Need an Extension Builder in Chatham? SD Build has been helping local clients (10 mile radius) with their extension buildering jobs for many years....
Please call to discuss your building needs.
We are a family run business with over 30 years experience in the roofing industry. We pride ourselves on our high standards of workmanship and cus...
Mayfair developers have been in the construction industry for over a decade. Our passion is to transform old spaces into new usable homes for our c...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Experienced extension builder ready to quote for your work. SEAN EVANS GENERAL BUILDER is the best extension builder in Chatham. No obligation free...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
M K Builders Medway Ltd is an established extension buildering business in Chatham. We come highly recommended and provide competitive quotes for y...
AF Renovations LTD is an established and experienced local extension builder in Chatham. Please contact us for a free, no obligation quote and comp...
STABILIS BUILDING SERVICES LTD is a trusted extension builder serving customers in Chatham and the surrounding area. Contact us to today to get a c...

Underpinning ranges from £17,460 (M K Builders Medway Ltd based in ME4) to £17,924 (Des Durant General Building based in ME5), 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 Chatham by posting a job with HaMuch and we will send it to extension builders in Chatham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Larkfield | £41 | £253 |
| Underpin A Building near Gravesend | £40 | £260 |
| Underpin A Building near Maidstone | £40 | £255 |
| Underpin A Building near Northfleet | £41 | £261 |
| Underpin A Building near Sittingbourne | £35 | £246 |
| Underpin A Building near Canvey Island | £39 | £256 |
| Underpin A Building near Stanford-le-Hope | £40 | £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 - £17,675

Two storey extension - £88,263

Build a timber frame extension - £26,175

Build a swimming pool - £81,175

Single storey extension - £58,504

Side return extension - £43,471

Install an RSJ - £2,375

Outbuilding - £10,175

Build a Mansard loft conversion - £52,175

Loft conversion - £35,393

Build a kitchen extension - £42,175

Hip to gable loft conversion - £42,175

Granny annexe - £87,175

Garden office - £10,175

Convert a Garage - £16,175

Garage - £18,675

Build a flat roof extension - £22,175

Build a dormer loft conversion - £42,175

Concrete foundations - £6,425

Convert a bungalow loft - £29,175

Convert a basement - £39,471