Contact Numbers

We do not sell units direct to end users/customers, only to national stockists for which we have minimum order quantities. For sales enquiries or to order units please click here to find your local stockist directly.



VO4home has been incorporated into Powerstar.
If you have a question regarding your existing VO4 unit and are unable to make contact with the stockist who provided the unit please contact Powerstar on the below. All sales and order enquiries should be directed through one of your local stockists, as VO4 systems are not sold directly through Powerstar.

4 Cowley Way, Ecclesfield,

S35 1QP

Phone: 01142 576 200


Cyprus – National Contacts

EMS, Energy Management Systems, Sheffield

Ioanna Hadjipandeli
Tel : +357 24256063


L.J.H. Energy Zone Ltd
53 G. Grive Digeni Av
Karageorgis Building, Shop 3, 6036, Larnaca
Phone : +357 24256063