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Select your affordable Holt extension builder
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 £17,460
simon hunt building services is an established extension buildering business in Holt. We come highly recommended and provide competitive quotes for...
From £17,812
Halls Property Services Ltd - Independent Network Installer is an established and experienced local extension builder in Holt. Please contact us fo...

Underpinning ranges from £17,012 (MARK WELCH BUILDING SER based in NR26) to £17,812 (Halls Property Services Ltd - Independent Network Installer based in NR11), 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 - £17,428

Two storey extension - £87,892

Build a timber frame extension - £25,928

Build a swimming pool - £80,928

Single storey extension - £53,560

Side return extension - £40,690

Install an RSJ - £2,128

Outbuilding - £9,928

Build a Mansard loft conversion - £51,928

Loft conversion - £33,075

Build a kitchen extension - £41,928

Hip to gable loft conversion - £41,928

Granny annexe - £86,928

Garden office - £9,928

Convert a Garage - £15,928

Garage - £18,428

Build a flat roof extension - £21,928

Build a dormer loft conversion - £41,928

Concrete foundations - £6,178

Convert a bungalow loft - £28,928

Convert a basement - £36,690