WEYMOUTH ROOFING CO. is an established and experienced local extension builder in DT5. Please contact us for a free, no obligation quote and compet...
From £17,532
Design Properties & Renovations is an established and experienced local extension builder in DT5. Please contact us for a free, no obligation quote...
From £17,580
D WHYTON BUILDING SERVICES LTD is a trusted extension builder serving customers in DT5 and the surrounding area. Contact us to today to get a compe...
From £17,644
Weymouth based property Investment and Re-development: Upcycling discarded materials to provide bespoke interior refurbishments, full property reno...

Underpinning ranges from £16,972 (WEYMOUTH ROOFING CO. based in DT4) to £17,644 (Upcycle Interiors Limited based in DT4), 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 DT5 by posting a job with HaMuch and we will send it to extension builders in DT5.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Weymouth | £33 | £260 |
| Underpin A Building near Dorchester | £30 | £230 |
| Underpin A Building near Poole | £38 | £250 |
| Underpin A Building near Bournemouth | £38 | £257 |
| Underpin A Building near Yeovil | £34 | £294 |
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 - £17,432

Two storey extension - £87,898

Build a timber frame extension - £25,932

Build a swimming pool - £80,932

Single storey extension - £53,640

Side return extension - £40,735

Install an RSJ - £2,132

Outbuilding - £9,932

Build a Mansard loft conversion - £51,932

Loft conversion - £33,113

Build a kitchen extension - £41,932

Hip to gable loft conversion - £41,932

Granny annexe - £86,932

Garden office - £9,932

Convert a Garage - £15,932

Garage - £18,432

Build a flat roof extension - £21,932

Build a dormer loft conversion - £41,932

Concrete foundations - £6,182

Convert a bungalow loft - £28,932

Convert a basement - £36,735