From £17,500
Relax... you have found a reliable extension builder in DH7. AA Paving is a friendly and reliable company based in DH7 who consider no job as too b...
From £18,412
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £17,260
Need an Extension Builder in DH7? K & J Property has been helping local clients (20 mile radius) with their extension buildering jobs for many year...
From £17,604
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in DH7. Please contact us for a free, no obligation quote and co...
From £17,772
We have 20+ years experience through all trades supplied.
Yes, we are an Advanced Vaillant installer.
Yes we are members of S...
From £17,412
Need an Extension Builder in DH7? Spacesaver Loft Storage has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £17,332
Experienced extension builder ready to quote for your work. L F BUILDING & JOINERY is the best extension builder in DH7. No obligation free quotes ...
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 £17,564
Croft-Hill Building & Joinery is a trusted extension builder serving customers in DH7 and the surrounding area. Contact us to today to get a compet...
From £17,396
S & A W Joinery & Construction is a trusted extension builder serving customers in DH7 and the surrounding area. Contact us to today to get a compe...

Underpinning ranges from £17,260 (K & J Property based in DH7) 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 DH7 by posting a job with HaMuch and we will send it to extension builders in DH7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Durham | £42 | £236 |
| Underpin A Building near Chester-le-Street | £31 | £213 |
| Underpin A Building near Stanley | £29 | £206 |
| Underpin A Building near Spennymoor | £33 | £220 |
| Underpin A Building near Consett | £28 | £202 |
| Underpin A Building near Bishop Auckland | £34 | £218 |
| Underpin A Building near Washington | £29 | £221 |
| Underpin A Building near Sunderland | £29 | £220 |
| Underpin A Building near Gateshead | £29 | £206 |
| Underpin A Building near Seaham | £30 | £201 |
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 - £17,579

Two storey extension - £88,119

Build a timber frame extension - £26,079

Build a swimming pool - £81,079

Single storey extension - £56,584

Side return extension - £42,391

Install an RSJ - £2,279

Outbuilding - £10,079

Build a Mansard loft conversion - £52,079

Loft conversion - £34,493

Build a kitchen extension - £42,079

Hip to gable loft conversion - £42,079

Granny annexe - £87,079

Garden office - £10,079

Convert a Garage - £16,079

Garage - £18,579

Build a flat roof extension - £22,079

Build a dormer loft conversion - £42,079

Concrete foundations - £6,329

Convert a bungalow loft - £29,079

Convert a basement - £38,391