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 £17,412
STEVE MULVANEY BUILDING are here to help customers who need an Extension Builder in SR3. We offer a competitive rate to complete all your extension...
From £20,492
Trusted and professional extension builder in SR3. Experienced in all extension buildering work and keeping within budget and on quote. David Robe...
From £17,436
Building Craft Ltd is an established extension buildering business in SR3. 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 £18,380
Established 1983 . For more info visit web site please . Worked in industry for over 40 years.
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 £17,284
Relax... you have found a reliable extension builder in SR3. ORILLA CONSTRUCTION SOLUTIONS is a friendly and reliable company based in SR3 who cons...
From £17,348
Skyline Loft Conversions (NE) Ltd is an established and experienced local extension builder in SR3. Please contact us for a free, no obligation quo...
From £17,780
HST ENG LTD is an established extension buildering business in SR3. We come highly recommended and provide competitive quotes for your work.

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 SR3 by posting a job with HaMuch and we will send it to extension builders in SR3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Sunderland | £33 | £251 |
| Underpin A Building near Seaham | £34 | £229 |
| Underpin A Building near Washington | £33 | £251 |
| Underpin A Building near South Tyneside | £34 | £261 |
| Underpin A Building near Jarrow | £34 | £261 |
| Underpin A Building near Chester-le-Street | £35 | £242 |
| Underpin A Building near Hebburn | £34 | £244 |
| Underpin A Building near South Shields | £36 | £257 |
| Underpin A Building near Peterlee | £35 | £222 |
| Underpin A Building near Durham | £47 | £267 |
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 - £17,769

Two storey extension - £88,403

Build a timber frame extension - £26,269

Build a swimming pool - £81,269

Single storey extension - £60,376

Side return extension - £44,524

Install an RSJ - £2,469

Outbuilding - £10,269

Build a Mansard loft conversion - £52,269

Loft conversion - £36,270

Build a kitchen extension - £42,269

Hip to gable loft conversion - £42,269

Granny annexe - £87,269

Garden office - £10,269

Convert a Garage - £16,269

Garage - £18,769

Build a flat roof extension - £22,269

Build a dormer loft conversion - £42,269

Concrete foundations - £6,519

Convert a bungalow loft - £29,269

Convert a basement - £40,524