From £17,292
Trusted and professional extension builder in LA14. Experienced in all extension buildering work and keeping within budget and on quote. MLTC Build...
From £17,020
I have completed 98 extensions and loft conversion over the past 20 years
From £16,892
LJS Building Property Service Ltd are here to help customers who need an Extension Builder in LA14. We offer a competitive rate to complete all you...
From £17,212
Trusted and professional extension builder in LA14. Experienced in all extension buildering work and keeping within budget and on quote. CORKHILL C...
From £17,092
Need to find an Extension Builder near you for all your extension buildering work?
T P MCNULTY CONSTRUCTION LTD provides a local, trusted e...
From £17,500
Tweeter is an established and experienced local extension builder in LA14. Please contact us for a free, no obligation quote and competitive rates....
From £17,148
B & K BUILDERS LTD is an established extension buildering business in LA14. We come highly recommended and provide competitive quotes for your work...
From £17,060
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,980
MIKE CROWE BUILDING & CONSTRUC is an established and experienced local extension builder in LA14. Please contact us for a free, no obligation quote...

Underpinning ranges from £16,892 (Owen Williamson based in LA14) to £17,980 (MIKE CROWE BUILDING & CONSTRUC based in LA12), 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 LA14 by posting a job with HaMuch and we will send it to extension builders in LA14.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Barrow-in-Furness | £21 | £173 |
| Underpin A Building near Morecambe | £22 | £186 |
| Underpin A Building near Fleetwood | £25 | £180 |
| Underpin A Building near Lancaster | £22 | £185 |
| Underpin A Building near Blackpool | £25 | £183 |
| Underpin A Building near Kendal | £24 | £200 |
| Underpin A Building near Lytham St Annes | £25 | £181 |
| Underpin A Building near Fulwood | £26 | £187 |
| Underpin A Building near Penwortham | £26 | £189 |
| Underpin A Building near Whitehaven | £18 | £185 |
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 - £17,209

Two storey extension - £87,563

Build a timber frame extension - £25,709

Build a swimming pool - £80,709

Single storey extension - £49,176

Side return extension - £38,224

Install an RSJ - £1,909

Outbuilding - £9,709

Build a Mansard loft conversion - £51,709

Loft conversion - £31,020

Build a kitchen extension - £41,709

Hip to gable loft conversion - £41,709

Granny annexe - £86,709

Garden office - £9,709

Convert a Garage - £15,709

Garage - £18,209

Build a flat roof extension - £21,709

Build a dormer loft conversion - £41,709

Concrete foundations - £5,959

Convert a bungalow loft - £28,709

Convert a basement - £34,224