From £17,420
Experienced extension builder ready to quote for your work. HRS Home Renovation Solutions is the best extension builder in Gravesend. No obligati...
From £17,780
Gravesend, DA12
Need to find an Extension Builder near you for all your extension buildering work?
Ciad Building Services Ltd provides a local, trusted ext...
From £17,572
Need an Extension Builder in Gravesend? SD Build has been helping local clients (10 mile radius) with their extension buildering jobs for many year...
From £17,724
Kent, DA12
Brown Builders UK Ltd is a trusted extension builder serving customers in Gravesend and the surrounding area. Contact us to today to get a competit...
From £17,604
Bungar & Co ltd is a trusted extension builder serving customers in Gravesend and the surrounding area. Contact us to today to get a competitive qu...
From £17,684
Gravesend, DA12
Need to find an Extension Builder near you for all your extension buildering work?
GDL CONSTRUCTION provides a local, trusted extension bui...
From £17,780
GLADHOUSE CONSTRUCTION are here to help customers who need an Extension Builder in Gravesend. We offer a competitive rate to complete all your exte...
From £17,596
Beautiful Kitchens is a family-run company, owned and directed by husband and wife Debbie and Nigel Powell along with their daughter, Bethany, and ...
From £17,492
Warren Miller Building is an established extension buildering business in Gravesend. We come highly recommended and provide competitive quotes for ...
From £17,732
AMD Construction and Renovation Ltd is an established extension buildering business in Gravesend. We come highly recommended and provide competitiv...

Underpinning ranges from £17,420 (HRS Home Renovation Solutions based in DA12) to £17,780 (Ciad Building Services Ltd based in DA12), 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 Gravesend by posting a job with HaMuch and we will send it to extension builders in Gravesend.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Gravesend | £40 | £260 |
| Underpin A Building near Northfleet | £41 | £261 |
| Underpin A Building near Grays | £41 | £261 |
| Underpin A Building near Thurrock | £41 | £260 |
| Underpin A Building near Chafford Hundred | £41 | £261 |
| Underpin A Building near Rochester | £39 | £254 |
| Underpin A Building near Stanford-le-Hope | £40 | £254 |
| Underpin A Building near Chatham | £39 | £254 |
| Underpin A Building near South Ockendon | £57 | £276 |
| Underpin A Building near Dartford | £51 | £273 |
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 - £17,638

Two storey extension - £88,208

Build a timber frame extension - £26,138

Build a swimming pool - £81,138

Single storey extension - £57,768

Side return extension - £43,057

Install an RSJ - £2,338

Outbuilding - £10,138

Build a Mansard loft conversion - £52,138

Loft conversion - £35,048

Build a kitchen extension - £42,138

Hip to gable loft conversion - £42,138

Granny annexe - £87,138

Garden office - £10,138

Convert a Garage - £16,138

Garage - £18,638

Build a flat roof extension - £22,138

Build a dormer loft conversion - £42,138

Concrete foundations - £6,388

Convert a bungalow loft - £29,138

Convert a basement - £39,057