From £18,412
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £17,028
Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in Shildon. No obligation f...
From £17,308
Trusted and professional extension builder in Shildon. Experienced in all extension buildering work and keeping within budget and on quote. DHB Bui...
From £17,332
LJP Roofing are here to help customers who need an Extension Builder in Shildon. We offer a competitive rate to complete all your extension builder...
From £17,244
Trusted and professional extension builder in Shildon. Experienced in all extension buildering work and keeping within budget and on quote. Empire ...
From £17,380
Relax... you have found a reliable extension builder in Shildon. Under Pressure is a friendly and reliable company based in Shildon who consider no...
From £17,260
Trusted and professional extension builder in Shildon. Experienced in all extension buildering work and keeping within budget and on quote. D & G B...
From £17,396
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 £17,420
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £17,028 (KIETH GRAY ROOFING & BUILDING based in TS24) to £18,412 (Radici Construction North East Ltd based in DH1), 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 Shildon by posting a job with HaMuch and we will send it to extension builders in Shildon.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bishop Auckland | £39 | £247 |
| Underpin A Building near Newton Aycliffe | £39 | £227 |
| Underpin A Building near Spennymoor | £38 | £248 |
| Underpin A Building near Darlington | £60 | £222 |
| Underpin A Building near Durham | £47 | £267 |
| Underpin A Building near Stockton-on-Tees | £41 | £228 |
| Underpin A Building near Billingham | £44 | £242 |
| Underpin A Building near Thornaby-on-Tees | £42 | £231 |
| Underpin A Building near Ingleby Barwick | £41 | £228 |
| Underpin A Building near Peterlee | £36 | £230 |
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 - £17,413

Two storey extension - £87,869

Build a timber frame extension - £25,913

Build a swimming pool - £80,913

Single storey extension - £53,256

Side return extension - £40,519

Install an RSJ - £2,113

Outbuilding - £9,913

Build a Mansard loft conversion - £51,913

Loft conversion - £32,933

Build a kitchen extension - £41,913

Hip to gable loft conversion - £41,913

Granny annexe - £86,913

Garden office - £9,913

Convert a Garage - £15,913

Garage - £18,413

Build a flat roof extension - £21,913

Build a dormer loft conversion - £41,913

Concrete foundations - £6,163

Convert a bungalow loft - £28,913

Convert a basement - £36,519