a basement - £34,692