From £17,572
J LLOYD CONSTRUCTION LTD are here to help customers who need an Extension Builder in Dunswell. We offer a competitive rate to complete all your ext...
From £17,188
JAK SITE SERVICES LIMITIED is an established extension buildering business in Dunswell. We come highly recommended and provide competitive quotes f...
From £17,108
Experienced extension builder ready to quote for your work. City Builders is the best extension builder in Dunswell. No obligation free quotes and ...
From £17,380
ACG Building Services is an established extension buildering business in Dunswell. We come highly recommended and provide competitive quotes for yo...
From £17,300
Need to find an Extension Builder near you for all your extension buildering work?
Ashley Cook Builders provides a local, trusted extension...
From £17,204
Need to find an Extension Builder near you for all your extension buildering work?
HEPWORTH BUILDING provides a local, trusted extension bu...
From £17,116
Need an Extension Builder in Dunswell? S.E.S Services has been helping local clients (20 mile radius) with their extension buildering jobs for many...
From £17,556
Patchett's Property Solutions & Management is an established and experienced local extension builder in Dunswell. Please contact us for a free, no ...
From £17,108
RB Building Services is an established extension buildering business in Dunswell. We come highly recommended and provide competitive quotes for you...
From £17,196
Absolute Finishes is an established extension buildering business in Dunswell. We come highly recommended and provide competitive quotes for your w...

Underpinning ranges from £17,108 (City Builders based in HU5) to £17,572 (J LLOYD CONSTRUCTION LTD based in HU7), 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 Dunswell by posting a job with HaMuch and we will send it to extension builders in Dunswell.
"Underpinning" - HU1, job posted 07/10/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Hull | £29 | £223 |
| Underpin A Building near Willerby | £29 | £221 |
| Underpin A Building near East Riding | £29 | £223 |
| Underpin A Building near Beverley | £29 | £223 |
| Underpin A Building near North Lincolnshire | £28 | £216 |
| Underpin A Building near Scunthorpe | £26 | £207 |
| Underpin A Building near Grimsby | £32 | £246 |
| Underpin A Building near North East Lincolnshire | £32 | £246 |
| Underpin A Building near Cleethorpes | £32 | £246 |
| Underpin A Building near Bridlington | £32 | £252 |
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 - £17,273

Two storey extension - £87,659

Build a timber frame extension - £25,773

Build a swimming pool - £80,773

Single storey extension - £50,456

Side return extension - £38,944

Install an RSJ - £1,973

Outbuilding - £9,773

Build a Mansard loft conversion - £51,773

Loft conversion - £31,620

Build a kitchen extension - £41,773

Hip to gable loft conversion - £41,773

Granny annexe - £86,773

Garden office - £9,773

Convert a Garage - £15,773

Garage - £18,273

Build a flat roof extension - £21,773

Build a dormer loft conversion - £41,773

Concrete foundations - £6,023

Convert a bungalow loft - £28,773

Convert a basement - £34,944