Brian
Prestige Build Services LTD is a trusted extension builder serving customers in Stratton St Margaret and the surrounding area. Contact us to today ...
Michael Walklett
All of our business is by recommendation. We have never advertised. We have been trading since 2001 and have our regular customers we have done var...
Jaroslaw Garbacz
MJ solutions is an established and experienced local extension builder in Stratton St Margaret. Please contact us for a free, no obligation quote ...
Tom Dunn
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
John Howell
MR HOWELL are here to help customers who need an Extension Builder in Stratton St Margaret. We offer a competitive rate to complete all your extens...
Need to find an Extension Builder near you for all your extension buildering work?
A S A BUILDING SERVICES LTD provides a local, trusted ex...
A D BUILDING SERVICES T/A is a trusted extension builder serving customers in Stratton St Margaret and the surrounding area. Contact us to today to...
We have a skilled and dedicated team of professional tradesmen to carry out all your requirements. Whether you are looking to build, extend or upgr...
Need to find an Extension Builder near you for all your extension buildering work?
QUALITY BUILDERS provides a local, trusted extension bui...
Bob Watts
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...

Underpinning ranges from £16,956 (Watts Builders based in SN25) to £17,652 (Prestige Build Services 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 Stratton St Margaret by posting a job with HaMuch and we will send it to extension builders in Stratton St Margaret.
"Underpin a building" - SN3, job posted 09/05/26
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Stratton St Margaret | £32 | £238 |
| Underpin A Building near Swindon | £31 | £238 |
| Underpin A Building near Thamesdown | £31 | £239 |
| Underpin A Building near Vale of White Horse | £36 | £271 |
| Underpin A Building near Calne | £29 | £225 |
| Underpin A Building near Witney | £32 | £244 |
| Underpin A Building near North Wiltshire | £32 | £242 |
| Underpin A Building near West Wiltshire | £32 | £242 |
| Underpin A Building near Devizes | £32 | £242 |
| 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 - £17,347

Two storey extension - £87,771

Build a timber frame extension - £25,847

Build a swimming pool - £80,847

Single storey extension - £51,944

Side return extension - £39,781

Install an RSJ - £2,047

Outbuilding - £9,847

Build a Mansard loft conversion - £51,847

Loft conversion - £32,318

Build a kitchen extension - £41,847

Hip to gable loft conversion - £41,847

Granny annexe - £86,847

Garden office - £9,847

Convert a Garage - £15,847

Garage - £18,347

Build a flat roof extension - £21,847

Build a dormer loft conversion - £41,847

Concrete foundations - £6,097

Convert a bungalow loft - £28,847

Convert a basement - £35,781