Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Jatinder Kahlon
Hi, I’m Jatinder. I’m a qualified electrician and gas safe registered professional with 10 years of experience in the trade. We specialise in l...
AG-Renovation Ltd is a trusted extension builder serving customers in Sunbury-on-thames and the surrounding area. Contact us to today to get a comp...
Varda
Need an Extension Builder in Sunbury-on-thames? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs ...
Trusted and professional extension builder in Sunbury-on-thames. Experienced in all extension buildering work and keeping within budget and on quot...
Hardeep Samra
MJ Builders (London) Ltd are here to help customers who need an Extension Builder in Sunbury-on-thames. We offer a competitive rate to complete all...
Bill Matharu
Matharu Buildings is an established extension buildering business in Sunbury-on-thames. We come highly recommended and provide competitive quotes f...
Albdeco Builders & Decorators Ltd is a trusted extension builder serving customers in Sunbury-on-thames and the surrounding area. Contact us to tod...
Bhupinder Singh
Trusted and professional extension builder in Sunbury-on-thames. Experienced in all extension buildering work and keeping within budget and on quot...

Underpinning ranges from £17,596 (Matharu Buildings based in UB4) to £17,956 (Albdeco Builders & Decorators Ltd based in KT1), 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 Sunbury-on-thames by posting a job with HaMuch and we will send it to extension builders in Sunbury-on-thames.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Sunbury-on-Thames | £42 | £279 |
| Underpin A Building near West Molesey | £43 | £279 |
| Underpin A Building near Walton-on-Thames | £43 | £277 |
| Underpin A Building near Elmbridge | £43 | £277 |
| Underpin A Building near Richmond Upon Thames | £43 | £274 |
| Underpin A Building near Esher | £43 | £274 |
| Underpin A Building near Hounslow | £43 | £281 |
| Underpin A Building near Staines-upon-Thames | £42 | £269 |
| Underpin A Building near New Haw | £43 | £273 |
| Underpin A Building near Kingston Upon Thames | £43 | £271 |
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 - £17,735

Two storey extension - £88,353

Build a timber frame extension - £26,235

Build a swimming pool - £81,235

Single storey extension - £59,704

Side return extension - £44,146

Install an RSJ - £2,435

Outbuilding - £10,235

Build a Mansard loft conversion - £52,235

Loft conversion - £35,955

Build a kitchen extension - £42,235

Hip to gable loft conversion - £42,235

Granny annexe - £87,235

Garden office - £10,235

Convert a Garage - £16,235

Garage - £18,735

Build a flat roof extension - £22,235

Build a dormer loft conversion - £42,235

Concrete foundations - £6,485

Convert a bungalow loft - £29,235

Convert a basement - £40,146