From £17,636
Henfield, BN5
At PBS Build it Better we have been providing building services to customers in Brighton & Hove and throughout Sussex for over 40 years. As experie...
From £17,612
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,612
Diligence Builders are a skilled professional construction team who can undertake a wide range of building services from new builds and extensions ...
From £15,516
Ferguson Building Services Limited is an established and experienced local extension builder in Henfield. Please contact us for a free, no obligati...
From £17,492
Trusted and professional extension builder in Henfield. Experienced in all extension buildering work and keeping within budget and on quote. Salama...
From £17,692
Woodmans Construction are here to help customers who need an Extension Builder in Henfield. We offer a competitive rate to complete all your extens...
From £17,356
HEVIN BUILDERS is an established extension buildering business in Henfield. We come highly recommended and provide competitive quotes for your work...
From £17,516
F&N DESIGN & BUILD LTD are here to help customers who need an Extension Builder in Henfield. We offer a competitive rate to complete all your exten...
From £17,660
Trusted and professional extension builder in Henfield. Experienced in all extension buildering work and keeping within budget and on quote. W&S BU...
From £17,412
K. BRAND BUILDING LIMITED are here to help customers who need an Extension Builder in Henfield. We offer a competitive rate to complete all your ex...

Underpinning ranges from £15,516 (Ferguson Building Services Limited based in BN6) to £17,692 (Woodmans Construction based in BN43), 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 Henfield by posting a job with HaMuch and we will send it to extension builders in Henfield.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Burgess Hill | £36 | £240 |
| Underpin A Building near Shoreham-by-Sea | £36 | £250 |
| Underpin A Building near Lancing | £37 | £251 |
| Underpin A Building near Brighton and Hove | £35 | £251 |
| Underpin A Building near Haywards Heath | £35 | £256 |
| Underpin A Building near Worthing | £35 | £251 |
| Underpin A Building near Brighton | £35 | £251 |
| Underpin A Building near Horsham | £38 | £265 |
| Underpin A Building near Mid Sussex | £35 | £261 |
| Underpin A Building near Rustington | £36 | £246 |
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 - £17,350

Two storey extension - £87,776

Build a timber frame extension - £25,850

Build a swimming pool - £80,850

Single storey extension - £52,008

Side return extension - £39,817

Install an RSJ - £2,050

Outbuilding - £9,850

Build a Mansard loft conversion - £51,850

Loft conversion - £32,348

Build a kitchen extension - £41,850

Hip to gable loft conversion - £41,850

Granny annexe - £86,850

Garden office - £9,850

Convert a Garage - £15,850

Garage - £18,350

Build a flat roof extension - £21,850

Build a dormer loft conversion - £41,850

Concrete foundations - £6,100

Convert a bungalow loft - £28,850

Convert a basement - £35,817