Watford Control Instruments Ltd was established in 1947 with the aim of tackling the post-war mains supply problems of the period, which became even more acute with the introduction of sophisticated mains powered equipment. Ever since then, Watford Control has specialized in AC Voltage Stabilization and Power Conditioning, solving mains supply problems globally.

Wren Electrical provides electrical and solar energy solutions across Essex. Trading for over 20 years, Wren Electrical is a professional and trusted business with a wealth of experience. They undertake both domestic and commercial electrical repairs, installations, testing and inspection services, as well as providing solar panel installation from small domestic properties to big commercial units.