From £17,532
Thetford, IP24
Need to find an Extension Builder near you for all your extension buildering work?
MICKS BUILDING SERVICES provides a local, trusted extens...
From £17,900
Thetford, IP24
Helenski Group Ltd specialises in complete bathroom renovations, luxury tiling, kitchens and full property refurbishments. We have over 20 years of...
From £16,964
Need to find an Extension Builder near you for all your extension buildering work?
Renovation Concepts Ltd provides a local, trusted extens...
From £17,724
Small extension, to full turn key new house builds, listed building works, renovations. We provide a full comprehensive quotation for all your need...
From £17,356
Experienced extension builder ready to quote for your work. Beechwood Building Services is the best extension builder in Thetford. No obligation fr...
From £17,860
Experienced extension builder ready to quote for your work. Empire Profits Online is the best extension builder in Thetford. No obligation free quo...
From £17,068
We are a family business providing a one stop shop to meet all your building and renervation needs
From £17,244
Experienced extension builder ready to quote for your work. Brayfield Construction is the best extension builder in Thetford. No obligation free qu...
From £17,276
Trusted and professional extension builder in Thetford. Experienced in all extension buildering work and keeping within budget and on quote. RD FAR...

Underpinning ranges from £16,964 (Renovation Concepts Ltd based in IP22) to £17,900 (Helenski Group Ltd based in IP24), 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 Thetford by posting a job with HaMuch and we will send it to extension builders in Thetford.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Thetford | £42 | £277 |
| Underpin A Building near Breckland | £28 | £248 |
| Underpin A Building near Bury St Edmunds | £34 | £251 |
| Underpin A Building near Stowmarket | £30 | £221 |
| Underpin A Building near Ely | £40 | £279 |
| Underpin A Building near Dereham | £25 | £203 |
| Underpin A Building near Sudbury | £34 | £229 |
| Underpin A Building near Haverhill | £37 | £260 |
| Underpin A Building near Norwich | £25 | £200 |
| Underpin A Building near King's Lynn | £33 | £254 |
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