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...
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 £16,868
Need to find an Extension Builder near you for all your extension buildering work?
A-Pex Building provides a local, trusted extension build...
From £16,940
We been for almost 15 years in the building trade,
we are easy going and willing to work with our client and to archive the best r...
From £17,004
Christian Builders Margate Ltd is an established and experienced local extension builder in Deal. Please contact us for a free, no obligation quote...
From £17,324
Christian Builders Margate Ltd is a multi-service company founded by Nick Christian. We operate with a highly skilled team of designers, tradesmen,...
From £17,100
Relax... you have found a reliable extension builder in Deal. Paragon Stone Design is a friendly and reliable company based in Deal who consider no...
From £17,132
Design – our highly experienced design team can help you visualise your dream outcomes, working sympathetically with your space to find the perfe...
From £17,156
John Nicoll trained as a joiner and carpenter in St Andrew's, Fife. For over 30 years, he has been operating in the London area - setting up 5 Ways...
From £17,244
Need to find an Extension Builder near you for all your extension buildering work?
Bespoke building projects provides a local, trusted exte...

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 | £207 |
| 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 - £17,113

Two storey extension - £87,419

Build a timber frame extension - £25,613

Build a swimming pool - £80,613

Single storey extension - £47,256

Side return extension - £37,144

Install an RSJ - £1,813

Outbuilding - £9,613

Build a Mansard loft conversion - £51,613

Loft conversion - £30,120

Build a kitchen extension - £41,613

Hip to gable loft conversion - £41,613

Granny annexe - £86,613

Garden office - £9,613

Convert a Garage - £15,613

Garage - £18,113

Build a flat roof extension - £21,613

Build a dormer loft conversion - £41,613

Concrete foundations - £5,863

Convert a bungalow loft - £28,613

Convert a basement - £33,144