Need an Extension Builder in Gillingham? SD Build has been helping local clients (10 mile radius) with their extension buildering jobs for many yea...
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 Gillingham. No obligation f...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
I D S BUILDERS LIMITED is an established extension buildering business in Gillingham. We come highly recommended and provide competitive quotes for...
M K Builders Medway Ltd is an established extension buildering business in Gillingham. We come highly recommended and provide competitive quotes fo...

Underpinning ranges from £17,372 (Olis Hay Kent Limited based in ME10) 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 Gillingham by posting a job with HaMuch and we will send it to extension builders in Gillingham.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Larkfield | £41 | £253 |
| Underpin A Building near Maidstone | £40 | £255 |
| Underpin A Building near Gravesend | £40 | £260 |
| Underpin A Building near Sittingbourne | £35 | £246 |
| Underpin A Building near Northfleet | £41 | £261 |
| 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 - £17,606

Two storey extension - £88,160

Build a timber frame extension - £26,106

Build a swimming pool - £81,106

Single storey extension - £57,128

Side return extension - £42,697

Install an RSJ - £2,306

Outbuilding - £10,106

Build a Mansard loft conversion - £52,106

Loft conversion - £34,748

Build a kitchen extension - £42,106

Hip to gable loft conversion - £42,106

Granny annexe - £87,106

Garden office - £10,106

Convert a Garage - £16,106

Garage - £18,606

Build a flat roof extension - £22,106

Build a dormer loft conversion - £42,106

Concrete foundations - £6,356

Convert a bungalow loft - £29,106

Convert a basement - £38,697