From £17,356
Firestone Surfacing Ltd is a trusted extension builder serving customers in Charminster and the surrounding area. Contact us to today to get a comp...
From £16,972
WEYMOUTH ROOFING CO. is an established and experienced local extension builder in Charminster. Please contact us for a free, no obligation quote an...
From £17,684
Experienced extension builder ready to quote for your work. WILD CONSTRUCTION LTD is the best extension builder in Charminster. No obligation free ...
From £16,700
MARLEY TRained roofer, reliable ,flat roofs , slating and tiling,fascias and gutters. All repairs, no job too small
From £17,564
Need an Extension Builder in Charminster? D&B Build has been helping local clients (20 mile radius) with their extension buildering jobs for many y...
From £17,620
Ground Up Building Services Ltd is a trusted extension builder serving customers in Charminster and the surrounding area. Contact us to today to ge...
From £17,292
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,692
Need to find an Extension Builder near you for all your extension buildering work?
J FLANN BUILDING & MAINTENANCE provides a local, trusted...
From £17,900
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,396
Steven Clark Building Services is an established and experienced local extension builder in Charminster. Please contact us for a free, no obligatio...

Underpinning ranges from £16,700 (GMD Roofing based in BH15) to £17,900 (Ed Bartlett Building Contractor based in DT9), 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 Charminster by posting a job with HaMuch and we will send it to extension builders in Charminster.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Dorchester | £30 | £230 |
| Underpin A Building near Weymouth | £33 | £260 |
| Underpin A Building near Yeovil | £34 | £294 |
| Underpin A Building near Poole | £38 | £250 |
| Underpin A Building near South Somerset | £62 | £270 |
| Underpin A Building near Bournemouth | £38 | £257 |
| Underpin A Building near Taunton | £31 | £242 |
| Underpin A Building near Bridgwater | £30 | £236 |
| Underpin A Building near Salisbury | £35 | £247 |
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 - £17,418

Two storey extension - £87,876

Build a timber frame extension - £25,918

Build a swimming pool - £80,918

Single storey extension - £53,352

Side return extension - £40,573

Install an RSJ - £2,118

Outbuilding - £9,918

Build a Mansard loft conversion - £51,918

Loft conversion - £32,978

Build a kitchen extension - £41,918

Hip to gable loft conversion - £41,918

Granny annexe - £86,918

Garden office - £9,918

Convert a Garage - £15,918

Garage - £18,418

Build a flat roof extension - £21,918

Build a dormer loft conversion - £41,918

Concrete foundations - £6,168

Convert a bungalow loft - £28,918

Convert a basement - £36,573