From £17,220
Pontyclun, CF72
Relax... you have found a reliable extension builder in Pontyclun. WESTGATE BUILDING SERVICES LTD is a friendly and reliable company based in Ponty...
From £17,284
Pontyclun, CF72
S J S Services (Wales) Ltd is a trusted extension builder serving customers in Pontyclun and the surrounding area. Contact us to today to get a com...
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 £17,116
Excel Home Design Ltd is an established extension buildering business in Pontyclun. We come highly recommended and provide competitive quotes for y...
From £17,364
Need an Extension Builder in Pontyclun? SP Property Maintenance has been helping local clients (20 mile radius) with their extension buildering job...
From £17,052
P ALLEN BUILDERS is an established and experienced local extension builder in Pontyclun. Please contact us for a free, no obligation quote and comp...
From £17,236
Relax... you have found a reliable extension builder in Pontyclun. DEAN THOMAS BUILDING is a friendly and reliable company based in Pontyclun who c...
From £17,116
EXTEND & BUILD LTD is an established and experienced local extension builder in Pontyclun. Please contact us for a free, no obligation quote and co...
From £17,180
General Building and Property Renovation Specialists A family business since Based in South Wales We specialise in all aspects of residential build...
From £16,996
Trusted and professional extension builder in Pontyclun. Experienced in all extension buildering work and keeping within budget and on quote. RJ CO...

Underpinning ranges from £16,996 (RJ CONSTRUCTION based in CF40) to £17,364 (SP Property Maintenance based in CF35), 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 Pontyclun by posting a job with HaMuch and we will send it to extension builders in Pontyclun.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Church Village | £34 | £214 |
| Underpin A Building near Pontypridd | £33 | £211 |
| Underpin A Building near Rhondda | £31 | £206 |
| Underpin A Building near Bridgend | £32 | £200 |
| Underpin A Building near Rhondda, Cynon, Taff | £31 | £209 |
| Underpin A Building near Caerphilly | £33 | £208 |
| Underpin A Building near Vale of Glamorgan | £29 | £217 |
| Underpin A Building near Barry | £33 | £218 |
| Underpin A Building near Cardiff | £34 | £219 |
| Underpin A Building near Penarth | £35 | £218 |
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 - £17,186

Two storey extension - £87,528

Build a timber frame extension - £25,686

Build a swimming pool - £80,686

Single storey extension - £48,712

Side return extension - £37,963

Install an RSJ - £1,886

Outbuilding - £9,686

Build a Mansard loft conversion - £51,686

Loft conversion - £30,803

Build a kitchen extension - £41,686

Hip to gable loft conversion - £41,686

Granny annexe - £86,686

Garden office - £9,686

Convert a Garage - £15,686

Garage - £18,186

Build a flat roof extension - £21,686

Build a dormer loft conversion - £41,686

Concrete foundations - £5,936

Convert a bungalow loft - £28,686

Convert a basement - £33,963