From £17,836
Aerea is a trusted extension builder serving customers in GU8 and the surrounding area. Contact us to today to get a competitive quote for extensio...
From £17,372
Need an Extension Builder in GU8? MPS Home Improvements Ltd has been helping local clients (20 mile radius) with their extension buildering jobs fo...
1 review
From £17,980
New build, complete refurbishment and renovation service. We provide a quality turnkey service in Central London , South West London
"Vpbuildesign installed a kitchen and bathroom at my property and did an absolutely excellent job. I could not have asked for better and would definitely recommend giving them the opportunity to complete any building work required as I found the work to be exceptional." - reviewed 21/06/23, LUCAS REID
From £17,652
Experienced extension builder ready to quote for your work. ADW Roofing Services is the best extension builder in GU8. No obligation free quotes an...
From £17,428
Holt Builders Ltd are here to help customers who need an Extension Builder in GU8. We offer a competitive rate to complete all your extension build...
From £17,668
R S Construction (Surrey) is an established extension buildering business in GU8. We come highly recommended and provide competitive quotes for you...
From £17,564
Need to find an Extension Builder near you for all your extension buildering work?
MPE Brickwork provides a local, trusted extension builde...
From £17,884
M B Building & Construction Ltd is a trusted extension builder serving customers in GU8 and the surrounding area. Contact us to today to get a comp...
From £17,724
Ayling & Sons Roofing Ltd is an established and experienced local extension builder in GU8. Please contact us for a free, no obligation quote and c...
From £17,900
The Roof Doctor is an established and experienced local extension builder in GU8. Please contact us for a free, no obligation quote and competitive...

Underpinning ranges from £17,372 (MPS Home Improvements Ltd based in RH14) to £17,980 (Vpbuildesign Ltd based in KT11), 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 GU8 by posting a job with HaMuch and we will send it to extension builders in GU8.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Waverley | £68 | £313 |
| Underpin A Building near Guildford | £53 | £298 |
| Underpin A Building near Farnham | £41 | £276 |
| Underpin A Building near Aldershot | £41 | £275 |
| Underpin A Building near Ash Vale | £41 | £277 |
| Underpin A Building near Farnborough | £41 | £272 |
| Underpin A Building near Woking | £43 | £277 |
| Underpin A Building near Fleet | £41 | £270 |
| Underpin A Building near Camberley | £41 | £282 |
| Underpin A Building near Great Bookham | £42 | £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 - £17,701

Two storey extension - £88,301

Build a timber frame extension - £26,201

Build a swimming pool - £81,201

Single storey extension - £59,016

Side return extension - £43,759

Install an RSJ - £2,401

Outbuilding - £10,201

Build a Mansard loft conversion - £52,201

Loft conversion - £35,633

Build a kitchen extension - £42,201

Hip to gable loft conversion - £42,201

Granny annexe - £87,201

Garden office - £10,201

Convert a Garage - £16,201

Garage - £18,701

Build a flat roof extension - £22,201

Build a dormer loft conversion - £42,201

Concrete foundations - £6,451

Convert a bungalow loft - £29,201

Convert a basement - £39,759