From pioneer to leader in the alarm industry, ADT has been there all the way.

And we will continue to strive to be the most trusted provider of security solutions.

At ADT, we're only as good as every one of us together. Through best-in-class people, technology and service, we provide Canada's homes and businesses with impeccable peace of mind.

ADT History

Over 140 years ago, American
District Telegraph (ADT)
messengers could report a fire in
three minutes flat.

See ADT History
ADT Security Careers

Careers with ADT

At ADT it's the people that keep our customers safe and happy each day, and the leadership's vision that make us the #1 name in Home Security.

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ADT Community Service

ADT in our Communities

We believe that the best way to support a community is to be a part of it. Community Service is one way that ADT stays actively involved in each of the many communities we serve.

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Contact ADT

Contact ADT

We are available 24 hours a day, 7 days a week.