From £17,468
Hatfield, AL10
Architecture and Construction all in one place.
FREE DRAWINGS for all projects we build.
From £17,780
Hatfield, AL10
Need to find an Extension Builder near you for all your extension buildering work?
Buildline provides a local, trusted extension buildering...
From £17,716
Hatfield, AL10
VALLEYCREST CONSTRUCTION LTD is a trusted extension builder serving customers in Hatfield and the surrounding area. Contact us to today to get a co...
From £17,844
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,572
Hatfield, AL10
A1 Home Care Building Maintenance are here to help customers who need an Extension Builder in Hatfield. We offer a competitive rate to complete all...
From £17,372
Hatfield, AL10
Mick O Farrell Builders are here to help customers who need an Extension Builder in Hatfield. We offer a competitive rate to complete all your exte...
From £17,732
Buyerz Trading is an established and experienced local extension builder in Hatfield. Please contact us for a free, no obligation quote and competi...
From £17,876
Need to find an Extension Builder near you for all your extension buildering work?
G FORCE BUILDERS provides a local, trusted extension bui...
From £17,708
NJG BUILDING SOLUTIONS LTD is an established and experienced local extension builder in Hatfield. Please contact us for a free, no obligation quote...
From £17,684
Lemsford Building is a trusted extension builder serving customers in Hatfield and the surrounding area. Contact us to today to get a competitive q...

Underpinning ranges from £17,372 (Mick O Farrell Builders based in AL10) to £17,876 (G FORCE BUILDERS based in AL9), 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 Hatfield by posting a job with HaMuch and we will send it to extension builders in Hatfield.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Hatfield | £64 | £283 |
| Underpin A Building near Welwyn Garden City | £42 | £268 |
| Underpin A Building near Potters Bar | £43 | £273 |
| Underpin A Building near St Albans | £63 | £288 |
| Underpin A Building near Harpenden | £86 | £315 |
| Underpin A Building near Hertford | £46 | £289 |
| Underpin A Building near Borehamwood | £42 | £270 |
| Underpin A Building near High Barnet | £43 | £272 |
| Underpin A Building near Cheshunt | £48 | £286 |
| Underpin A Building near Hoddesdon | £46 | £296 |
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 - £17,675

Two storey extension - £88,263

Build a timber frame extension - £26,175

Build a swimming pool - £81,175

Single storey extension - £58,504

Side return extension - £43,471

Install an RSJ - £2,375

Outbuilding - £10,175

Build a Mansard loft conversion - £52,175

Loft conversion - £35,393

Build a kitchen extension - £42,175

Hip to gable loft conversion - £42,175

Granny annexe - £87,175

Garden office - £10,175

Convert a Garage - £16,175

Garage - £18,675

Build a flat roof extension - £22,175

Build a dormer loft conversion - £42,175

Concrete foundations - £6,425

Convert a bungalow loft - £29,175

Convert a basement - £39,471