From £17,396
Need to find an Extension Builder near you for all your extension buildering work?
J.L Noblet provides a local, trusted extension builderin...
From £17,204
Experienced extension builder ready to quote for your work. DB Joinery & Building Contractors Ltd is the best extension builder in Penwortham. No ...
From £17,404
Our building services company NPD Builders have thirty years’ experience and have been helping customers in Preston and the surrounding area by p...
From £17,332
Need an Extension Builder in Penwortham? John Towers Builders has been helping local clients (20 mile radius) with their extension buildering jobs ...
From £17,324
Relax... you have found a reliable extension builder in Penwortham. Wilson Design & Build is a friendly and reliable company based in Penwortham wh...
From £17,188
Wilson Design & Build is a full service Construction Company dedicated to building and improving residential and commercial structures according to...
From £17,260
Our building services company J&B Developments are a small family run business who are trustworthy and reliable and have over twelve years of exper...
From £17,116
JS Brickwork are here to help customers who need an Extension Builder in Penwortham. We offer a competitive rate to complete all your extension bui...
From £17,052
Comprehensive Property Services is an established and experienced local extension builder in Penwortham. Please contact us for a free, no obligatio...
From £17,228
Need to find an Extension Builder near you for all your extension buildering work?
Bond Joinery & Building provides a local, trusted extens...

Underpinning ranges from £17,052 (Comprehensive Property Services based in PR1) to £17,404 (NPD Builders based in PR2), 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 Penwortham by posting a job with HaMuch and we will send it to extension builders in Penwortham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Penwortham | £30 | £218 |
| Underpin A Building near Preston | £30 | £218 |
| Underpin A Building near Fulwood | £31 | £217 |
| Underpin A Building near Bamber Bridge | £30 | £216 |
| Underpin A Building near Leyland | £30 | £223 |
| Underpin A Building near Chorley | £30 | £221 |
| Underpin A Building near Blackburn | £33 | £246 |
| Underpin A Building near Darwen | £34 | £253 |
| Underpin A Building near Lytham St Annes | £28 | £206 |
| Underpin A Building near Blackpool | £29 | £209 |
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 - £17,250

Two storey extension - £87,626

Build a timber frame extension - £25,750

Build a swimming pool - £80,750

Single storey extension - £50,008

Side return extension - £38,692

Install an RSJ - £1,950

Outbuilding - £9,750

Build a Mansard loft conversion - £51,750

Loft conversion - £31,410

Build a kitchen extension - £41,750

Hip to gable loft conversion - £41,750

Granny annexe - £86,750

Garden office - £9,750

Convert a Garage - £15,750

Garage - £18,250

Build a flat roof extension - £21,750

Build a dormer loft conversion - £41,750

Concrete foundations - £6,000

Convert a bungalow loft - £28,750

Convert a basement - £34,692