From £18,116
HOUSE BUILDING SERVICES LIMITED is a trusted extension builder serving customers in ME1 and the surrounding area. Contact us to today to get a comp...
From £17,420
Masonic Plumbing and Heating Ltd are here to help customers who need an Extension Builder in ME1. We offer a competitive rate to complete all your ...
From £17,748
Need to find an Extension Builder near you for all your extension buildering work?
PFM General Building Services Ltd provides a local, trus...
From £17,716
Experienced extension builder ready to quote for your work. Liviu Toma is the best extension builder in ME1. No obligation free quotes and many hap...
From £17,756
Lover Build is an established and experienced local extension builder in ME1. Please contact us for a free, no obligation quote and competitive rat...
From £17,372
Need to find an Extension Builder near you for all your extension buildering work?
AMJAC CONSTRUCTION LTD provides a local, trusted extensi...
From £17,676
Witton & Pearce Builders in Essex is a trusted extension builder serving customers in ME1 and the surrounding area. Contact us to today to get a co...
From £17,772
P OUGHTON BUILDING is an established and experienced local extension builder in ME1. Please contact us for a free, no obligation quote and competit...
From £16,956
Experienced extension builder ready to quote for your work. Capital Roofing Ltd is the best extension builder in ME1. No obligation free quotes and...
From £17,860
Need an Extension Builder in ME1? Ellis & James Builders Limited has been helping local clients (20 mile radius) with their extension buildering jo...

Underpinning ranges from £16,956 (Capital Roofing Ltd based in SS13) to £18,116 (HOUSE BUILDING SERVICES LIMITED based in DA16), 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 ME1 by posting a job with HaMuch and we will send it to extension builders in ME1.
| 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 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 Grays | £41 | £261 |
| Underpin A Building near Sittingbourne | £35 | £246 |
| Underpin A Building near Thurrock | £41 | £260 |
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 - £17,639

Two storey extension - £88,209

Build a timber frame extension - £26,139

Build a swimming pool - £81,139

Single storey extension - £57,784

Side return extension - £43,066

Install an RSJ - £2,339

Outbuilding - £10,139

Build a Mansard loft conversion - £52,139

Loft conversion - £35,055

Build a kitchen extension - £42,139

Hip to gable loft conversion - £42,139

Granny annexe - £87,139

Garden office - £10,139

Convert a Garage - £16,139

Garage - £18,639

Build a flat roof extension - £22,139

Build a dormer loft conversion - £42,139

Concrete foundations - £6,389

Convert a bungalow loft - £29,139

Convert a basement - £39,066