From £18,636
Paramount Brickwork Limited is an established extension buildering business in GU2. We come highly recommended and provide competitive quotes for y...
From £17,844
We work closely with our Clients to provide the most suitable procurement route to suit each Client’s requirements and aspirations. We are experi...
From £18,036
We provide structural engineering design and construction service (D&B) Our dedicated, enthusiastic and highly qualified staff to find the appropri...
From £17,820
Need an Extension Builder in GU2? P J HARDIMAN BUILDING CONTRACT has been helping local clients (20 mile radius) with their extension buildering jo...
From £17,892
Cannon Build Solutions is a local family-run building firm whose strong reliable reputation has been well established in North-West London and Buck...
From £17,820
M &M GENERAL BUILDING is an established extension buildering business in GU2. We come highly recommended and provide competitive quotes for your wo...
From £17,756
Need to find an Extension Builder near you for all your extension buildering work?
Griffin Design & Build provides a local, trusted extensi...
From £17,532
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
From £17,964
Victorian Roofing & Property Maintenance is an established and experienced local extension builder in GU2. Please contact us for a free, no obligat...
From £17,532
ALEXANDER BUILDERS is an established extension buildering business in GU2. We come highly recommended and provide competitive quotes for your work...

Underpinning ranges from £17,532 (Elite Roofing and Building based in GU1) to £18,636 (Paramount Brickwork Limited based in GU3), 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 GU2 by posting a job with HaMuch and we will send it to extension builders in GU2.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Guildford | £53 | £298 |
| Underpin A Building near Woking | £43 | £277 |
| Underpin A Building near Ash Vale | £41 | £277 |
| Underpin A Building near Waverley | £68 | £313 |
| Underpin A Building near Aldershot | £41 | £275 |
| Underpin A Building near Farnborough | £41 | £273 |
| Underpin A Building near Farnham | £41 | £276 |
| Underpin A Building near Camberley | £41 | £283 |
| Underpin A Building near New Haw | £43 | £273 |
| 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 - £17,883

Two storey extension - £88,575

Build a timber frame extension - £26,383

Build a swimming pool - £81,383

Single storey extension - £62,664

Side return extension - £45,811

Install an RSJ - £2,583

Outbuilding - £10,383

Build a Mansard loft conversion - £52,383

Loft conversion - £37,343

Build a kitchen extension - £42,383

Hip to gable loft conversion - £42,383

Granny annexe - £87,383

Garden office - £10,383

Convert a Garage - £16,383

Garage - £18,883

Build a flat roof extension - £22,383

Build a dormer loft conversion - £42,383

Concrete foundations - £6,633

Convert a bungalow loft - £29,383

Convert a basement - £41,811