Headquartered in Toronto, Pre-Lock Security Services is a 100% Canadian-owned and operated full service security provider that specializes in residential and commercial high security locks and alarms for burglar & Fire including, ULC listed Burglar & Fire alarms, ULC LISTED Alarm Monitoring, Access Control and Close Circuit Television Surveillance. As an Authorized DSC, Napco, Europlex, Ademco, Paradox, ITI & GE... Read More about Pre-Lock Security Services Inc.