From £17,180
Trusted and professional extension builder in Haydon Wick. Experienced in all extension buildering work and keeping within budget and on quote. G R...
From £16,956
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,260
Dacol Services is Swindons number 1 property maintenance service.
Trusted by many letting agents, landlords, homeowners, and hoteliers.
From £17,596
MJ solutions is an established and experienced local extension builder in Haydon Wick. Please contact us for a free, no obligation quote and compe...
From £17,364
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,324
R & R BUILDERS is an established and experienced local extension builder in Haydon Wick. Please contact us for a free, no obligation quote and comp...
From £17,740
Experienced extension builder ready to quote for your work. Biocraft South West Ltd is the best extension builder in Haydon Wick. No obligation fre...
From £17,228
SWIFT DESIGN & BUILD LTD are here to help customers who need an Extension Builder in Haydon Wick. We offer a competitive rate to complete all your ...
From £17,420
Complete Driveway Solutions is an established and experienced local extension builder in Haydon Wick. Please contact us for a free, no obligation q...
From £17,372
Craig Donnelly Building Contractors Ltd is a trusted extension builder serving customers in Haydon Wick and the surrounding area. Contact us to tod...

Underpinning ranges from £16,956 (Watts Builders based in SN25) to £17,740 (Biocraft South West Ltd based in SN5), 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 Haydon Wick by posting a job with HaMuch and we will send it to extension builders in Haydon Wick.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Thamesdown | £38 | £239 |
| Underpin A Building near Stratton St Margaret | £37 | £238 |
| Underpin A Building near Swindon | £38 | £238 |
| Underpin A Building near Calne | £29 | £225 |
| Underpin A Building near Vale of White Horse | £36 | £271 |
| Underpin A Building near West Wiltshire | £32 | £242 |
| Underpin A Building near North Wiltshire | £32 | £242 |
| Underpin A Building near Witney | £32 | £244 |
| Underpin A Building near Chippenham | £34 | £258 |
| Underpin A Building near Devizes | £32 | £242 |
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 - £17,344

Two storey extension - £87,766

Build a timber frame extension - £25,844

Build a swimming pool - £80,844

Single storey extension - £51,880

Side return extension - £39,745

Install an RSJ - £2,044

Outbuilding - £9,844

Build a Mansard loft conversion - £51,844

Loft conversion - £32,288

Build a kitchen extension - £41,844

Hip to gable loft conversion - £41,844

Granny annexe - £86,844

Garden office - £9,844

Convert a Garage - £15,844

Garage - £18,344

Build a flat roof extension - £21,844

Build a dormer loft conversion - £41,844

Concrete foundations - £6,094

Convert a bungalow loft - £28,844

Convert a basement - £35,745