WELCOME TO
Pre-Lock Security Services Inc. 

Welcome to Pre-Lock® Security Services, one of Toronto's most trusted local locksmith service provider & Alarm.com authorized smart home security service provider & reliable ULC alarm monitoring security company in The Greater Toronto Area.  

We are 100% Canadian owned & operated and are a 24 Hour Toronto Locksmith Medeco & Mul-T-Lock high security service provider & electronic security alarm monitoring company.

Established in 1978 as then the North York alarm service provider, we celebrate over 42 years serving the City Of  Toronto and surrounding areas. We specialize in locksmith high security hardware and wireless alarm monitoring services with no phone line requried & hardwire security powered by Alarm.com with solutions for home and business needs.  

Lets Get Started Today at (416) 773-5625