From £17,076
L E JONES BUILDER is an established extension buildering business in Rhondda Cynon Taf. We come highly recommended and provide competitive quotes f...
From £17,028
Need an Extension Builder in Rhondda Cynon Taf? A POWELL CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buil...
From £16,996
Trusted and professional extension builder in Rhondda Cynon Taf. Experienced in all extension buildering work and keeping within budget and on quot...
From £17,308
Dare Fitness is an established extension buildering business in Rhondda Cynon Taf. We come highly recommended and provide competitive quotes for yo...
From £17,396
Barlam Drylining Ltd are here to help customers who need an Extension Builder in Rhondda Cynon Taf. We offer a competitive rate to complete all you...
From £17,324
Need an Extension Builder in Rhondda Cynon Taf? FORMWORK CONSTRUCTION LTD has been helping local clients (20 mile radius) with their extension buil...
From £17,204
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,116
Excel Home Design Ltd is an established extension buildering business in Rhondda Cynon Taf. We come highly recommended and provide competitive quot...
From £17,292
We are a small family run business, established over 35 years ago, specialising in Hard Landscaping (Patios) and Block Paving.We a...
From £17,052
P ALLEN BUILDERS is an established and experienced local extension builder in Rhondda Cynon Taf. Please contact us for a free, no obligation quote ...

Underpinning ranges from £16,996 (RJ CONSTRUCTION based in CF40) to £17,396 (Barlam Drylining Ltd based in CF45), 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 Rhondda Cynon Taf by posting a job with HaMuch and we will send it to extension builders in Rhondda Cynon Taf.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rhondda, Cynon, Taff | £31 | £209 |
| Underpin A Building near Aberdare | £32 | £212 |
| Underpin A Building near Rhondda | £31 | £206 |
| Underpin A Building near Pontypridd | £33 | £211 |
| Underpin A Building near Merthyr Tydfil | £33 | £220 |
| Underpin A Building near Maesteg | £38 | £283 |
| Underpin A Building near Church Village | £34 | £214 |
| Underpin A Building near Tredegar | £28 | £218 |
| Underpin A Building near Caerphilly | £33 | £208 |
| Underpin A Building near Neath Port Talbot | £31 | £224 |
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 - £17,179

Two storey extension - £87,519

Build a timber frame extension - £25,679

Build a swimming pool - £80,679

Single storey extension - £48,584

Side return extension - £37,891

Install an RSJ - £1,879

Outbuilding - £9,679

Build a Mansard loft conversion - £51,679

Loft conversion - £30,743

Build a kitchen extension - £41,679

Hip to gable loft conversion - £41,679

Granny annexe - £86,679

Garden office - £9,679

Convert a Garage - £15,679

Garage - £18,179

Build a flat roof extension - £21,679

Build a dormer loft conversion - £41,679

Concrete foundations - £5,929

Convert a bungalow loft - £28,679

Convert a basement - £33,891