From £17,644
We are a small family run business with over 20 years experience in brickwork, bathroom/kitchen fitting, roofing, landscaping, fencing, tiling and ...
From £17,692
Trusted and professional extension builder in Ventnor. Experienced in all extension buildering work and keeping within budget and on quote. A W PAV...
From £17,324
Self employed in building industry for the past 20 years.
local reliable.
From £17,580
Devscapes is an established extension buildering business in Ventnor. We come highly recommended and provide competitive quotes for your work.
...From £16,844
Ventnor, PO38
I have been in these trades for over 30 years.
From £17,652
Relax... you have found a reliable extension builder in Ventnor. 3Lance Developments Limited is a friendly and reliable company based in Ventnor wh...
From £17,476
O NEILL CONSTRUCTION LTD is an established extension buildering business in Ventnor. We come highly recommended and provide competitive quotes for ...
From £17,700
Trusted and professional extension builder in Ventnor. Experienced in all extension buildering work and keeping within budget and on quote. Rowan S...
From £17,308
Need to find an Extension Builder near you for all your extension buildering work?
Island Renovations provides a local, trusted extension b...
From £17,468
Experienced extension builder ready to quote for your work. Shepperd Developments is the best extension builder in Ventnor. No obligation free quot...

Underpinning ranges from £16,844 (G A Headlam based in PO38) to £17,700 (Rowan Services based in PO40), 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 Ventnor by posting a job with HaMuch and we will send it to extension builders in Ventnor.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Isle of Wight | £34 | £246 |
| Underpin A Building near Ryde | £34 | £255 |
| Underpin A Building near Lee-on-the-Solent | £35 | £249 |
| Underpin A Building near Gosport | £35 | £246 |
| Underpin A Building near Portsmouth | £36 | £250 |
| Underpin A Building near Fareham | £35 | £250 |
| Underpin A Building near Locks Heath | £33 | £240 |
| Underpin A Building near Havant & Waterloo | £35 | £248 |
| Underpin A Building near Havant | £35 | £249 |
| Underpin A Building near Waterlooville | £36 | £250 |
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 - £17,469

Two storey extension - £87,953

Build a timber frame extension - £25,969

Build a swimming pool - £80,969

Single storey extension - £54,376

Side return extension - £41,149

Install an RSJ - £2,169

Outbuilding - £9,969

Build a Mansard loft conversion - £51,969

Loft conversion - £33,458

Build a kitchen extension - £41,969

Hip to gable loft conversion - £41,969

Granny annexe - £86,969

Garden office - £9,969

Convert a Garage - £15,969

Garage - £18,469

Build a flat roof extension - £21,969

Build a dormer loft conversion - £41,969

Concrete foundations - £6,219

Convert a bungalow loft - £28,969

Convert a basement - £37,149