From £17,396
Barlam Drylining Ltd are here to help customers who need an Extension Builder in NP22. We offer a competitive rate to complete all your extension b...
From £17,372
Need an Extension Builder in NP22? P.D.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £16,700
Very reliable honest and hard working guarantee all work clean and tidy first class work
From £17,284
Experienced extension builder ready to quote for your work. TOR BUILD is the best extension builder in NP22. No obligation free quotes and many hap...
From £17,292
T Porter Buiding is an established and experienced local extension builder in NP22. Please contact us for a free, no obligation quote and competiti...
From £17,132
Relax... you have found a reliable extension builder in NP22. Charles Marshall Contracting Ltd is a friendly and reliable company based in NP22 who...
From £17,260
Sharif General Builder is an established and experienced local extension builder in NP22. Please contact us for a free, no obligation quote and com...
From £17,228
Experienced extension builder ready to quote for your work. Limitlesskitchens is the best extension builder in NP22. No obligation free quotes and ...
From £17,260
Construction Jobs is an established and experienced local extension builder in NP22. Please contact us for a free, no obligation quote and competit...
From £17,484
Need to find an Extension Builder near you for all your extension buildering work?
PARTRIDGE - WILSON BUILDERS provides a local, trusted ex...

Underpinning ranges from £16,700 (A.Gaddarn Builders based in NP11) to £17,484 (PARTRIDGE - WILSON BUILDERS based in NP44), 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 NP22 by posting a job with HaMuch and we will send it to extension builders in NP22.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Tredegar | £30 | £217 |
| Underpin A Building near Ebbw Vale | £30 | £217 |
| Underpin A Building near Merthyr Tydfil | £33 | £220 |
| Underpin A Building near Aberdare | £32 | £212 |
| Underpin A Building near Pontypool | £30 | £210 |
| Underpin A Building near Rhondda, Cynon, Taff | £31 | £209 |
| Underpin A Building near Pontypridd | £33 | £211 |
| Underpin A Building near Risca | £32 | £218 |
| Underpin A Building near Cwmbran | £43 | £219 |
| Underpin A Building near Rhondda | £31 | £206 |
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 - £17,241

Two storey extension - £87,611

Build a timber frame extension - £25,741

Build a swimming pool - £80,741

Single storey extension - £49,816

Side return extension - £38,584

Install an RSJ - £1,941

Outbuilding - £9,741

Build a Mansard loft conversion - £51,741

Loft conversion - £31,320

Build a kitchen extension - £41,741

Hip to gable loft conversion - £41,741

Granny annexe - £86,741

Garden office - £9,741

Convert a Garage - £15,741

Garage - £18,241

Build a flat roof extension - £21,741

Build a dormer loft conversion - £41,741

Concrete foundations - £5,991

Convert a bungalow loft - £28,741

Convert a basement - £34,584