From £17,380
P D Builders is an established and experienced local extension builder in Isle Of Wight. Please contact us for a free, no obligation quote and comp...
From £17,708
Relax... you have found a reliable extension builder in Isle Of Wight. JP HILLMAN CARPTRY & GEN BUILD is a friendly and reliable company based in I...
From £17,388
Need an Extension Builder in Isle Of Wight? DJR CONSTRUCTION has been helping local clients (20 mile radius) with their extension buildering jobs f...
From £17,524
Experienced extension builder ready to quote for your work. STONEHAM CONSTRUCTION LIMITED is the best extension builder in Isle Of Wight. No obliga...
From £17,676
GKW BUILDING+DIY is an established and experienced local extension builder in Isle Of Wight. Please contact us for a free, no obligation quote and ...
From £17,476
Oakland Construction & Maintenance is an established extension buildering business in Isle Of Wight. We come highly recommended and provide competi...
From £17,572
Trusted and professional extension builder in Isle Of Wight. Experienced in all extension buildering work and keeping within budget and on quote. C...
From £17,612
'custom is all about ideas, about creating the right space for the right lifestyle, about design, function, environment and installation. above all...
From £17,332
Diamond Wight Building is an established and experienced local extension builder in Isle Of Wight. Please contact us for a free, no obligation quot...

Underpinning ranges from £16,844 (G A Headlam based in PO38) to £17,708 (JP HILLMAN CARPTRY & GEN BUILD based in PO30), 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 Isle Of Wight by posting a job with HaMuch and we will send it to extension builders in Isle Of Wight.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Isle of Wight | £34 | £246 |
| Underpin A Building near Lee-on-the-Solent | £35 | £249 |
| Underpin A Building near Gosport | £35 | £246 |
| Underpin A Building near Locks Heath | £33 | £240 |
| Underpin A Building near Fareham | £35 | £250 |
| Underpin A Building near Portsmouth | £36 | £250 |
| Underpin A Building near Southampton | £34 | £243 |
| Underpin A Building near Hedge End | £34 | £244 |
| Underpin A Building near Totton | £34 | £243 |
| Underpin A Building near Havant & Waterloo | £35 | £248 |
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 - £17,451

Two storey extension - £87,927

Build a timber frame extension - £25,951

Build a swimming pool - £80,951

Single storey extension - £54,024

Side return extension - £40,951

Install an RSJ - £2,151

Outbuilding - £9,951

Build a Mansard loft conversion - £51,951

Loft conversion - £33,293

Build a kitchen extension - £41,951

Hip to gable loft conversion - £41,951

Granny annexe - £86,951

Garden office - £9,951

Convert a Garage - £15,951

Garage - £18,451

Build a flat roof extension - £21,951

Build a dormer loft conversion - £41,951

Concrete foundations - £6,201

Convert a bungalow loft - £28,951

Convert a basement - £36,951