From £17,252
Devizes, SN10
Relax... you have found a reliable extension builder in Devizes. Lee Jackson Roofing Ltd is a friendly and reliable company based in Devizes who co...
From £17,396
Our building services company TG Roofing and Construction was established over 10 years ago and have been helping customers throughout Wiltshire by...
From £17,652
Devizes, SN10
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,372
MAKEPEACE BUILDING LTD is an established and experienced local extension builder in Devizes. Please contact us for a free, no obligation quote and ...
From £17,596
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,572
Relax... you have found a reliable extension builder in Devizes. TJ PROFESSIONAL BUILDERS T/A is a friendly and reliable company based in Devizes w...
From £17,556
DSA CONSTRUCTION is an established extension buildering business in Devizes. We come highly recommended and provide competitive quotes for your wor...
From £17,364
Turnkey Building and Project Management founded on 20 years experience in high end construction and development.
From £17,364
Relax... you have found a reliable extension builder in Devizes. A P BUILDING CONTRACTORS LTD is a friendly and reliable company based in Devizes w...
From £17,684
BEANACRE BUILDERS LTD are here to help customers who need an Extension Builder in Devizes. We offer a competitive rate to complete all your extensi...

Underpinning ranges from £17,252 (Lee Jackson Roofing Ltd based in SN10) to £17,684 (BEANACRE BUILDERS LTD based in SN12), 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 Devizes by posting a job with HaMuch and we will send it to extension builders in Devizes.
"Underpinning" - WEST WILTSHIRE, job posted 09/12/25
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Devizes | £32 | £242 |
| Underpin A Building near North Wiltshire | £32 | £242 |
| Underpin A Building near West Wiltshire | £32 | £242 |
| Underpin A Building near Calne | £29 | £225 |
| Underpin A Building near Trowbridge | £34 | £266 |
| Underpin A Building near Chippenham | £34 | £258 |
| Underpin A Building near Frome | £33 | £263 |
| Underpin A Building near Swindon | £38 | £238 |
| Underpin A Building near Thamesdown | £38 | £239 |
| Underpin A Building near Stratton St Margaret | £37 | £238 |
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 - £17,481

Two storey extension - £87,971

Build a timber frame extension - £25,981

Build a swimming pool - £80,981

Single storey extension - £54,616

Side return extension - £41,284

Install an RSJ - £2,181

Outbuilding - £9,981

Build a Mansard loft conversion - £51,981

Loft conversion - £33,570

Build a kitchen extension - £41,981

Hip to gable loft conversion - £41,981

Granny annexe - £86,981

Garden office - £9,981

Convert a Garage - £15,981

Garage - £18,481

Build a flat roof extension - £21,981

Build a dormer loft conversion - £41,981

Concrete foundations - £6,231

Convert a bungalow loft - £28,981

Convert a basement - £37,284