From £17,356
CAMBRIDGE BUILDING SERVICES is a trusted extension builder serving customers in BN3 and the surrounding area. Contact us to today to get a competit...
From £17,404
Fenice Design + Build is an established and experienced local extension builder in BN3. Please contact us for a free, no obligation quote and compe...
From £17,796
Proper Copper DesignWe are a design lead copper homeware company specializing in contemporary handles, taps, showers and accessories. Our products ...
From £17,228
East building projects is an established extension buildering business in BN3. We come highly recommended and provide competitive quotes for your w...
From £17,380
KEN BUILDING is an established extension buildering business in BN3. We come highly recommended and provide competitive quotes for your work.
From £17,820
We are truly a 1 stop shop for any internal and external trade works. Using all
of our own guys we offer anything from small repairs to ...
From £17,524
Need to find an Extension Builder near you for all your extension buildering work?
Openshaw Living provides a local, trusted extension buil...
From £17,268
Experienced extension builder ready to quote for your work. Graeme Davies Plumbing and Heating is the best extension builder in BN3. No obligation ...
From £17,204
Experienced extension builder ready to quote for your work. Moon Tree is the best extension builder in BN3. No obligation free quotes and many happ...
From £17,596
Experienced extension builder ready to quote for your work. Pataross Projects is the best extension builder in BN3. No obligation free quotes and m...

Underpinning ranges from £17,204 (Moon Tree based in BN3) to £17,820 (Reactive Property Services Ltd 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 BN3 by posting a job with HaMuch and we will send it to extension builders in BN3.
"Underpinning" - BRIGHTON, job posted 01/01/70
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Brighton | £35 | £251 |
| Underpin A Building near Brighton and Hove | £35 | £251 |
| Underpin A Building near Shoreham-by-Sea | £36 | £250 |
| Underpin A Building near Lancing | £37 | £251 |
| Underpin A Building near Burgess Hill | £36 | £240 |
| Underpin A Building near Worthing | £35 | £251 |
| Underpin A Building near Haywards Heath | £35 | £256 |
| Underpin A Building near Seaford | £34 | £243 |
| Underpin A Building near Rustington | £36 | £246 |
| Underpin A Building near Mid Sussex | £35 | £261 |
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 - £17,458

Two storey extension - £87,936

Build a timber frame extension - £25,958

Build a swimming pool - £80,958

Single storey extension - £54,152

Side return extension - £41,023

Install an RSJ - £2,158

Outbuilding - £9,958

Build a Mansard loft conversion - £51,958

Loft conversion - £33,353

Build a kitchen extension - £41,958

Hip to gable loft conversion - £41,958

Granny annexe - £86,958

Garden office - £9,958

Convert a Garage - £15,958

Garage - £18,458

Build a flat roof extension - £21,958

Build a dormer loft conversion - £41,958

Concrete foundations - £6,208

Convert a bungalow loft - £28,958

Convert a basement - £37,023