HELP PROTECT YOUR FAMILY

At Alarm Detection Systems, Inc. we understand that nothing is more important than the safety and protection of your family.

As the largest security company based in Illinois, and one of the largest in the nation, ADS provides both intrusion and fire security systems for thousands of homeowners just like you. 

All systems are monitored locally at our Five-Diamond, UL Listed 24-hour central station.

Contact us today to schedule your complimentary, in-home security evaluation with one of our experienced security professionals. If you act quickly, you'll be eligible for a free re-key of your external doors when you purchase a new security system. ADS is taking care of your electronic and physical security.