Delamere Building Services is an established extension buildering business in ME6. We come highly recommended and provide competitive quotes for yo...
From £17,844
Sunley Projects is a trusted extension builder serving customers in ME6 and the surrounding area. Contact us to today to get a competitive quote fo...
From £17,588
We are a family run, specialist loft conversions company who design and build lofts and extensions in the South East and we pride ourselves on prov...
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 £17,316
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,276
Relax... you have found a reliable extension builder in ME6. Carey Property Development Ltd is a friendly and reliable company based in ME6 who con...
From £17,684
Roka Interiors is an established and experienced local extension builder in ME6. Please contact us for a free, no obligation quote and competitive ...
From £17,404
Need to find an Extension Builder near you for all your extension buildering work?
Holbrook Construction provides a local, trusted extensio...
From £17,588
Kitchen and Project Installations are here to help customers who need an Extension Builder in ME6. We offer a competitive rate to complete all your...

Underpinning ranges from £17,276 (Carey Property Development Ltd based in ME1) to £17,844 (Sunley Projects based in ME2), 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 ME6 by posting a job with HaMuch and we will send it to extension builders in ME6.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Larkfield | £41 | £253 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Maidstone | £40 | £255 |
| 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 |
| Underpin A Building near Sevenoaks | £38 | £234 |
| Underpin A Building near Grays | £41 | £261 |
| 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 - £17,508

Two storey extension - £88,012

Build a timber frame extension - £26,008

Build a swimming pool - £81,008

Single storey extension - £55,160

Side return extension - £41,590

Install an RSJ - £2,208

Outbuilding - £10,008

Build a Mansard loft conversion - £52,008

Loft conversion - £33,825

Build a kitchen extension - £42,008

Hip to gable loft conversion - £42,008

Granny annexe - £87,008

Garden office - £10,008

Convert a Garage - £16,008

Garage - £18,508

Build a flat roof extension - £22,008

Build a dormer loft conversion - £42,008

Concrete foundations - £6,258

Convert a bungalow loft - £29,008

Convert a basement - £37,590