From £17,644
Need to find an Extension Builder near you for all your extension buildering work?
TPJ Building Ltd provides a local, trusted extension bui...
From £17,724
LTM Construction is an established and experienced local extension builder in East Hertfordshire. Please contact us for a free, no obligation quote...
From £17,828
Reid James is a family run Building and Construction company based in Ware, Hertfordshire who cover all areas in London, Essex, Cambridge, and Bedf...
From £17,956
Steve Rolt Home Improvements Ltd was founded in 2016 in Buntingford, Hertfordshire, and from small beginnings, has gone from stren...
From £18,004
WALKERN CONSTRUCTION LIMITED is an established and experienced local extension builder in East Hertfordshire. Please contact us for a free, no obli...
From £17,956
Relax... you have found a reliable extension builder in East Hertfordshire. Up and Out Builds Ltd is a friendly and reliable company based in East ...
From £17,820
Bournes Projects LTD is an established and experienced local extension builder in East Hertfordshire. Please contact us for a free, no obligation q...
From £17,596
Relax... you have found a reliable extension builder in East Hertfordshire. GB Build is a friendly and reliable company based in East Hertfordshire...
From £17,732
Need an Extension Builder in East Hertfordshire? JK Character Construction Ltd has been helping local clients (20 mile radius) with their extension...
From £17,660
Experienced extension builder ready to quote for your work. Precision Roofing & Building Maintenance is the best extension builder in East Hertford...

Underpinning ranges from £17,596 (GB Build based in SG2) to £18,004 (WALKERN CONSTRUCTION LIMITED based in SG2), 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 East Hertfordshire by posting a job with HaMuch and we will send it to extension builders in East Hertfordshire.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near East Hertfordshire | £44 | £289 |
| Underpin A Building near Ware | £47 | £296 |
| Underpin A Building near Hertford | £46 | £289 |
| Underpin A Building near Stevenage | £44 | £282 |
| Underpin A Building near North Hertfordshire | £44 | £283 |
| Underpin A Building near Welwyn Garden City | £42 | £268 |
| Underpin A Building near Hoddesdon | £46 | £296 |
| Underpin A Building near Hitchin | £43 | £283 |
| Underpin A Building near Letchworth | £44 | £283 |
| Underpin A Building near Bishop's Stortford | £42 | £264 |
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 - £17,792

Two storey extension - £88,438

Build a timber frame extension - £26,292

Build a swimming pool - £81,292

Single storey extension - £60,840

Side return extension - £44,785

Install an RSJ - £2,492

Outbuilding - £10,292

Build a Mansard loft conversion - £52,292

Loft conversion - £36,488

Build a kitchen extension - £42,292

Hip to gable loft conversion - £42,292

Granny annexe - £87,292

Garden office - £10,292

Convert a Garage - £16,292

Garage - £18,792

Build a flat roof extension - £22,292

Build a dormer loft conversion - £42,292

Concrete foundations - £6,542

Convert a bungalow loft - £29,292

Convert a basement - £40,785