From £17,484
Relax... you have found a reliable extension builder in ME18. ARTBUILD LTD is a friendly and reliable company based in ME18 who consider no job as ...
From £17,372
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,316
Relax... you have found a reliable extension builder in ME18. JOHN HIGGINS BUILDING is a friendly and reliable company based in ME18 who c...
From £17,372
DAVID WILLIAMSON CONSTRUCTION is a trusted extension builder serving customers in ME18 and the surrounding area. Contact us to today to get a compe...
From £17,508
TJ RALPH BUILDINGS SERVICES is a trusted extension builder serving customers in ME18 and the surrounding area. Contact us to today to get a competi...
From £17,468
JOHN KNOWLES BUILDING SERVICES are here to help customers who need an Extension Builder in ME18. We offer a competitive rate to complete all your e...
From £17,404
Frisby Building have over 60 years of experience working in the building industry around Kent, specialising in kitchen and bathroom installations a...
From £17,412
Need to find an Extension Builder near you for all your extension buildering work?
Flisher Construction Ltd provides a local, trusted exten...
From £17,588
Kitchen and Project Installations are here to help customers who need an Extension Builder in ME18. We offer a competitive rate to complete all you...
From £17,228
Experienced extension builder ready to quote for your work. Lande Solutions Ltd is the best extension builder in ME18. No obligation free quotes an...

Underpinning ranges from £17,228 (Lande Solutions Ltd based in ME16) to £17,588 (Kitchen and Project Installations based in ME16), 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 ME18 by posting a job with HaMuch and we will send it to extension builders in ME18.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Larkfield | £41 | £253 |
| Underpin A Building near Maidstone | £40 | £255 |
| Underpin A Building near Tonbridge | £38 | £254 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Sevenoaks | £38 | £234 |
| Underpin A Building near Tunbridge Wells | £37 | £258 |
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Gravesend | £40 | £260 |
| Underpin A Building near Northfleet | £41 | £261 |
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 - £17,415

Two storey extension - £87,873

Build a timber frame extension - £25,915

Build a swimming pool - £80,915

Single storey extension - £53,304

Side return extension - £40,546

Install an RSJ - £2,115

Outbuilding - £9,915

Build a Mansard loft conversion - £51,915

Loft conversion - £32,955

Build a kitchen extension - £41,915

Hip to gable loft conversion - £41,915

Granny annexe - £86,915

Garden office - £9,915

Convert a Garage - £15,915

Garage - £18,415

Build a flat roof extension - £21,915

Build a dormer loft conversion - £41,915

Concrete foundations - £6,165

Convert a bungalow loft - £28,915

Convert a basement - £36,546