From £17,372
Hi I'm darren
I'm a fully qualified time served joiner I have been doing it for 30 years and have been self employed for 12 years ...
From £17,220
S & K Windows are here to help customers who need an Extension Builder in DL6. We offer a competitive rate to complete all your extension builderin...
From £17,332
34years in the building trade small works to extensions vast experience of older buildings including listed properties
From £17,380
Relax... you have found a reliable extension builder in DL6. Under Pressure is a friendly and reliable company based in DL6 who consider no job as ...
From £17,452
Barlow Construction Limited are here to help customers who need an Extension Builder in DL6. We offer a competitive rate to complete all your exten...
From £17,140
Lee Construction (LDG) Ltd is a trusted extension builder serving customers in DL6 and the surrounding area. Contact us to today to get a competiti...
From £17,708
Experienced extension builder ready to quote for your work. pidesigns is the best extension builder in DL6. No obligation free quotes and many happ...
From £17,244
Trusted and professional extension builder in DL6. Experienced in all extension buildering work and keeping within budget and on quote. Empire Buil...
From £17,260
Trusted and professional extension builder in DL6. Experienced in all extension buildering work and keeping within budget and on quote. D & G Build...
From £17,348
Need to find an Extension Builder near you for all your extension buildering work?
Victory Procurement Solutions provides a local, trusted...

Underpinning ranges from £17,140 (Lee Construction (LDG) Ltd based in DL10) to £17,708 (Pidesigns based in DL1), 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 DL6 by posting a job with HaMuch and we will send it to extension builders in DL6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Ingleby Barwick | £41 | £228 |
| Underpin A Building near Thornaby-on-Tees | £42 | £231 |
| Underpin A Building near Darlington | £60 | £222 |
| Underpin A Building near Stockton-on-Tees | £41 | £228 |
| Underpin A Building near Middlesbrough | £43 | £236 |
| Underpin A Building near Eston | £42 | £241 |
| Underpin A Building near Billingham | £44 | £242 |
| Underpin A Building near Newton Aycliffe | £39 | £227 |
| Underpin A Building near Redcar & Cleveland | £43 | £254 |
| Underpin A Building near Redcar | £42 | £240 |
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 - £17,346

Two storey extension - £87,768

Build a timber frame extension - £25,846

Build a swimming pool - £80,846

Single storey extension - £51,912

Side return extension - £39,763

Install an RSJ - £2,046

Outbuilding - £9,846

Build a Mansard loft conversion - £51,846

Loft conversion - £32,303

Build a kitchen extension - £41,846

Hip to gable loft conversion - £41,846

Granny annexe - £86,846

Garden office - £9,846

Convert a Garage - £15,846

Garage - £18,346

Build a flat roof extension - £21,846

Build a dormer loft conversion - £41,846

Concrete foundations - £6,096

Convert a bungalow loft - £28,846

Convert a basement - £35,763