From £17,740
Harmony contractor's is an established and experienced local extension builder in TN27. Please contact us for a free, no obligation quote and compe...
From £18,164
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,716
Trusted and professional extension builder in TN27. Experienced in all extension buildering work and keeping within budget and on quote. Teamwork T...
From £17,452
Need to find an Extension Builder near you for all your extension buildering work?
Vernacular Homes provides a local, trusted extension bui...
From £17,460
Experienced extension builder ready to quote for your work. J NARCHANT BUILDING is the best extension builder in TN27. No obligation free quotes an...
From £17,284
Need an Extension Builder in TN27? C.Scott Building ltd has been helping local clients (20 mile radius) with their extension buildering jobs for ma...
From £17,300
Need an Extension Builder in TN27? J TWEEDIE BUILDING SERVICES has been helping local clients (20 mile radius) with their extension buildering jobs...
From £17,428
Total Extensions Kent is an established and experienced local extension builder in TN27. Please contact us for a free, no obligation quote and comp...
From £19,996
All my work is top class and I've taken pride in everything I do I will come and hire me
From £17,420
Need to find an Extension Builder near you for all your extension buildering work?
Broardview Construction provides a local, trusted extens...

Underpinning ranges from £17,284 (C.Scott Building ltd based in Tn23) to £19,996 (Transform Builders based in TN12), 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 TN27 by posting a job with HaMuch and we will send it to extension builders in TN27.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Ashford | £36 | £256 |
| Underpin A Building near Maidstone | £40 | £255 |
| Underpin A Building near Swale | £35 | £241 |
| Underpin A Building near Sittingbourne | £35 | £246 |
| Underpin A Building near Faversham | £34 | £235 |
| Underpin A Building near Larkfield | £41 | £253 |
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near Rochester | £39 | £254 |
| 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 - £17,796

Two storey extension - £88,444

Build a timber frame extension - £26,296

Build a swimming pool - £81,296

Single storey extension - £60,920

Side return extension - £44,830

Install an RSJ - £2,496

Outbuilding - £10,296

Build a Mansard loft conversion - £52,296

Loft conversion - £36,525

Build a kitchen extension - £42,296

Hip to gable loft conversion - £42,296

Granny annexe - £87,296

Garden office - £10,296

Convert a Garage - £16,296

Garage - £18,796

Build a flat roof extension - £22,296

Build a dormer loft conversion - £42,296

Concrete foundations - £6,546

Convert a bungalow loft - £29,296

Convert a basement - £40,830