Power Vac was established in Winnipeg in 1966 as a duct cleaning/general vacuuming company. Power Vac grew to become a national environmental contracting company with a network of independent offices from coast to coast. Power Environmental Management and Power Environmental Contracting are subsidiaries of 708734 Ontario Limited (operating as Power Vac Services, Hamilton). We are industry leaders in addressing airborne and potential airborne contaminants in all types of industrial, commercial, institutional and residential facilities.