From £17,548
Experienced extension builder ready to quote for your work. J&J Building Solutions is the best extension builder in Walton-on-thames. No obligation...
From £17,836
Aerea is a trusted extension builder serving customers in Walton-on-thames and the surrounding area. Contact us to today to get a competitive quote...
1 review
From £17,692
NIECEIC / NAAPIT GASSAFE WATER REGULATIONS We offer services towards completion of high end construction projects to dis...
"Did callout made safe my elctrical work thanks" - reviewed 16/05/23, REECYRUSSO
From £17,892
Need an Extension Builder in Walton-on-thames? Samuele Paolini has been helping local clients (5 mile radius) with their extension buildering jobs...
From £17,692
Need an Extension Builder in Walton-on-thames? VA Structures has been helping local clients (10 mile radius) with their extension buildering jobs f...
From £17,780
Trusted and professional extension builder in Walton-on-thames. Experienced in all extension buildering work and keeping within budget and on quote...
From £17,812
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,652
I am a qualified, builder, electrician and plumber. I have been working in the construction industry for over 23 years and have built everything fr...
From £17,804
Hi we have 15 years of experience in building and construction industry our specialization is bathrooms and renovations please have a look at the w...
From £18,524
Buci builders ltd is a trusted extension builder serving customers in Walton-on-thames and the surrounding area. Contact us to today to get a compe...

Underpinning ranges from £17,548 (J&J Building Solutions based in SW16) to £18,524 (Buci builders ltd based in SE27), 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 Walton-on-thames by posting a job with HaMuch and we will send it to extension builders in Walton-on-thames.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Walton-on-Thames | £43 | £277 |
| Underpin A Building near Elmbridge | £43 | £277 |
| Underpin A Building near Esher | £43 | £274 |
| Underpin A Building near West Molesey | £43 | £279 |
| Underpin A Building near Sunbury-on-Thames | £42 | £279 |
| Underpin A Building near New Haw | £43 | £273 |
| Underpin A Building near Richmond Upon Thames | £43 | £274 |
| Underpin A Building near Kingston Upon Thames | £43 | £271 |
| Underpin A Building near Staines-upon-Thames | £42 | £269 |
| Underpin A Building near Hounslow | £43 | £281 |
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 - £17,823

Two storey extension - £88,485

Build a timber frame extension - £26,323

Build a swimming pool - £81,323

Single storey extension - £61,464

Side return extension - £45,136

Install an RSJ - £2,523

Outbuilding - £10,323

Build a Mansard loft conversion - £52,323

Loft conversion - £36,780

Build a kitchen extension - £42,323

Hip to gable loft conversion - £42,323

Granny annexe - £87,323

Garden office - £10,323

Convert a Garage - £16,323

Garage - £18,823

Build a flat roof extension - £22,323

Build a dormer loft conversion - £42,323

Concrete foundations - £6,573

Convert a bungalow loft - £29,323

Convert a basement - £41,136