From £17,980
On time/ professional/ time served/trustworthy
From £17,492
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £18,412
Trusted General Builders in Durham From small fixes to full renovations, Radici Construction delivers quality workmanship, clear communication,...
From £17,028
Experienced extension builder ready to quote for your work. KIETH GRAY ROOFING & BUILDING is the best extension builder in Trimdon. No obligation f...
From £17,308
Trusted and professional extension builder in Trimdon. Experienced in all extension buildering work and keeping within budget and on quote. DHB Bui...
From £17,436
Building Craft Ltd is an established extension buildering business in Trimdon. We come highly recommended and provide competitive quotes for your w...
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 £17,332
LJP Roofing are here to help customers who need an Extension Builder in Trimdon. We offer a competitive rate to complete all your extension builder...
From £17,508
Need to find an Extension Builder near you for all your extension buildering work?
TK Builders provides a local, trusted extension builderi...
From £17,436
D H P Builders is an established extension buildering business in Trimdon. We come highly recommended and provide competitive quotes for your work....

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 Trimdon by posting a job with HaMuch and we will send it to extension builders in Trimdon.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Peterlee | £36 | £230 |
| Underpin A Building near Spennymoor | £38 | £248 |
| Underpin A Building near Durham | £47 | £267 |
| Underpin A Building near Hartlepool | £40 | £236 |
| Underpin A Building near Seaham | £35 | £235 |
| Underpin A Building near Billingham | £44 | £242 |
| Underpin A Building near Newton Aycliffe | £39 | £227 |
| Underpin A Building near Stockton-on-Tees | £41 | £228 |
| Underpin A Building near Bishop Auckland | £39 | £247 |
| Underpin A Building near Middlesbrough | £43 | £236 |
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 - £17,542

Two storey extension - £88,062

Build a timber frame extension - £26,042

Build a swimming pool - £81,042

Single storey extension - £55,832

Side return extension - £41,968

Install an RSJ - £2,242

Outbuilding - £10,042

Build a Mansard loft conversion - £52,042

Loft conversion - £34,140

Build a kitchen extension - £42,042

Hip to gable loft conversion - £42,042

Granny annexe - £87,042

Garden office - £10,042

Convert a Garage - £16,042

Garage - £18,542

Build a flat roof extension - £22,042

Build a dormer loft conversion - £42,042

Concrete foundations - £6,292

Convert a bungalow loft - £29,042

Convert a basement - £37,968