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 £17,500
Experienced extension builder ready to quote for your work. Elite Building & Refurbishment Ltd is the best extension builder in ME17. No obligation...
From £17,756
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 £17,828
JLS Contstruction is an established and experienced local extension builder in ME17. Please contact us for a free, no obligation quote and competit...
From £17,428
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 £17,724
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 £17,588
Need an Extension Builder in ME17? Terlecki Ltd has been helping local clients (20 mile radius) with their extension buildering jobs for many years...

Underpinning ranges from £17,428 (Total Extensions Kent based in ME17) 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 - £17,605

Two storey extension - £88,158

Build a timber frame extension - £26,105

Build a swimming pool - £81,105

Single storey extension - £57,100

Side return extension - £42,681

Install an RSJ - £2,305

Outbuilding - £10,105

Build a Mansard loft conversion - £52,105

Loft conversion - £34,734

Build a kitchen extension - £42,105

Hip to gable loft conversion - £42,105

Granny annexe - £87,105

Garden office - £10,105

Convert a Garage - £16,105

Garage - £18,605

Build a flat roof extension - £22,105

Build a dormer loft conversion - £42,105

Concrete foundations - £6,355

Convert a bungalow loft - £29,105

Convert a basement - £38,681