In these critical times, you can count on ADS. We continue to provide our services and have implemented policies/procedures in order to safely take care of our customers. Please let us know if you need anything.

Security Systems, Fire Alarms & Access Control


Business Security Systems

ADS is one of the largest business alarm system and home security firms in Chicago. Therefore, we have the products, services, and expertise to provide security and peace of mind 24 hours a day/365 days a year. We are a one-stop provider of:

  • Commercial Security Alarms — From perimeter door protection to interior intrusion sensors, we help keep your business safe from criminals.
  • Security Cameras — ADS can provide temporary location video surveillance during construction. Secondly, we provide IP security cameras with digital video recorders or network video recorders.
  • Business Fire Alarms — We design, install and repair fire alarm equipment and also test and monitor it to ensure it’s working properly.
  • Card Access — We offer various card access business alarm monitoring 365 days a year.

Alarm Detection Systems Protects Thousands of Large and Small Businesses in Illinois, Southern Wisconsin, and Northwest Indiana.

These are some of the major industries we serve.




Financial Institutions


Manufacturing & Distribution

Property Managers

Places of

Property Managers








Home Security

If you’re looking for smart home 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. After evaluating your needs, we suggest the right security solution or home security package that is the best fit for you. From home automation to outdoor cameras, ADS offers a wide selection of security services.

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.

  • Underwriter Laboratories
  • Automatic Fire Association
  • The Monitoring Association
  • Electronic Security Association
  • National Fire Protection Agency
  • NetOne
  • Partnership for the Priority Video Alarm Response
  • PSA Security Network