From £17,332
Need to find an Extension Builder near you for all your extension buildering work?
Oscar Renn provides a local, trusted extension builderin...
From £17,268
Trusted and professional extension builder in M12. Experienced in all extension buildering work and keeping within budget and on quote. B R M S hav...
From £17,572
Avon Piping Limited are here to help customers who need an Extension Builder in M12. We offer a competitive rate to complete all your extension bui...
From £17,436
Trusted and professional extension builder in M12. Experienced in all extension buildering work and keeping within budget and on quote. AD Installa...
From £17,252
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,236
Need to find an Extension Builder near you for all your extension buildering work?
J K S Builder provides a local, trusted extension builde...
From £17,300
Our building services company Silkrise Construction have ten years’ experience and have been helping customers in Manchester and the surrounding ...
From £17,108
Experienced extension builder ready to quote for your work. MyDestigo is the best extension builder in M12. No obligation free quotes and many happ...
From £17,476
bespoke designers for your new media centre. At last, we’re bringing our stunning conversion knowledge to entertainment installations across the ...
From £17,156
H TIMMINS BUILDING & MAINT is an established extension buildering business in M12. We come highly recommended and provide competitive quotes for yo...

Underpinning ranges from £17,108 (MyDestigo based in M1) to £17,572 (Avon Piping Limited based in M12), 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 M12 by posting a job with HaMuch and we will send it to extension builders in M12.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Manchester | £27 | £204 |
| Underpin A Building near Reddish | £29 | £202 |
| Underpin A Building near Droylsden | £30 | £203 |
| Underpin A Building near Old Trafford | £27 | £203 |
| Underpin A Building near Denton | £30 | £201 |
| Underpin A Building near Failsworth | £30 | £202 |
| Underpin A Building near Salford | £28 | £203 |
| Underpin A Building near Stretford | £27 | £203 |
| Underpin A Building near Dukinfield | £30 | £201 |
| Underpin A Building near Tameside | £30 | £201 |
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 - £17,314

Two storey extension - £87,720

Build a timber frame extension - £25,814

Build a swimming pool - £80,814

Single storey extension - £51,272

Side return extension - £39,403

Install an RSJ - £2,014

Outbuilding - £9,814

Build a Mansard loft conversion - £51,814

Loft conversion - £32,003

Build a kitchen extension - £41,814

Hip to gable loft conversion - £41,814

Granny annexe - £86,814

Garden office - £9,814

Convert a Garage - £15,814

Garage - £18,314

Build a flat roof extension - £21,814

Build a dormer loft conversion - £41,814

Concrete foundations - £6,064

Convert a bungalow loft - £28,814

Convert a basement - £35,403