From £17,660
Southwick, BN42
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,604
Need an Extension Builder in Southwick? Warrior Brickwork has been helping local clients (20 mile radius) with their extension buildering jobs for ...
From £17,460
Trusted and professional extension builder in Southwick. Experienced in all extension buildering work and keeping within budget and on quote. BRICK...
From £17,484
Need to find an Extension Builder near you for all your extension buildering work?
FIRST FORMAT BUILDING provides a local, trusted extensio...
From £17,260
Woodhart Group is an established extension buildering business in Southwick. We come highly recommended and provide competitive quotes for your wor...
From £17,412
K. BRAND BUILDING LIMITED are here to help customers who need an Extension Builder in Southwick. We offer a competitive rate to complete all your e...
From £17,228
East building projects is an established extension buildering business in Southwick. We come highly recommended and provide competitive quotes for ...
From £17,796
Proper Copper DesignWe are a design lead copper homeware company specializing in contemporary handles, taps, showers and accessories. Our products ...
From £17,380
KEN BUILDING is an established extension buildering business in Southwick. We come highly recommended and provide competitive quotes for your work....
From £17,404
Fenice Design + Build is an established and experienced local extension builder in Southwick. Please contact us for a free, no obligation quote and...

Underpinning ranges from £17,228 (East building projects based in bn3) to £17,796 (Proper Copper Design based in BN3), 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 Southwick by posting a job with HaMuch and we will send it to extension builders in Southwick.
"Underpinning" - BRIGHTON
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Shoreham-by-Sea | £31 | £217 |
| Underpin A Building near Lancing | £32 | £219 |
| Underpin A Building near Brighton | £30 | £219 |
| Underpin A Building near Brighton and Hove | £30 | £219 |
| Underpin A Building near Worthing | £31 | £222 |
| Underpin A Building near Burgess Hill | £31 | £208 |
| Underpin A Building near Rustington | £32 | £220 |
| Underpin A Building near Haywards Heath | £30 | £222 |
| Underpin A Building near Littlehampton | £32 | £219 |
| Underpin A Building near Mid Sussex | £30 | £224 |
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