From £17,428
Total Extensions Kent is an established and experienced local extension builder in ME17. Please contact us for a free, no obligation quote and comp...
From £17,500
Experienced extension builder ready to quote for your work. Elite Building & Refurbishment Ltd is the best extension builder in ME17. No obligation...
From £17,580
We thrive on a challenge, and really enjoy working with our client's to provide a high quality finished product within the budget required. Whether...
From £17,436
Experienced extension builder ready to quote for your work. Direct Build Ltd is the best extension builder in ME17. No obligation free quotes and m...
From £17,724
Relax... you have found a reliable extension builder in ME17. Timberlogbuild LTD is a friendly and reliable company based in ME17 who consider no j...
From £17,756
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,588
Need an Extension Builder in ME17? Terlecki Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many years...
From £17,828
JLS Contstruction is an established and experienced local extension builder in ME17. Please contact us for a free, no obligation quote and competit...
From £17,420
Alpha Projects Ltd are here to help customers who need an Extension Builder in ME17. We offer a competitive rate to complete all your extension bui...

Underpinning ranges from £16,868 (Rafs based in ME15) to £17,828 (JLS Contstruction based in ME15), 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 ME17 by posting a job with HaMuch and we will send it to extension builders in ME17.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Maidstone | £40 | £255 |
| Underpin A Building near Larkfield | £41 | £253 |
| Underpin A Building near Sittingbourne | £35 | £246 |
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near Swale | £35 | £241 |
| Underpin A Building near Ashford | £36 | £256 |
| Underpin A Building near Faversham | £34 | £235 |
| Underpin A Building near Tonbridge | £38 | £254 |
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 - £17,513

Two storey extension - £88,019

Build a timber frame extension - £26,013

Build a swimming pool - £81,013

Single storey extension - £55,256

Side return extension - £41,644

Install an RSJ - £2,213

Outbuilding - £10,013

Build a Mansard loft conversion - £52,013

Loft conversion - £33,870

Build a kitchen extension - £42,013

Hip to gable loft conversion - £42,013

Granny annexe - £87,013

Garden office - £10,013

Convert a Garage - £16,013

Garage - £18,513

Build a flat roof extension - £22,013

Build a dormer loft conversion - £42,013

Concrete foundations - £6,263

Convert a bungalow loft - £29,013

Convert a basement - £37,644