From £17,468
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of work in ME3 and...
From £17,780
STABILIS BUILDING SERVICES LTD is a trusted extension builder serving customers in ME3 and the surrounding area. Contact us to today to get a compe...
From £17,460
Need to find an Extension Builder near you for all your work?
McCready's Lofts & Refurbishments provides a local, trusted service in and ...
From £17,988
Relax... you have found a reliable extension builder in ME3. Roof Go Roofing Ltd is a friendly and reliable company based in ME3 who consider no jo...
From £17,860
Ikonic Developments Limited are here to help customers who need an Extension Builder in ME3. We offer a competitive rate to complete all your jobs...
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 ...
From £17,460
M K Builders Medway Ltd is an established business in ME3. We come highly recommended and provide competitive quotes for your work.
From £17,476
Freeman V & Co are here to help customers who need an Extension Builder in ME3. We offer a competitive rate to complete all your jobs to professio...
From £17,540
Relax... you have found a reliable extension builder in ME3. CLEAN ROOM CONSTRUCTION LTD is a friendly and reliable company based in ME3 who consid...
From £17,740
AF Renovations LTD is an established and experienced local extension builder in ME3. Please contact us for a free, no obligation quote and competit...

Underpinning ranges from £17,404 (Zeppelin Construction Ltd based in ME7) 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 ME3 by posting a job with HaMuch and we will send it to extension builders in ME3.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Chatham | £34 | £220 |
| Underpin A Building near Gillingham | £34 | £219 |
| Underpin A Building near Rochester | £34 | £220 |
| Underpin A Building near Canvey Island | £34 | £224 |
| Underpin A Building near Gravesend | £35 | £227 |
| Underpin A Building near Stanford-le-Hope | £35 | £222 |
| Underpin A Building near Northfleet | £35 | £227 |
| Underpin A Building near Thurrock | £36 | £227 |
| Underpin A Building near Thundersley | £34 | £223 |
| Underpin A Building near Chafford Hundred | £36 | £227 |
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 - £17,618

Two storey extension - £88,176

Build a timber frame extension - £26,118

Build a swimming pool - £81,118

Single storey extension - £57,352

Side return extension - £42,823

Install an RSJ - £2,318

Outbuilding - £10,118

Build a Mansard loft conversion - £52,118

Loft conversion - £34,853

Build a kitchen extension - £42,118

Hip to gable loft conversion - £42,118

Granny annexe - £87,118

Garden office - £10,118

Convert a Garage - £16,118

Garage - £18,618

Build a flat roof extension - £22,118

Build a dormer loft conversion - £42,118

Concrete foundations - £6,368

Convert a bungalow loft - £29,118

Convert a basement - £38,823