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 £17,100
Relax... you have found a reliable extension builder in CT12. Paragon Stone Design is a friendly and reliable company based in CT12 who consider no...
From £17,004
Christian Builders Margate Ltd is an established and experienced local extension builder in CT12. 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 £17,132
GDB CONSTRUCTION is a trusted extension builder serving customers in CT12 and the surrounding area. Contact us to today to get a competitive quote ...
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...
From £17,428
Teekay solutions Limited is an established and experienced local extension builder in CT12. Please contact us for a free, no obligation quote and c...
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 £16,812
All building work , all hoyse maintenance. House extension and refurbishment works.
From £17,156
At Wells & Co we offer a comprehensive building service. We specialise in Period properties, bespoke renovations and steel fabrication.Along with o...

Underpinning ranges from £16,812 (B H G M Ltd based in CT7) to £17,428 (Teekay solutions Limited based in CT9), 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 CT12 by posting a job with HaMuch and we will send it to extension builders in CT12.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Thanet | £24 | £187 |
| Underpin A Building near Margate | £24 | £187 |
| Underpin A Building near Ramsgate | £24 | £187 |
| Underpin A Building near Broadstairs | £24 | £187 |
| Underpin A Building near Deal | £22 | £174 |
| Underpin A Building near Herne Bay | £24 | £184 |
| Underpin A Building near Canterbury | £28 | £211 |
| Underpin A Building near Whitstable | £24 | £184 |
| Underpin A Building near Dover | £25 | £199 |
| Underpin A Building near Folkestone | £27 | £203 |
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 - £17,127

Two storey extension - £87,441

Build a timber frame extension - £25,627

Build a swimming pool - £80,627

Single storey extension - £47,544

Side return extension - £37,306

Install an RSJ - £1,827

Outbuilding - £9,627

Build a Mansard loft conversion - £51,627

Loft conversion - £30,255

Build a kitchen extension - £41,627

Hip to gable loft conversion - £41,627

Granny annexe - £86,627

Garden office - £9,627

Convert a Garage - £15,627

Garage - £18,127

Build a flat roof extension - £21,627

Build a dormer loft conversion - £41,627

Concrete foundations - £5,877

Convert a bungalow loft - £28,627

Convert a basement - £33,306