From £17,860
Henlow, SG16
Experienced extension builder ready to quote for your work. Specialist Building Refurbishm is the best extension builder in Henlow. No obligation f...
From £17,788
Realise Your Luxury Dream Home With The Design And Build Partner You Can Trust.At MG Design & Build we have over 25 years of experience in the cons...
From £17,348
Need an Extension Builder in Henlow? R&J Building Services Ltd has been helping local clients (20 mile radius) with their extension buildering jobs...
From £17,828
Our building services company David Douglas Developments has over 30 years’ experience, and built an established reputation of providing customer...
From £17,620
For more than 10 years, North Hertfordshire Construction LTD have been the name you can trust when it comes to building and development! We are kno...
From £17,812
Experienced extension builder ready to quote for your work. Bricklayers is the best extension builder in Henlow. No obligation free quotes and many...
From £17,884
Experienced extension builder ready to quote for your work. HB Construction is the best extension builder in Henlow. No obligation free quotes and ...
From £17,692
TCL BUILDING SOLUTIONS LTD are here to help customers who need an Extension Builder in Henlow. We offer a competitive rate to complete all your ext...
From £17,708
Need an Extension Builder in Henlow? WILLMOTT DIXON CONSTRUCTION LI has been helping local clients (20 mile radius) with their extension buildering...
From £17,908
M P BUILDING LIMITED is an established and experienced local extension builder in Henlow. Please contact us for a free, no obligation quote and com...

Underpinning ranges from £17,348 (R&J Building Services Ltd based in SG17) to £17,908 (M P BUILDING LIMITED based in SG4), 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 Henlow by posting a job with HaMuch and we will send it to extension builders in Henlow.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Letchworth | £44 | £283 |
| Underpin A Building near Biggleswade | £41 | £268 |
| Underpin A Building near North Hertfordshire | £44 | £283 |
| Underpin A Building near Hitchin | £43 | £283 |
| Underpin A Building near Mid Bedfordshire | £42 | £276 |
| Underpin A Building near Stevenage | £44 | £282 |
| Underpin A Building near Ampthill | £38 | £258 |
| Underpin A Building near Kempston | £44 | £273 |
| Underpin A Building near Luton | £42 | £276 |
| Underpin A Building near South Bedfordshire | £45 | £278 |
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 - £17,745

Two storey extension - £88,367

Build a timber frame extension - £26,245

Build a swimming pool - £81,245

Single storey extension - £59,896

Side return extension - £44,254

Install an RSJ - £2,445

Outbuilding - £10,245

Build a Mansard loft conversion - £52,245

Loft conversion - £36,045

Build a kitchen extension - £42,245

Hip to gable loft conversion - £42,245

Granny annexe - £87,245

Garden office - £10,245

Convert a Garage - £16,245

Garage - £18,745

Build a flat roof extension - £22,245

Build a dormer loft conversion - £42,245

Concrete foundations - £6,495

Convert a bungalow loft - £29,245

Convert a basement - £40,254