From £17,500
SBA Facilities is a family run business founded by Director, Josef who has over 25 years of experience with the corporate, commercial, and domestic...
From £17,532
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...
From £17,548
HAROLDS CORP is a trusted extension builder serving customers in WN7 and the surrounding area. Contact us to today to get a competitive quote for e...
From £16,956
APS pointing and property maintenance offers a complete building service from small patch pointing to full refurb or extensions. Competitiv...
From £17,300
Need to find an Extension Builder near you for all your extension buildering work?
J R Building Services provides a local, trusted extensio...
From £17,276
Relax... you have found a reliable extension builder in WN7. David Anderson Builders is a friendly and reliable company based in WN7 who consider n...
From £17,220
Direct Building Services is an established and experienced local extension builder in WN7. Please contact us for a free, no obligation quote and co...
From £17,316
Construction Covered is a trusted extension builder serving customers in WN7 and the surrounding area. Contact us to today to get a competitive quo...
From £17,364
Need to find an Extension Builder near you for all your extension buildering work?
Maintenance Point provides a local, trusted extension bu...

Underpinning ranges from £16,956 (Aps pointing and property maintenance based in WN2) to £17,548 (HAROLDS CORP based in WN2), 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 WN7 by posting a job with HaMuch and we will send it to extension builders in WN7.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Leigh | £31 | £224 |
| Underpin A Building near Atherton | £31 | £223 |
| Underpin A Building near Westhoughton | £31 | £222 |
| Underpin A Building near Golborne | £30 | £222 |
| Underpin A Building near Hindley | £30 | £218 |
| Underpin A Building near Little Hulton | £30 | £220 |
| Underpin A Building near Ashton-in-Makerfield | £30 | £220 |
| Underpin A Building near Irlam | £32 | £225 |
| Underpin A Building near Newton-le-Willows | £31 | £221 |
| Underpin A Building near Wigan | £30 | £219 |
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 - £17,310

Two storey extension - £87,716

Build a timber frame extension - £25,810

Build a swimming pool - £80,810

Single storey extension - £51,208

Side return extension - £39,367

Install an RSJ - £2,010

Outbuilding - £9,810

Build a Mansard loft conversion - £51,810

Loft conversion - £31,973

Build a kitchen extension - £41,810

Hip to gable loft conversion - £41,810

Granny annexe - £86,810

Garden office - £9,810

Convert a Garage - £15,810

Garage - £18,310

Build a flat roof extension - £21,810

Build a dormer loft conversion - £41,810

Concrete foundations - £6,060

Convert a bungalow loft - £28,810

Convert a basement - £35,367