From £17,108
Relax... you have found a reliable extension builder in M23. R A C Gas is a friendly and reliable company based in M23 who consider no job as too b...
From £17,508
Ethos Property Developments Limited is an established extension buildering business in M23. We come highly recommended and provide competitive quot...
From £16,460
Member since November 2019
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,276
Relax... you have found a reliable extension builder in M23. David Anderson Builders is a friendly and reliable company based in M23 who consider n...
From £17,292
Need to find an Extension Builder near you for all your extension buildering work?
DC Contractors provides a local, trusted extension build...
From £17,460
Need to find an Extension Builder near you for all your extension buildering work?
ESBP Specialists Ltd provides a local, trusted extension...
From £17,348
Trusted and professional extension builder in M23. Experienced in all extension buildering work and keeping within budget and on quote. We Build ha...
From £17,108
Need an Extension Builder in M23? MK Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years. ...
From £17,132
Trusted and professional extension builder in M23. Experienced in all extension buildering work and keeping within budget and on quote. Fit-on Gara...

Underpinning ranges from £16,460 (Aquatec Builder based in OL10) to £17,508 (Ethos Property Developments Limited based in SK15), 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 M23 by posting a job with HaMuch and we will send it to extension builders in M23.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Wythenshawe | £31 | £229 |
| Underpin A Building near Gatley | £31 | £230 |
| Underpin A Building near Sale | £32 | £235 |
| Underpin A Building near Altrincham | £32 | £228 |
| Underpin A Building near Trafford | £32 | £235 |
| Underpin A Building near Stretford | £32 | £235 |
| Underpin A Building near Old Trafford | £32 | £236 |
| Underpin A Building near Cheadle Hulme | £31 | £232 |
| Underpin A Building near Urmston | £32 | £231 |
| Underpin A Building near Wilmslow | £31 | £230 |
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 - £17,138

Two storey extension - £87,456

Build a timber frame extension - £25,638

Build a swimming pool - £80,638

Single storey extension - £47,752

Side return extension - £37,423

Install an RSJ - £1,838

Outbuilding - £9,638

Build a Mansard loft conversion - £51,638

Loft conversion - £30,353

Build a kitchen extension - £41,638

Hip to gable loft conversion - £41,638

Granny annexe - £86,638

Garden office - £9,638

Convert a Garage - £15,638

Garage - £18,138

Build a flat roof extension - £21,638

Build a dormer loft conversion - £41,638

Concrete foundations - £5,888

Convert a bungalow loft - £28,638

Convert a basement - £33,423