Electrical Contractor in Hamilton. ESA - licensed and insured electricians serving Hamilton, Burlington, Oakville and surrounding areas. Electrical wiring and rewiring, service upgrades, panel changes, interior, exterior, pot light design, installation, surge protection, custom home wiring, new construction electrcians, renovations, basements, additions, businesses, residential, commercial, industrial, hot tub wiring, pool wiring, aluminum wiring, repairs, under cabinet lighting, landscape light