Welcome to Astron Electric Ltd. The Best Electrical Contractor in Toronto   Specializing in rewiring older homes and new custom home wiring Replacement of old knob and tube wiring by fully licensed electricians 100, 200, 400 AMPS Service Upgrades Service Panels Upgrades Stores/Offices Wiring Lighting and Power Installations Fire Alarm Installations All work approved, insured and fully guaranteed   Read more...