Founded in 1968, Alarm Detection Systems, Inc. is one of the most experienced commercial and home security companies in the nation, providing 24-hour monitoring and security responses for burglary, fire, and other emergency conditions.

We own and operate an award-winning, UL Listed, FM Approved, Five-Diamond certified central monitoring station in Aurora, Illinois.

Alarm Detection Systems is interested in being your partner for the long-term. Our Sales Staff, Engineers, and Technicians are highly-trained to deliver the right solution to you at the very best price.

Assistance is never more than a phone call away. We pride ourselves on our award-winning customer service. Discover the ADS difference on your next security project.

Within your place of residence there are some things that cannot be replaced. Namely: you and your loved ones. The immediate detection and security response of any life or property threat is urgently important.

With a residential security system from ADS you are buying more than just product and services— you are investing in critical protection. Our staff of over 200 qualified employees is there when you need us.

You did your homework and chose the best solution for home security on the market today. Why not pass that experience on to someone else? Alarm Detection Systems appreciates you as a customer and believes in 100% satisfaction. After all, everyone deserves to be safe and secure.