From £17,412
Relax... you have found a reliable extension builder in NP19. Ace Paving is a friendly and reliable company based in NP19 who consider no job as to...
From £17,492
Relax... you have found a reliable extension builder in NP19. RKD Maintenance & Construction is a friendly and reliable company based in NP19 who c...
From £17,292
T Porter Buiding is an established and experienced local extension builder in NP19. Please contact us for a free, no obligation quote and competiti...
From £17,260
Sharif General Builder is an established and experienced local extension builder in NP19. Please contact us for a free, no obligation quote and com...
From £17,500
Trusted and professional extension builder in NP19. Experienced in all extension buildering work and keeping within budget and on quote. A P FORD B...
From £17,556
Matthew O'Brien is an established and experienced local extension builder in NP19. Please contact us for a free, no obligation quote and competitiv...
From £17,252
Experienced extension builder ready to quote for your work. Kingsley Developments is the best extension builder in NP19. No obligation free quotes ...
From £17,420
Kingsley Developments is an established and experienced local extension builder in NP19. Please contact us for a free, no obligation quote and comp...
From £17,212
PMW Property Services Ltd is an established and experienced local extension builder in NP19. Please contact us for a free, no obligation quote and ...
From £17,804
Experienced extension builder ready to quote for your work. Carter Thomas Construction Ltd is the best extension builder in NP19. No obligation fre...

Underpinning ranges from £17,212 (PMW Property Services Ltd based in NP20) to £17,804 (Carter Thomas Construction Ltd based in NP18), 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 NP19 by posting a job with HaMuch and we will send it to extension builders in NP19.
| 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 Pontypool | £30 | £210 |
| Underpin A Building near Caerphilly | £33 | £208 |
| Underpin A Building near Clevedon | £32 | £243 |
| Underpin A Building near Portishead | £33 | £247 |
| Underpin A Building near Cardiff | £35 | £219 |
| Underpin A Building near Penarth | £36 | £217 |
| 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 - £17,420

Two storey extension - £87,880

Build a timber frame extension - £25,920

Build a swimming pool - £80,920

Single storey extension - £53,400

Side return extension - £40,600

Install an RSJ - £2,120

Outbuilding - £9,920

Build a Mansard loft conversion - £51,920

Loft conversion - £33,000

Build a kitchen extension - £41,920

Hip to gable loft conversion - £41,920

Granny annexe - £86,920

Garden office - £9,920

Convert a Garage - £15,920

Garage - £18,420

Build a flat roof extension - £21,920

Build a dormer loft conversion - £41,920

Concrete foundations - £6,170

Convert a bungalow loft - £28,920

Convert a basement - £36,600