From £17,028
Relax... you have found a reliable extension builder in Kings Lynn & West Norfolk. B & K BUILDING SERVICES is a friendly and reliable company based...
From £17,276
Pawsey Property Solutions Ltd are a Norfolk based construction company. Specialising in renovations, conversions and extensions. We have the resour...
From £17,212
Grey's Construction & Civil Engineering is an established extension buildering business in Kings Lynn & West Norfolk. We come highly recommended an...
From £17,508
Bespoke Norfolk Group Ltd is a trusted extension builder serving customers in Kings Lynn & West Norfolk and the surrounding area. Contact us to tod...
From £17,220
Trusted and professional extension builder in Kings Lynn & West Norfolk. Experienced in all extension buildering work and keeping within budget and...
From £17,996
Need an Extension Builder in Kings Lynn & West Norfolk? Nu-build Norfolk Ltd has been helping local clients (20 mile radius) with their extension b...
From £17,180
NB CONSTRUCTION (UK) LIMITED is an established and experienced local extension builder in Kings Lynn & West Norfolk. Please contact us for a free, ...
From £17,244
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,388
Relax... you have found a reliable extension builder in Kings Lynn & West Norfolk. C P WELLS BUILDER is a friendly and reliable company based in Ki...
From £17,428
S1 Builders Norfolk is an established and experienced local extension builder in Kings Lynn & West Norfolk. Please contact us for a free, no obliga...

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 Kings Lynn & West Norfolk by posting a job with HaMuch and we will send it to extension builders in Kings Lynn & West Norfolk.
| 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 Wisbech | £34 | £255 |
| Underpin A Building near Dereham | £25 | £203 |
| Underpin A Building near Breckland | £28 | £248 |
| Underpin A Building near Boston | £28 | £262 |
| Underpin A Building near Spalding | £32 | £238 |
| Underpin A Building near Thetford | £42 | £277 |
| Underpin A Building near Ely | £40 | £279 |
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 - £17,348

Two storey extension - £87,772

Build a timber frame extension - £25,848

Build a swimming pool - £80,848

Single storey extension - £51,960

Side return extension - £39,790

Install an RSJ - £2,048

Outbuilding - £9,848

Build a Mansard loft conversion - £51,848

Loft conversion - £32,325

Build a kitchen extension - £41,848

Hip to gable loft conversion - £41,848

Granny annexe - £86,848

Garden office - £9,848

Convert a Garage - £15,848

Garage - £18,348

Build a flat roof extension - £21,848

Build a dormer loft conversion - £41,848

Concrete foundations - £6,098

Convert a bungalow loft - £28,848

Convert a basement - £35,790