From £18,020
Gray's Facilities and Maintenance Services Ltd is a trusted extension builder serving customers in SO24 and the surrounding area. Contact us to tod...
From £17,628
J White Developments is an established extension buildering business in SO24. We come highly recommended and provide competitive quotes for your wo...
From £17,780
APB provides a range of building services, including carpentry, plastering and decorating but specializing in stone, brick and tile. If you ne...
From £17,580
Darren Hitchins T/A The Honest Builder is an established extension buildering business in SO24. We come highly recommended and provide competitive ...
From £17,500
Connie & Bella Industry Ltd is a trusted extension builder serving customers in SO24 and the surrounding area. Contact us to today to get a competi...
From £17,388
Trusted and professional extension builder in SO24. Experienced in all extension buildering work and keeping within budget and on quote. Holstocks ...
From £17,700
Relax... you have found a reliable extension builder in SO24. RP Superstructures is a friendly and reliable company based in SO24 who consider no j...
From £17,684
RP Superstructures was formed in 2011 by principals Gerry Budd and Pat Sheehan following the successful build of Gerry’s own house, using his mul...
From £17,508
PJS Building Services is an established and experienced local extension builder in SO24. Please contact us for a free, no obligation quote and comp...
From £17,884
M J BUILDERS is an established and experienced local extension builder in SO24. Please contact us for a free, no obligation quote and competitive r...

Underpinning ranges from £17,388 (Holstocks Construction Ltd based in GU32) to £18,020 (Gray's Facilities and Maintenance Services Ltd based in SO23), 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 SO24 by posting a job with HaMuch and we will send it to extension builders in SO24.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Winchester | £31 | £225 |
| Underpin A Building near East Hampshire | £33 | £225 |
| Underpin A Building near Chandler's Ford | £30 | £216 |
| Underpin A Building near Eastleigh | £30 | £215 |
| Underpin A Building near Basingstoke | £33 | £232 |
| Underpin A Building near Horndean | £30 | £213 |
| Underpin A Building near Hedge End | £30 | £215 |
| Underpin A Building near Waterlooville | £31 | £213 |
| Underpin A Building near Basingstoke & Deane | £33 | £231 |
| Underpin A Building near Fareham | £31 | £217 |
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 - £17,667

Two storey extension - £88,251

Build a timber frame extension - £26,167

Build a swimming pool - £81,167

Single storey extension - £58,344

Side return extension - £43,381

Install an RSJ - £2,367

Outbuilding - £10,167

Build a Mansard loft conversion - £52,167

Loft conversion - £35,318

Build a kitchen extension - £42,167

Hip to gable loft conversion - £42,167

Granny annexe - £87,167

Garden office - £10,167

Convert a Garage - £16,167

Garage - £18,667

Build a flat roof extension - £22,167

Build a dormer loft conversion - £42,167

Concrete foundations - £6,417

Convert a bungalow loft - £29,167

Convert a basement - £39,381