Four-O-One Security Team, Serving Eastern Ontario Since 1948

Your Local Accredited Alarm Company

We know how important it is to keep your home and family safe. We also know that security is about more than just having good alarm and monitoring systems in place; it’s also about working with a partner you can trust.

For more than 65 years, we’ve been helping homes and businesses in Eastern Ontario find the peace of mind that comes from knowing that the most important things in your life are safe and protected.

Four-O-One Security offers a wide variety of reliable products and services installed and monitored by it’s knowledgeable staff.

Whether you are looking for a home alarm system, a medical emergency alert or a commercial alarm system solution such as security alarms, access control or cameras and surveillance systems, Four-O-One’s skilled team has you covered!

At Four-O-One, we can assist with your ULC listed Fire/Sprinkler system monitoring needs.

Don’t leave your home or business unprotected, call (613) 342-6102 or toll free 1-800-363-7564 today!

Areas We Serve: Napanee to Cornwall as well as Ottawa.

Including: Brockville, Prescott, Kemptville, Greely, Barrhaven, Kingston, Smith Falls and all areas in between!

We’ve recently integrated new technology so you can monitor your security system via a mobile app! See What’s New!


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Four-O-One Security is a CANASA MEMBER





CASC Accredited Security ContractorFour-O-One is a member of Greater Kingston Chamber of Commerce