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 £17,532
Guildford, GU1
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
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 £18,636
Guildford, GU3
Paramount Brickwork Limited is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes...
From £17,820
M &M GENERAL BUILDING is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes for y...
From £17,924
Trusted and professional extension builder in Guildford. Experienced in all extension buildering work and keeping within budget and on quote. Chint...
From £17,820
Need an Extension Builder in Guildford? P J HARDIMAN BUILDING CONTRACT has been helping local clients (20 mile radius) with their extension builder...
From £17,212
K P WARNE BUILDERS is an established extension buildering business in Guildford. We come highly recommended and provide competitive quotes for your...
From £20,108
With well over a decade of marketing and web design experience working for a variety of tradespeople from cleaners through to builders, Websites 4 ...

Underpinning ranges from £17,212 (K P WARNE BUILDERS based in GU7) to £20,108 (Websites 4 Trades based in GU7), 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 Guildford by posting a job with HaMuch and we will send it to extension builders in Guildford.
| 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 Great Bookham | £42 | £281 |
| Underpin A Building near Farnborough | £41 | £273 |
| Underpin A Building near New Haw | £43 | £273 |
| Underpin A Building near Farnham | £41 | £276 |
| Underpin A Building near Camberley | £41 | £283 |
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 - £18,082

Two storey extension - £88,874

Build a timber frame extension - £26,582

Build a swimming pool - £81,582

Single storey extension - £66,648

Side return extension - £48,052

Install an RSJ - £2,782

Outbuilding - £10,582

Build a Mansard loft conversion - £52,582

Loft conversion - £39,210

Build a kitchen extension - £42,582

Hip to gable loft conversion - £42,582

Granny annexe - £87,582

Garden office - £10,582

Convert a Garage - £16,582

Garage - £19,082

Build a flat roof extension - £22,582

Build a dormer loft conversion - £42,582

Concrete foundations - £6,832

Convert a bungalow loft - £29,582

Convert a basement - £44,052