From £17,564
Croft-Hill Building & Joinery is a trusted extension builder serving customers in Spennymoor and the surrounding area. Contact us to today to get a...
From £17,260
Need an Extension Builder in Spennymoor? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
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 £17,236
Need an Extension Builder in Spennymoor? Northern Roofline Solutions has been helping local clients (20 mile radius) with their extension builderin...
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 £17,348
Need to find an Extension Builder near you for all your extension buildering work?
ANWEN CONSTRUCTION provides a local, trusted extension b...
From £17,604
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in Spennymoor. Please contact us for a free, no obligation quote...
From £18,412
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...

Underpinning ranges from £17,236 (Northern Roofline Solutions based in DL14) 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 Spennymoor by posting a job with HaMuch and we will send it to extension builders in Spennymoor.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Spennymoor | £38 | £248 |
| Underpin A Building near Bishop Auckland | £39 | £247 |
| Underpin A Building near Newton Aycliffe | £39 | £227 |
| Underpin A Building near Durham | £47 | £267 |
| Underpin A Building near Chester-le-Street | £35 | £242 |
| Underpin A Building near Peterlee | £35 | £222 |
| Underpin A Building near Darlington | £60 | £222 |
| Underpin A Building near Stanley | £34 | £242 |
| Underpin A Building near Seaham | £34 | £229 |
| Underpin A Building near Washington | £33 | £251 |
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 - £17,562

Two storey extension - £88,092

Build a timber frame extension - £26,062

Build a swimming pool - £81,062

Single storey extension - £56,232

Side return extension - £42,193

Install an RSJ - £2,262

Outbuilding - £10,062

Build a Mansard loft conversion - £52,062

Loft conversion - £34,328

Build a kitchen extension - £42,062

Hip to gable loft conversion - £42,062

Granny annexe - £87,062

Garden office - £10,062

Convert a Garage - £16,062

Garage - £18,562

Build a flat roof extension - £22,062

Build a dormer loft conversion - £42,062

Concrete foundations - £6,312

Convert a bungalow loft - £29,062

Convert a basement - £38,193