From £18,412
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
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 £17,396
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
2 reviews
From £17,764
30 years experience In building . Plastering and colour renders
"Totally unreliable, takes your money and doesn't finish the job." - NORTH EAST,reviewed 04/10/17, L S
From £17,260
Trusted and professional extension builder in TS20. Experienced in all extension buildering work and keeping within budget and on quote. D & G Buil...
From £17,604
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in TS20. Please contact us for a free, no obligation quote and c...
From £17,244
Trusted and professional extension builder in TS20. Experienced in all extension buildering work and keeping within budget and on quote. Empire Bui...
From £17,028
Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in TS20. No obligation free...
From £17,308
Trusted and professional extension builder in TS20. Experienced in all extension buildering work and keeping within budget and on quote. DHB Builde...
From £17,332
LJP Roofing are here to help customers who need an Extension Builder in TS20. We offer a competitive rate to complete all your extension buildering...

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 TS20 by posting a job with HaMuch and we will send it to extension builders in TS20.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Stockton-on-Tees | £41 | £228 |
| Underpin A Building near Billingham | £44 | £242 |
| Underpin A Building near Middlesbrough | £43 | £236 |
| Underpin A Building near Thornaby-on-Tees | £42 | £231 |
| Underpin A Building near Ingleby Barwick | £41 | £228 |
| Underpin A Building near Eston | £42 | £241 |
| Underpin A Building near Hartlepool | £40 | £236 |
| Underpin A Building near Redcar & Cleveland | £43 | £254 |
| Underpin A Building near Redcar | £42 | £240 |
| Underpin A Building near Newton Aycliffe | £39 | £227 |
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 - £17,477

Two storey extension - £87,965

Build a timber frame extension - £25,977

Build a swimming pool - £80,977

Single storey extension - £54,536

Side return extension - £41,239

Install an RSJ - £2,177

Outbuilding - £9,977

Build a Mansard loft conversion - £51,977

Loft conversion - £33,533

Build a kitchen extension - £41,977

Hip to gable loft conversion - £41,977

Granny annexe - £86,977

Garden office - £9,977

Convert a Garage - £15,977

Garage - £18,477

Build a flat roof extension - £21,977

Build a dormer loft conversion - £41,977

Concrete foundations - £6,227

Convert a bungalow loft - £28,977

Convert a basement - £37,239