DEREK REES BUILDING MAINTENANC is an established extension buildering business in LD3. We come highly recommended and provide competitive quotes fo...
From £17,244
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £17,140 (DEREK REES BUILDING MAINTENANC based in LD3) to £17,244 (SEER CONSTRUCTION LTD based in LD3), 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 LD3 by posting a job with HaMuch and we will send it to extension builders in LD3.
| 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 Rhondda, Cynon, Taff | £31 | £209 |
| Underpin A Building near Pontypool | £30 | £210 |
| Underpin A Building near Rhondda | £31 | £206 |
| Underpin A Building near Neath Port Talbot | £31 | £224 |
| Underpin A Building near Pontypridd | £33 | £211 |
| Underpin A Building near Cwmbran | £43 | £219 |
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 - £17,192

Two storey extension - £87,538

Build a timber frame extension - £25,692

Build a swimming pool - £80,692

Single storey extension - £48,840

Side return extension - £38,035

Install an RSJ - £1,892

Outbuilding - £9,692

Build a Mansard loft conversion - £51,692

Loft conversion - £30,863

Build a kitchen extension - £41,692

Hip to gable loft conversion - £41,692

Granny annexe - £86,692

Garden office - £9,692

Convert a Garage - £15,692

Garage - £18,192

Build a flat roof extension - £21,692

Build a dormer loft conversion - £41,692

Concrete foundations - £5,942

Convert a bungalow loft - £28,692

Convert a basement - £34,035