From £17,380
J.collinson is an established and experienced local extension builder in Barnard Castle. Please contact us for a free, no obligation quote and comp...
From £17,316
DANNY WOOD BUILDERS LIMITED are here to help customers who need an Extension Builder in Barnard Castle. We offer a competitive rate to complete all...
From £17,236
Need an Extension Builder in Barnard Castle? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension build...
From £17,468
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,420
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,540
Need to find an Extension Builder near you for all your extension buildering work?
SBC (BUILDERS) LIMITED provides a local, trusted extensi...
From £17,132
Partek Site Services is an established and experienced local extension builder in Barnard Castle. Please contact us for a free, no obligation quote...
From £17,228
GURKHA CONSTRUCTION SVCS LTD is a trusted extension builder serving customers in Barnard Castle and the surrounding area. Contact us to today to ge...
From £17,564
Croft-Hill Building & Joinery is a trusted extension builder serving customers in Barnard Castle and the surrounding area. Contact us to today to g...
From £17,348
Need to find an Extension Builder near you for all your extension buildering work?
Victory Procurement Solutions provides a local, trusted...

Underpinning ranges from £17,132 (Partek Site Services based in DL2) to £17,564 (Croft-Hill Building & Joinery based in DL15), 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 Barnard Castle by posting a job with HaMuch and we will send it to extension builders in Barnard Castle.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bishop Auckland | £34 | £218 |
| Underpin A Building near Newton Aycliffe | £34 | £200 |
| Underpin A Building near Darlington | £53 | £194 |
| Underpin A Building near Spennymoor | £33 | £220 |
| Underpin A Building near Consett | £28 | £202 |
| Underpin A Building near Durham | £42 | £236 |
| Underpin A Building near Stanley | £29 | £206 |
| Underpin A Building near Chester-le-Street | £31 | £213 |
| Underpin A Building near Stockton-on-Tees | £35 | £201 |
| Underpin A Building near Ingleby Barwick | £36 | £202 |
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 - £17,363

Two storey extension - £87,795

Build a timber frame extension - £25,863

Build a swimming pool - £80,863

Single storey extension - £52,264

Side return extension - £39,961

Install an RSJ - £2,063

Outbuilding - £9,863

Build a Mansard loft conversion - £51,863

Loft conversion - £32,468

Build a kitchen extension - £41,863

Hip to gable loft conversion - £41,863

Granny annexe - £86,863

Garden office - £9,863

Convert a Garage - £15,863

Garage - £18,363

Build a flat roof extension - £21,863

Build a dormer loft conversion - £41,863

Concrete foundations - £6,113

Convert a bungalow loft - £28,863

Convert a basement - £35,961