From £17,524
House Construction ltd is a trusted extension builder serving customers in East Sussex and the surrounding area. Contact us to today to get a compe...
From £17,508
Business CategoriesBathroom Planners and Furnishers, Builders, Building Services, Cabinet Makers, Decking, Flooring Services, Home Improvem...
From £17,356
Orchard Timberworks is a Brighton based Carpentry and Joinery business, located in the beautiful South Downs. We specialise in custom Carpentry and...
From £17,628
Build Safe Ltd is an established and experienced local extension builder in East Sussex. Please contact us for a free, no obligation quote and comp...
From £17,572
Relax... you have found a reliable extension builder in East Sussex. R & G Construction Brighton Ltd is a friendly and reliable company based in Ea...
From £17,196
Trusted and professional extension builder in East Sussex. Experienced in all extension buildering work and keeping within budget and on quote. Con...
From £17,332
Need to find an Extension Builder near you for all your extension buildering work?
Bright Green Homes LLP provides a local, trusted extensi...
From £17,340
The studio is based on our founder's vision in concept and interior design, Fabio Lauro has long been in the business of creating atmospheres. His ...
From £17,364
Brightspace Renovations is an established extension buildering business in East Sussex. We come highly recommended and provide competitive quotes f...
From £17,580
We are a small, professional and friendly team of Interior Designers and Project Managers working in Brighton, London, Sussex and the South East. W...

Underpinning ranges from £17,196 (Construct Brighton based in BN1) to £17,628 (Build Safe Ltd based in BN1), 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 East Sussex by posting a job with HaMuch and we will send it to extension builders in East Sussex.
"Underpinning" - BRIGHTON
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Brighton and Hove | £35 | £251 |
| Underpin A Building near Brighton | £35 | £251 |
| Underpin A Building near Shoreham-by-Sea | £36 | £250 |
| Underpin A Building near Burgess Hill | £36 | £240 |
| Underpin A Building near Lancing | £37 | £251 |
| 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 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 - £17,440

Two storey extension - £87,910

Build a timber frame extension - £25,940

Build a swimming pool - £80,940

Single storey extension - £53,800

Side return extension - £40,825

Install an RSJ - £2,140

Outbuilding - £9,940

Build a Mansard loft conversion - £51,940

Loft conversion - £33,188

Build a kitchen extension - £41,940

Hip to gable loft conversion - £41,940

Granny annexe - £86,940

Garden office - £9,940

Convert a Garage - £15,940

Garage - £18,440

Build a flat roof extension - £21,940

Build a dormer loft conversion - £41,940

Concrete foundations - £6,190

Convert a bungalow loft - £28,940

Convert a basement - £36,825