Make the switch today! Midwest Customers call 630.844.6300. Colorado Customers call 800.446.7519

Safe Systems is now Alarm Detection Systems.
Different name, same excellent service.


Security Systems, Fire Alarms & Access Control


Business Security Systems

ADS is one of the largest business alarm system and home security firms in the country. 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 Colorado, Illinois, Northwest Indiana, and Southern Wisconsin.

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. 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 an 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 Contact Us

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

Protecting your home and the things that are precious to you is what we do.

Make the switch to alarm detection systems today.

Passion to Protect From Day One

ADS has been protecting lives and property for over five decades. We understand that people make the difference.

Need Assistance? We're here to help, call an ADS representative today!

Make the switch to alarm detection systems today. Switch/Activate

Schedule your FREE Evaluation

We're the leading alarm system provider in the Denver area. Let's talk about making your home or business safer.

Always There When You Need Us

We're the leading alarm system provider in the Midwest. Let's talk about making your home or business safer.

Choose Your Account Location

  • Midwest
  • Colorado