Mandala Building Services is a family-owned design and build maintenance company, encompassing everything from residential refurbishment to large-s...
Reliable and experienced extension builders with competitive rates and good at keeping within budget. Happy to provide examples of extension builde...
Ciaran Feeney
Need to find an Extension Builder near you for all your extension buildering work?
COMPLETE CIVIL ENGINEERING provides a local, trusted ext...
Chrysalis are here to help customers who need an Extension Builder in Oxhey. We offer a competitive rate to complete all your extension buildering ...
WHIPP CONSTRUCTION LTD is an established extension buildering business in Oxhey. We come highly recommended and provide competitive quotes for your...
C & A Contractors is a trusted extension builder serving customers in Oxhey and the surrounding area. Contact us to today to get a competitive quot...
J Wijayamohan
JJSR Construction Ltd is an established and experienced local extension builder in Oxhey. Please contact us for a free, no obligation quote and com...
Relax... you have found a reliable extension builder in Oxhey. PERFORMA CONSTRUCTION LIMITED is a friendly and reliable company based in Oxhey who ...
Volton Building & Paving is a trusted extension builder serving customers in Oxhey and the surrounding area. Contact us to today to get a competiti...
Krystian Wojasiewicz
Krystian Wojasiewicz is a trusted extension builder serving customers in Oxhey and the surrounding area. Contact us to today to get a competitive q...

Underpinning ranges from £17,572 (Chrysalis based in HA3) to £18,012 (Mandala Building Services based in WD6), 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 | £271 |
| Underpin A Building near Hillingdon | £63 | £276 |
| Underpin A Building near Gerrards Cross | £43 | £282 |
| Underpin A Building near Brent Cross | £43 | £272 |
| Underpin A Building near High Barnet | £43 | £272 |
| Underpin A Building near St Albans | £63 | £289 |
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 - £17,758

Two storey extension - £88,388

Build a timber frame extension - £26,258

Build a swimming pool - £81,258

Single storey extension - £60,168

Side return extension - £44,407

Install an RSJ - £2,458

Outbuilding - £10,258

Build a Mansard loft conversion - £52,258

Loft conversion - £36,173

Build a kitchen extension - £42,258

Hip to gable loft conversion - £42,258

Granny annexe - £87,258

Garden office - £10,258

Convert a Garage - £16,258

Garage - £18,758

Build a flat roof extension - £22,258

Build a dormer loft conversion - £42,258

Concrete foundations - £6,508

Convert a bungalow loft - £29,258

Convert a basement - £40,407