From £17,236
A M BUILDING MAINTAINANCE is an established extension buildering business in BB9. We come highly recommended and provide competitive quotes for you...
From £17,420
RJ BUILDERS CONSTRUCTION - Loft Conversions and Plastering specialists
From £17,076
Need to find an Extension Builder near you for all your extension buildering work?
Ken Thomas Property Repairs provides a local, trusted ex...
From £17,188
Experienced extension builder ready to quote for your work. Garage Door Services Lancashire is the best extension builder in BB9. No obligation fre...
From £17,116
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,452
Pennine Building Services are here to help customers who need an Extension Builder in BB9. We offer a competitive rate to complete all your extensi...
From £17,156
Need an Extension Builder in BB9? M.A Martins has been helping local clients (20 mile radius) with their extension buildering jobs for many years. ...
From £17,204
Need to find an Extension Builder near you for all your extension buildering work?
Usaim Builders provides a local, trusted extension build...
From £17,140
Relax... you have found a reliable extension builder in BB9. CROSS CONSTRUCTION LTD is a friendly and reliable company based in BB9 who consider no...
From £17,492
Need an Extension Builder in BB9? CPS has been helping local clients (20 mile radius) with their extension buildering jobs for many years. Get a qu...

Underpinning ranges from £17,076 (Ken Thomas Property Repairs based in BB9) to £17,492 (CPS based in BB9), 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 BB9 by posting a job with HaMuch and we will send it to extension builders in BB9.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Nelson | £27 | £214 |
| Underpin A Building near Burnley | £29 | £219 |
| Underpin A Building near Accrington | £33 | £243 |
| Underpin A Building near Rawtenstall | £29 | £213 |
| Underpin A Building near Calderdale | £33 | £253 |
| Underpin A Building near Blackburn | £33 | £246 |
| Underpin A Building near Keighley | £30 | £226 |
| Underpin A Building near Darwen | £34 | £253 |
| Underpin A Building near Bingley | £30 | £226 |
| Underpin A Building near Rochdale | £30 | £221 |
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 - £17,248

Two storey extension - £87,622

Build a timber frame extension - £25,748

Build a swimming pool - £80,748

Single storey extension - £49,960

Side return extension - £38,665

Install an RSJ - £1,948

Outbuilding - £9,748

Build a Mansard loft conversion - £51,748

Loft conversion - £31,388

Build a kitchen extension - £41,748

Hip to gable loft conversion - £41,748

Granny annexe - £86,748

Garden office - £9,748

Convert a Garage - £15,748

Garage - £18,248

Build a flat roof extension - £21,748

Build a dormer loft conversion - £41,748

Concrete foundations - £5,998

Convert a bungalow loft - £28,748

Convert a basement - £34,665