We are Dark Sparks We understand that to shut down the power to have electrical work done, Costs time and money. So we work when our clients don't Contact us anytime, to get the job done. BUNDY'S ELECTRICAL & SAFETY TESTING LIMITED is a company of electrical contractors based in Chester and serves Nationwide. We work in the Domestic, Commercial and Industrial sectors providing electrical services from general power to data, security and door access systems. Basically, if it carries a voltage... we do it! Some of our previous clients have been: Lloyd's Banking Group, Stanley Security Wates Construction