Hollisters (Electrical Contractors) Limited was established in 1928, making it one of the oldest electrical contractors in the Gravesham area, if not the country. Hollisters (Electrical Contractors) Limited are on the approved contractors lists to carry out works for many local authorities, The Environment Agency, DHL Supply Chain, Tradeteam, University Of Greenwich and many local schools in the North Kent area. We are National Inspection Council (NICEIC), Constructionline, KCC and Part "P" Approved Contractors.