We send your job to ALL DL15 extension builders
Available extension builders in DL15 reply
Select an affordable extension builder
From £17,564
Croft-Hill Building & Joinery is a trusted extension builder serving customers in DL15 and the surrounding area. Contact us to today to get a compe...
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 £17,540
Need to find an Extension Builder near you for all your extension buildering work?
SBC (BUILDERS) LIMITED provides a local, trusted extensi...

Underpinning ranges from £17,468 (D. Simpson Roof Rite Services based in DL14) 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 DL15 by posting a job with HaMuch and we will send it to extension builders in DL15.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Bishop Auckland | £38 | £248 |
| Underpin A Building near Spennymoor | £37 | £249 |
| Underpin A Building near Durham | £47 | £267 |
| Underpin A Building near Newton Aycliffe | £38 | £225 |
| Underpin A Building near Consett | £33 | £241 |
| Underpin A Building near Stanley | £34 | £242 |
| Underpin A Building near Chester-le-Street | £35 | £242 |
| Underpin A Building near Darlington | £60 | £222 |
| Underpin A Building near Washington | £33 | £254 |
| Underpin A Building near Sunderland | £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 - £17,524

Two storey extension - £88,036

Build a timber frame extension - £26,024

Build a swimming pool - £81,024

Single storey extension - £55,480

Side return extension - £41,770

Install an RSJ - £2,224

Outbuilding - £10,024

Build a Mansard loft conversion - £52,024

Loft conversion - £33,975

Build a kitchen extension - £42,024

Hip to gable loft conversion - £42,024

Granny annexe - £87,024

Garden office - £10,024

Convert a Garage - £16,024

Garage - £18,524

Build a flat roof extension - £22,024

Build a dormer loft conversion - £42,024

Concrete foundations - £6,274

Convert a bungalow loft - £29,024

Convert a basement - £37,770