From £17,540
Relax... you have found a reliable extension builder in ME2. CLEAN ROOM CONSTRUCTION LTD is a friendly and reliable company based in ME2 who consid...
From £17,740
AF Renovations LTD is an established and experienced local extension builder in ME2. Please contact us for a free, no obligation quote and competit...
From £17,348
Experienced extension builder ready to quote for your work. ASTA BUILDING LTD is the best extension builder in ME2. No obligation free quotes and m...
From £17,860
Ikonic Developments Limited are here to help customers who need an Extension Builder in ME2. We offer a competitive rate to complete all your exten...
From £17,988
Relax... you have found a reliable extension builder in ME2. Roof Go Roofing Ltd is a friendly and reliable company based in ME2 who consider no jo...
From £17,476
Freeman V & Co are here to help customers who need an Extension Builder in ME2. We offer a competitive rate to complete all your extension builderi...
From £17,364
G J Roofing Services is an established and experienced local extension builder in ME2. Please contact us for a free, no obligation quote and compet...
From £17,780
STABILIS BUILDING SERVICES LTD is a trusted extension builder serving customers in ME2 and the surrounding area. Contact us to today to get a compe...
From £17,460
M K Builders Medway Ltd is an established extension buildering business in ME2. We come highly recommended and provide competitive quotes for your ...
From £17,404
Zeppelin Construction Ltd is a construction company based in Gillingham, Kent. We offer a wide range of construction services to both domestic and ...

Underpinning ranges from £17,348 (ASTA BUILDING LTD based in ME2) to £17,988 (Roof Go Roofing Ltd 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 ME2 by posting a job with HaMuch and we will send it to extension builders in ME2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Rochester | £39 | £254 |
| 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 Larkfield | £41 | £253 |
| Underpin A Building near Maidstone | £40 | £255 |
| Underpin A Building near Grays | £41 | £261 |
| Underpin A Building near Thurrock | £41 | £260 |
| 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 - £17,596

Two storey extension - £88,144

Build a timber frame extension - £26,096

Build a swimming pool - £81,096

Single storey extension - £56,920

Side return extension - £42,580

Install an RSJ - £2,296

Outbuilding - £10,096

Build a Mansard loft conversion - £52,096

Loft conversion - £34,650

Build a kitchen extension - £42,096

Hip to gable loft conversion - £42,096

Granny annexe - £87,096

Garden office - £10,096

Convert a Garage - £16,096

Garage - £18,596

Build a flat roof extension - £22,096

Build a dormer loft conversion - £42,096

Concrete foundations - £6,346

Convert a bungalow loft - £29,096

Convert a basement - £38,580