From £17,524
Cannon Build Solutions is an established extension buildering business in Oxhey. We come highly recommended and provide competitive quotes for your...
From £17,724
Oxhey, WD19
Relax... you have found a reliable extension builder in Oxhey. C S C BUILDINGS LTD is a friendly and reliable company based in Oxhey who consider n...
From £17,804
Trusted and professional extension builder in Oxhey. Experienced in all extension buildering work and keeping within budget and on quote. Ideal Pla...
From £17,924
Oxhey Watford, WD19
Sharp Building Ltd is an established and experienced local extension builder in Oxhey. Please contact us for a free, no obligation quote and compet...
From £17,780
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £17,964
Oxhey Herts, WD19
In an unstable market house extensions are often the most viable option, helping you to get the most out of the space you have without the addition...
From £20,260
Trusted and professional extension builder in Oxhey. Experienced in all extension buildering work and keeping within budget and on quote. Design & ...
From £17,812
Relax... you have found a reliable extension builder in Oxhey. Frame Brickwork is a friendly and reliable company based in Oxhey who consider no jo...
From £17,924
Trusted and professional extension builder in Oxhey. Experienced in all extension buildering work and keeping within budget and on quote. S2M VENTU...
From £17,924
Experienced extension builder ready to quote for your work. 1st Choice Builders UK is the best extension builder in Oxhey. No obligation free quote...

Underpinning ranges from £17,524 (Cannon Build Solutions based in WD19) to £20,260 (Design & Build Builders Ltd based in WD18), 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 Oxhey by posting a job with HaMuch and we will send it to extension builders in Oxhey.
| Location in UK | Hourly Rate | Daily Rate |
|---|---|---|
| Underpin A Building near Watford | £43 | £278 |
| Underpin A Building near Bushey | £42 | £276 |
| Underpin A Building near Rickmansworth | £42 | £278 |
| Underpin A Building near Harrow | £43 | £270 |
| Underpin A Building near Borehamwood | £42 | £270 |
| Underpin A Building near Hillingdon | £62 | £276 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Brent Cross | £43 | £271 |
| Underpin A Building near High Barnet | £43 | £272 |
| Underpin A Building near St Albans | £63 | £288 |
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 - £18,064

Two storey extension - £88,846

Build a timber frame extension - £26,564

Build a swimming pool - £81,564

Single storey extension - £66,280

Side return extension - £47,845

Install an RSJ - £2,764

Outbuilding - £10,564

Build a Mansard loft conversion - £52,564

Loft conversion - £39,038

Build a kitchen extension - £42,564

Hip to gable loft conversion - £42,564

Granny annexe - £87,564

Garden office - £10,564

Convert a Garage - £16,564

Garage - £19,064

Build a flat roof extension - £22,564

Build a dormer loft conversion - £42,564

Concrete foundations - £6,814

Convert a bungalow loft - £29,564

Convert a basement - £43,845