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Alan Gaddarn
Very reliable honest and hard working guarantee all work clean and tidy first class work
T Porter Buiding is an established and experienced local extension builder in Newport. Please contact us for a free, no obligation quote and compet...
Relax... you have found a reliable extension builder in Newport. Charles Marshall Contracting Ltd is a friendly and reliable company based in Newpo...
Sharif General Builder is an established and experienced local extension builder in Newport. Please contact us for a free, no obligation quote and ...
Need to find an Extension Builder near you for all your extension buildering work?
PARTRIDGE - WILSON BUILDERS provides a local, trusted ex...
D BENDON CONSTRUCTION LTD is an established and experienced local extension builder in Newport. Please contact us for a free, no obligation quote a...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Relax... you have found a reliable extension builder in Newport. Ace Paving is a friendly and reliable company based in Newport who consider no job...
Need to find an Extension Builder near you for all your extension buildering work?
ABS Allied Trades provides a local, trusted extension bu...
Experienced extension builder ready to quote for your work. N OBRIEN BUILDING SERVICES is the best extension builder in Newport. No obligation free...

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 Newport by posting a job with HaMuch and we will send it to extension builders in Newport.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Newport | £41 | £233 |
| Underpin A Building near Cwmbran | £43 | £219 |
| Underpin A Building near Risca | £32 | £218 |
| Underpin A Building near Caerphilly | £33 | £208 |
| Underpin A Building near Pontypool | £30 | £210 |
| Underpin A Building near Cardiff | £34 | £223 |
| Underpin A Building near Clevedon | £32 | £243 |
| Underpin A Building near Portishead | £33 | £247 |
| Underpin A Building near Penarth | £35 | £224 |
| Underpin A Building near Church Village | £34 | £214 |
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 - £17,236

Two storey extension - £87,604

Build a timber frame extension - £25,736

Build a swimming pool - £80,736

Single storey extension - £49,720

Side return extension - £38,530

Install an RSJ - £1,936

Outbuilding - £9,736

Build a Mansard loft conversion - £51,736

Loft conversion - £31,275

Build a kitchen extension - £41,736

Hip to gable loft conversion - £41,736

Granny annexe - £86,736

Garden office - £9,736

Convert a Garage - £15,736

Garage - £18,236

Build a flat roof extension - £21,736

Build a dormer loft conversion - £41,736

Concrete foundations - £5,986

Convert a bungalow loft - £28,736

Convert a basement - £34,530