From £17,164
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From £17,428
S1 Builders Norfolk is an established and experienced local extension builder in Holt. Please contact us for a free, no obligation quote and compet...
From £17,100
Relax... you have found a reliable extension builder in Holt. 1st Class Building Services is a friendly and reliable company based in Holt who cons...
From £17,012
MARK WELCH BUILDING SER is a trusted extension builder serving customers in Holt and the surrounding area. Contact us to today to get a competitive...
From £16,972
Need an Extension Builder in Holt? Heritage Construction Norfolk has been helping local clients (20 mile radius) with their extension buildering jo...
From £17,052
Relax... you have found a reliable extension builder in Holt. Steven Folkard (Self Build) is a friendly and reliable company based in Holt who cons...
From £17,204
Y CONSTRUCTION LIMITED are here to help customers who need an Extension Builder in Holt. We offer a competitive rate to complete all your extension...
From £16,692
Experienced extension builder ready to quote for your work. CAMPBELLS is the best extension builder in Holt. No obligation free quotes and many hap...
From £17,060
Paul Bishop Builder is an established extension buildering business in Holt. We come highly recommended and provide competitive quotes for your wor...
From £17,388
Relax... you have found a reliable extension builder in Holt. C P WELLS BUILDER is a friendly and reliable company based in Holt who consider no jo...

Underpinning ranges from £16,692 (CAMPBELLS based in NR27) to £17,428 (S1 Builders Norfolk based in PE31), 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 Holt by posting a job with HaMuch and we will send it to extension builders in Holt.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Broadland | £24 | £194 |
| Underpin A Building near Dereham | £25 | £203 |
| Underpin A Building near Norwich | £25 | £200 |
| Underpin A Building near Breckland | £28 | £248 |
| Underpin A Building near Kings Lynn & West Norfolk | £31 | £238 |
| Underpin A Building near Great Yarmouth | £13 | £132 |
| Underpin A Building near King's Lynn | £33 | £254 |
| Underpin A Building near Gorleston-on-Sea | £25 | £205 |
| Underpin A Building near Lowestoft | £24 | £197 |
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 - £17,107

Two storey extension - £87,411

Build a timber frame extension - £25,607

Build a swimming pool - £80,607

Single storey extension - £47,144

Side return extension - £37,081

Install an RSJ - £1,807

Outbuilding - £9,607

Build a Mansard loft conversion - £51,607

Loft conversion - £30,068

Build a kitchen extension - £41,607

Hip to gable loft conversion - £41,607

Granny annexe - £86,607

Garden office - £9,607

Convert a Garage - £15,607

Garage - £18,107

Build a flat roof extension - £21,607

Build a dormer loft conversion - £41,607

Concrete foundations - £5,857

Convert a bungalow loft - £28,607

Convert a basement - £33,081