From £17,412
STEVE MULVANEY BUILDING are here to help customers who need an Extension Builder in SR7. We offer a competitive rate to complete all your extension...
From £16,660
We provide expert advice on building defects and cost effective environmental friendly solutions throughout the North East of England. Our bu...
From £17,332
LJP Roofing are here to help customers who need an Extension Builder in SR7. We offer a competitive rate to complete all your extension buildering ...
From £17,308
Trusted and professional extension builder in SR7. Experienced in all extension buildering work and keeping within budget and on quote. DHB Builder...
From £17,412
Our building services company Home Grown NE has been providing professional, trustworthy building services to customers throughout the North-East f...
From £17,436
Building Craft Ltd is an established extension buildering business in SR7. We come highly recommended and provide competitive quotes for your work....
From £17,484
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £20,492
Trusted and professional extension builder in SR7. Experienced in all extension buildering work and keeping within budget and on quote. David Robe...
From £17,604
RAINTON CONSTRUCTION LTD is an established and experienced local extension builder in SR7. Please contact us for a free, no obligation quote and co...
From £18,380
Established 1983 . For more info visit web site please . Worked in industry for over 40 years.

Underpinning ranges from £16,660 (Dry Tec based in DH6) to £20,492 (David Robertson builders based in Sr4), 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 SR7 by posting a job with HaMuch and we will send it to extension builders in SR7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Seaham | £34 | £229 |
| Underpin A Building near Peterlee | £35 | £222 |
| Underpin A Building near Sunderland | £33 | £251 |
| Underpin A Building near Washington | £33 | £251 |
| Underpin A Building near Durham | £47 | £267 |
| Underpin A Building near Chester-le-Street | £35 | £242 |
| Underpin A Building near South Tyneside | £34 | £261 |
| Underpin A Building near Jarrow | £34 | £261 |
| Underpin A Building near Hartlepool | £40 | £236 |
| Underpin A Building near South Shields | £36 | £257 |
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 - £17,752

Two storey extension - £88,378

Build a timber frame extension - £26,252

Build a swimming pool - £81,252

Single storey extension - £60,040

Side return extension - £44,335

Install an RSJ - £2,452

Outbuilding - £10,252

Build a Mansard loft conversion - £52,252

Loft conversion - £36,113

Build a kitchen extension - £42,252

Hip to gable loft conversion - £42,252

Granny annexe - £87,252

Garden office - £10,252

Convert a Garage - £16,252

Garage - £18,752

Build a flat roof extension - £22,252

Build a dormer loft conversion - £42,252

Concrete foundations - £6,502

Convert a bungalow loft - £29,252

Convert a basement - £40,335