From £17,388
Broadley Construction is an established extension buildering business in Rawtenstall. We come highly recommended and provide competitive quotes for...
From £17,356
Rawtenstall, BB4
Experienced extension builder ready to quote for your work. SMH Joinery & Building is the best extension builder in Rawtenstall. No obligation free...
From £17,068
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,348
Darren Gaynor is a trusted extension builder serving customers in Rawtenstall and the surrounding area. Contact us to today to get a competitive qu...
From £17,124
Garage Conversions by Joe Hanlon is a trusted extension builder serving customers in Rawtenstall and the surrounding area. Contact us to today to g...
From £17,228
Experienced extension builder ready to quote for your work. TowerView Properties is the best extension builder in Rawtenstall. No obligation free q...
From £17,308
Need to find an Extension Builder near you for all your extension buildering work?
J. Grimshaw provides a local, trusted extension builderi...
From £17,532
Need to find an Extension Builder near you for all your extension buildering work?
Ray's Property Services provides a local, trusted extens...
From £17,436
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,092
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £17,068 (Passive Building Structures based in BL0) to £17,532 (Ray's Property Services based in BB11), 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 Rawtenstall by posting a job with HaMuch and we will send it to extension builders in Rawtenstall.
"Underpinning" - ACCRINGTON, job posted 04/06/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rawtenstall | £31 | £230 |
| Underpin A Building near Accrington | £33 | £245 |
| Underpin A Building near Burnley | £29 | £219 |
| Underpin A Building near Darwen | £34 | £253 |
| Underpin A Building near Bury | £30 | £220 |
| Underpin A Building near Heywood | £30 | £222 |
| Underpin A Building near Rochdale | £30 | £221 |
| Underpin A Building near Blackburn | £34 | £247 |
| Underpin A Building near Nelson | £27 | £214 |
| Underpin A Building near Radcliffe | £30 | £220 |
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 - £17,288

Two storey extension - £87,682

Build a timber frame extension - £25,788

Build a swimming pool - £80,788

Single storey extension - £50,760

Side return extension - £39,115

Install an RSJ - £1,988

Outbuilding - £9,788

Build a Mansard loft conversion - £51,788

Loft conversion - £31,763

Build a kitchen extension - £41,788

Hip to gable loft conversion - £41,788

Granny annexe - £86,788

Garden office - £9,788

Convert a Garage - £15,788

Garage - £18,288

Build a flat roof extension - £21,788

Build a dormer loft conversion - £41,788

Concrete foundations - £6,038

Convert a bungalow loft - £28,788

Convert a basement - £35,115