Adam Porter
Need to find an Extension Builder near you for all your extension buildering work?
A-Pex Building provides a local, trusted extension build...
From £17,324
Relax... you have found a reliable extension builder in Deal. Cosbuild and Maintenance ltd is a friendly and reliable company based in Deal who con...
From £17,036
4D BUILDERS LTD are here to help customers who need an Extension Builder in Deal. We offer a competitive rate to complete all your e...

Underpinning ranges from £16,868 (A-Pex Building based in CT17) to £17,324 (Cosbuild and Maintenance ltd based in CT17), 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 Deal by posting a job with HaMuch and we will send it to extension builders in Deal.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Deal | £26 | £199 |
| Underpin A Building near Dover | £29 | £226 |
| Underpin A Building near Margate | £27 | £208 |
| Underpin A Building near Ramsgate | £27 | £208 |
| Underpin A Building near Broadstairs | £27 | £208 |
| Underpin A Building near Thanet | £27 | £208 |
| Underpin A Building near Folkestone | £31 | £233 |
| Underpin A Building near Canterbury | £31 | £232 |
| Underpin A Building near Herne Bay | £28 | £213 |
| Underpin A Building near Hythe | £31 | £228 |
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 - £17,076

Two storey extension - £87,364

Build a timber frame extension - £25,576

Build a swimming pool - £80,576

Single storey extension - £46,520

Side return extension - £36,730

Install an RSJ - £1,776

Outbuilding - £9,576

Build a Mansard loft conversion - £51,576

Loft conversion - £29,775

Build a kitchen extension - £41,576

Hip to gable loft conversion - £41,576

Granny annexe - £86,576

Garden office - £9,576

Convert a Garage - £15,576

Garage - £18,076

Build a flat roof extension - £21,576

Build a dormer loft conversion - £41,576

Concrete foundations - £5,826

Convert a bungalow loft - £28,576

Convert a basement - £32,730