From £17,900
Helenski Group Ltd specialises in complete bathroom renovations, luxury tiling, kitchens and full property refurbishments. We have over 20 years of...
From £17,660
Silverwood Construction (Cambridge) Ltd are here to help customers who need an Extension Builder in CB8. We offer a competitive rate to complete al...
From £17,652
Relax... you have found a reliable extension builder in CB8. CROWNBUILD is a friendly and reliable company based in CB8 who consider no job as too ...
From £17,772
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,380
Need an Extension Builder in CB8? Mc2 Building Services has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £18,860
Experienced extension builder ready to quote for your work. ALLIED BUILDING ASSOCIATES LTD is the best extension builder in CB8. No obligation free...
From £17,588
Eric Handyman- builder is an established and experienced local extension builder in CB8. Please contact us for a free, no obligation quote and comp...
From £17,068
We are a family business providing a one stop shop to meet all your building and renervation needs
From £17,572
Relax... you have found a reliable extension builder in CB8. D Stebbings is a friendly and reliable company based in CB8 who consider no job as too...
From £17,884
Comprehensive, Intelligent Construction Service offering Domestic and Commercial Buildings, Barn, Basement and Loft Conversions, Renovation & Refur...

Underpinning ranges from £17,068 (Sean W Scott General Builder based in IP28) to £18,860 (ALLIED BUILDING ASSOCIATES LTD based in CB22), 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 CB8 by posting a job with HaMuch and we will send it to extension builders in CB8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Haverhill | £37 | £260 |
| Underpin A Building near Ely | £40 | £279 |
| Underpin A Building near Bury St Edmunds | £34 | £251 |
| Underpin A Building near Cambridge | £38 | £271 |
| Underpin A Building near South Cambridgeshire | £43 | £305 |
| Underpin A Building near Sudbury | £34 | £229 |
| Underpin A Building near Thetford | £42 | £277 |
| Underpin A Building near Braintree | £37 | £247 |
| Underpin A Building near Stowmarket | £30 | £221 |
| Underpin A Building near Huntingdon | £38 | £284 |
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 - £17,734

Two storey extension - £88,350

Build a timber frame extension - £26,234

Build a swimming pool - £81,234

Single storey extension - £59,672

Side return extension - £44,128

Install an RSJ - £2,434

Outbuilding - £10,234

Build a Mansard loft conversion - £52,234

Loft conversion - £35,940

Build a kitchen extension - £42,234

Hip to gable loft conversion - £42,234

Granny annexe - £87,234

Garden office - £10,234

Convert a Garage - £16,234

Garage - £18,734

Build a flat roof extension - £22,234

Build a dormer loft conversion - £42,234

Concrete foundations - £6,484

Convert a bungalow loft - £29,234

Convert a basement - £40,128