From £17,428
S1 Builders Norfolk is an established and experienced local extension builder in PE31. Please contact us for a free, no obligation quote and compet...
From £17,028
Relax... you have found a reliable extension builder in PE31. B & K BUILDING SERVICES is a friendly and reliable company based in PE31 who consider...
From £17,460
Trusted and professional extension builder in PE31. Experienced in all extension buildering work and keeping within budget and on quote. ANDREW RUS...
From £17,220
Trusted and professional extension builder in PE31. Experienced in all extension buildering work and keeping within budget and on quote. WEST NORFO...
From £17,212
Grey's Construction & Civil Engineering is an established extension buildering business in PE31. We come highly recommended and provide competitive...
From £17,180
NB CONSTRUCTION (UK) LIMITED is an established and experienced local extension builder in PE31. Please contact us for a free, no obligation quote a...
From £17,420
Relax... you have found a reliable extension builder in PE31. Irvines is a friendly and reliable company based in PE31 who consider no job as too b...
From £17,060
Paul Bishop Builder is an established extension buildering business in PE31. We come highly recommended and provide competitive quotes for your wor...
From £17,388
Relax... you have found a reliable extension builder in PE31. C P WELLS BUILDER is a friendly and reliable company based in PE31 who consider no jo...
From £17,996
Need an Extension Builder in PE31? Nu-build Norfolk Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for ma...

Underpinning ranges from £17,028 (B & K BUILDING SERVICES based in PE30) to £17,996 (Nu-build Norfolk Ltd based in PE34), 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 PE31 by posting a job with HaMuch and we will send it to extension builders in PE31.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Kings Lynn & West Norfolk | £31 | £238 |
| Underpin A Building near King's Lynn | £33 | £254 |
| Underpin A Building near Dereham | £25 | £203 |
| Underpin A Building near Wisbech | £34 | £255 |
| Underpin A Building near Breckland | £28 | £248 |
| Underpin A Building near Boston | £28 | £262 |
| Underpin A Building near Broadland | £24 | £194 |
| Underpin A Building near Spalding | £32 | £238 |
| Underpin A Building near East Lindsey | £27 | £198 |
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 - £17,339

Two storey extension - £87,759

Build a timber frame extension - £25,839

Build a swimming pool - £80,839

Single storey extension - £51,784

Side return extension - £39,691

Install an RSJ - £2,039

Outbuilding - £9,839

Build a Mansard loft conversion - £51,839

Loft conversion - £32,243

Build a kitchen extension - £41,839

Hip to gable loft conversion - £41,839

Granny annexe - £86,839

Garden office - £9,839

Convert a Garage - £15,839

Garage - £18,339

Build a flat roof extension - £21,839

Build a dormer loft conversion - £41,839

Concrete foundations - £6,089

Convert a bungalow loft - £28,839

Convert a basement - £35,691