Security Systems, Fire Alarms & Access Control
Alarm Detection Systems, Inc. (ADS) is excited to welcome customers of Illini Security Systems, Inc. into one of the largest and most professional alarm companies. We look forward to being of service to you for years to come.
Alarm Detection Systems Protects Thousands of Businesses in Illinois, Southern Wisconsin, and Northwest Indiana.
These are some of the major industries we serve.
Manufacturing & Distribution
If you’re looking for greater security and all-important peace of mind, you may be considering an alarm system installation in Chicago. At Alarm Detection Systems, Inc., we listen to you and determine what concerns you most. Then after evaluating your needs, we suggest the home security package that is the best fit for you.
Schedule Your FREE Evaluation
Considering a Chicago alarm system installation company? Start with us. We don’t sacrifice safety, and neither should you.
For the fastest response to your inquiry. Please use the instant chat function in the bottom right corner of this web page during regular business hours 8:00 a.m. to 5:00 p.m. or call 630.844.6300
Join our Team
Respect, Professionalism, and Integrity.
Employment at Alarm Detection Systems means being a part of a team of leaders in security systems. Join a group of exceptional people who share a common passion for providing the highest level of service to thousands of customers every day.