Need an Extension Builder in Tredegar? P.D.Builders has been helping local clients (20 mile radius) with their extension buildering jobs for many y...
Experienced extension builder ready to quote for your work. Limitlesskitchens is the best extension builder in Tredegar. No obligation free quotes ...
Need to find an Extension Builder near you for all your extension buildering work?
A B CONSTRUCTION provides a local, trusted extension bui...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,444
Trusted and professional extension builder in Tredegar. Experienced in all extension buildering work and keeping within budget and on quote. BIs Gr...
From £17,300
Need an Extension Builder in Tredegar? MG3Design has been helping local clients (20 mile radius) with their extension buildering jobs for many year...

Underpinning ranges from £17,148 (Jac Jones Construction Ltd based in NP12) to £17,444 (BIs Group based in NP12), 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 Tredegar by posting a job with HaMuch and we will send it to extension builders in Tredegar.
| 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 - £17,299

Two storey extension - £87,698

Build a timber frame extension - £25,799

Build a swimming pool - £80,799

Single storey extension - £50,973

Side return extension - £39,235

Install an RSJ - £1,999

Outbuilding - £9,799

Build a Mansard loft conversion - £51,799

Loft conversion - £31,863

Build a kitchen extension - £41,799

Hip to gable loft conversion - £41,799

Granny annexe - £86,799

Garden office - £9,799

Convert a Garage - £15,799

Garage - £18,299

Build a flat roof extension - £21,799

Build a dormer loft conversion - £41,799

Concrete foundations - £6,049

Convert a bungalow loft - £28,799

Convert a basement - £35,235