From £17,324
Trusted and professional extension builder in Canvey Island. Experienced in all extension buildering work and keeping within budget and on quote. S...
From £17,708
Need to find an Extension Builder near you for all your extension buildering work?
J A G Construction Southeast Ltd provides a local, trust...
From £17,836
Relax... you have found a reliable extension builder in Canvey Island. TGC Roofing is a friendly and reliable company based in Canvey Island who co...
From £17,404
CEDAR CONSTRUCTION (UK) LTD is an established and experienced local extension builder in Canvey Island. Please contact us for a free, no obligation...
From £17,716
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,924
Need to find an Extension Builder near you for all your extension buildering work?
LB Plastering Service provides a local, trusted extensio...
From £17,332
Need to find an Extension Builder near you for all your extension buildering work?
JBZ BUILDING provides a local, trusted extension builder...
From £17,628
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,564
STEVE HUGGINS BUILDING CONTRAC is an established extension buildering business in Canvey Island. We come highly recommended and provide competitive...
From £17,700
Need an Extension Builder in Canvey Island? Top Rooms Loft has been helping local clients (20 mile radius) with their extension buildering jobs for...

Underpinning ranges from £17,324 (Sylo Construction Limited based in SS8) to £17,924 (LB Plastering Service based in SS7), 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 Canvey Island by posting a job with HaMuch and we will send it to extension builders in Canvey Island.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Canvey Island | £39 | £256 |
| Underpin A Building near Thundersley | £38 | £251 |
| Underpin A Building near Rayleigh | £39 | £252 |
| Underpin A Building near Southend-on-Sea | £37 | £247 |
| Underpin A Building near Basildon | £39 | £251 |
| Underpin A Building near Stanford-le-Hope | £40 | £254 |
| Underpin A Building near Wickford | £39 | £255 |
| Underpin A Building near Billericay | £38 | £248 |
| Underpin A Building near Gillingham | £39 | £253 |
| Underpin A Building near Chatham | £39 | £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 - £17,614

Two storey extension - £88,170

Build a timber frame extension - £26,114

Build a swimming pool - £81,114

Single storey extension - £57,272

Side return extension - £42,778

Install an RSJ - £2,314

Outbuilding - £10,114

Build a Mansard loft conversion - £52,114

Loft conversion - £34,815

Build a kitchen extension - £42,114

Hip to gable loft conversion - £42,114

Granny annexe - £87,114

Garden office - £10,114

Convert a Garage - £16,114

Garage - £18,614

Build a flat roof extension - £22,114

Build a dormer loft conversion - £42,114

Concrete foundations - £6,364

Convert a bungalow loft - £29,114

Convert a basement - £38,778