From £17,396
Experienced extension builder ready to quote for your work. George Davies Group Ltd is the best extension builder in Warminster. No obligation free...
From £17,780
Warminster, BA12
Need an Extension Builder in Warminster? EMBERSON GENERAL BUILDERS has been helping local clients (20 mile radius) with their extension buildering ...
From £17,364
Relax... you have found a reliable extension builder in Warminster. Bryan Loveday Services Limited is a friendly and reliable company based in Warm...
From £17,196
Need to find an Extension Builder near you for all your extension buildering work?
2 Counties Construction provides a local, trusted extens...
From £17,372
McIntosh DBR Ltd. is an established extension buildering business in Warminster. We come highly recommended and provide competitive quotes for your...
From £17,636
Experienced extension builder ready to quote for your work. Craft Renovations is the best extension builder in Warminster. No obligation free quote...
From £17,524
K E Sainsbury Builders is an established and experienced local extension builder in Warminster. Please contact us for a free, no obligation quote a...
From £17,780
Experienced extension builder ready to quote for your work. Burfitt and Garrett Ltd is the best extension builder in Warminster. No obligation free...
From £17,580
Relax... you have found a reliable extension builder in Warminster. HILLIER CONSTRUCTION is a friendly and reliable company based in Warminster who...

Underpinning ranges from £17,196 (2 Counties Construction based in SP3) to £17,796 (Prestige home improvements based in BA11), 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 Warminster by posting a job with HaMuch and we will send it to extension builders in Warminster.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Frome | £33 | £263 |
| Underpin A Building near Trowbridge | £34 | £266 |
| 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 Bath | £32 | £249 |
| Underpin A Building near Salisbury | £35 | £247 |
| Underpin A Building near Calne | £29 | £225 |
| Underpin A Building near Keynsham | £33 | £251 |
| Underpin A Building near Chippenham | £34 | £258 |
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 - £17,542

Two storey extension - £88,064

Build a timber frame extension - £26,042

Build a swimming pool - £81,042

Single storey extension - £55,848

Side return extension - £41,977

Install an RSJ - £2,242

Outbuilding - £10,042

Build a Mansard loft conversion - £52,042

Loft conversion - £34,148

Build a kitchen extension - £42,042

Hip to gable loft conversion - £42,042

Granny annexe - £87,042

Garden office - £10,042

Convert a Garage - £16,042

Garage - £18,542

Build a flat roof extension - £22,042

Build a dormer loft conversion - £42,042

Concrete foundations - £6,292

Convert a bungalow loft - £29,042

Convert a basement - £37,977