From £17,644
Experienced extension builder ready to quote for your work. WOODMOOR CONSTRUCTION is the best extension builder in SO32. No obligation free quotes ...
From £17,580
Darren Hitchins T/A The Honest Builder is an established extension buildering business in SO32. We come highly recommended and provide competitive ...

Underpinning ranges from £17,580 (Darren Hitchins T/A The Honest Builder based in SO32) to £17,644 (WOODMOOR CONSTRUCTION based in SO32), 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 SO32 by posting a job with HaMuch and we will send it to extension builders in SO32.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Hedge End | £34 | £244 |
| Underpin A Building near Fareham | £35 | £250 |
| Underpin A Building near Locks Heath | £33 | £240 |
| Underpin A Building near Eastleigh | £34 | £244 |
| Underpin A Building near Chandler's Ford | £34 | £245 |
| Underpin A Building near Waterlooville | £36 | £250 |
| Underpin A Building near Horndean | £36 | £254 |
| Underpin A Building near Southampton | £34 | £243 |
| Underpin A Building near Winchester | £39 | £283 |
| Underpin A Building near Lee-on-the-Solent | £35 | £249 |
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 - £17,612

Two storey extension - £88,168

Build a timber frame extension - £26,112

Build a swimming pool - £81,112

Single storey extension - £57,240

Side return extension - £42,760

Install an RSJ - £2,312

Outbuilding - £10,112

Build a Mansard loft conversion - £52,112

Loft conversion - £34,800

Build a kitchen extension - £42,112

Hip to gable loft conversion - £42,112

Granny annexe - £87,112

Garden office - £10,112

Convert a Garage - £16,112

Garage - £18,612

Build a flat roof extension - £22,112

Build a dormer loft conversion - £42,112

Concrete foundations - £6,362

Convert a bungalow loft - £29,112

Convert a basement - £38,760