John
We are a family business for 37 years experience between us reliable Team value for money check out our reviews on Google Rated People bar...
Lee Gavins
Attention to detail. Member of safe trader. Recommendations References available.
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Lancaster Building Contractors is an established and experienced local extension builder in LA4. Please contact us for a free, no obligation quote ...
J.DRING BUILDING are here to help customers who need an Extension Builder in LA4. We offer a competitive rate to complete all your extension builde...

Underpinning ranges from £17,100 (Lancaster Building Contractors based in LA1) to £17,420 (JPw Property Care LTD based in LA4), 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 LA4 by posting a job with HaMuch and we will send it to extension builders in LA4.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Morecambe | £25 | £212 |
| Underpin A Building near Lancaster | £25 | £211 |
| Underpin A Building near Fleetwood | £28 | £206 |
| Underpin A Building near Barrow-in-Furness | £25 | £204 |
| Underpin A Building near Thornton | £29 | £211 |
| Underpin A Building near Kendal | £28 | £236 |
| Underpin A Building near Blackpool | £29 | £209 |
| Underpin A Building near Fulwood | £31 | £217 |
| Underpin A Building near Preston | £30 | £218 |
| Underpin A Building near Penwortham | £30 | £218 |
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 - £17,282

Two storey extension - £87,674

Build a timber frame extension - £25,782

Build a swimming pool - £80,782

Single storey extension - £50,648

Side return extension - £39,052

Install an RSJ - £1,982

Outbuilding - £9,782

Build a Mansard loft conversion - £51,782

Loft conversion - £31,710

Build a kitchen extension - £41,782

Hip to gable loft conversion - £41,782

Granny annexe - £86,782

Garden office - £9,782

Convert a Garage - £15,782

Garage - £18,282

Build a flat roof extension - £21,782

Build a dormer loft conversion - £41,782

Concrete foundations - £6,032

Convert a bungalow loft - £28,782

Convert a basement - £35,052