Serving Northern Illinois Since 1984

Our Mission

To serve our community by providing the highest quality security solutions for its homes and businesses, by building trusting relationships with our clients, and by maintaining integrity in all that we do.

The Illini Security Difference

We partner with you to develop custom-designed security that suits your unique security needs, lifestyle, and budget. Our technicians are highly trained and bonded and will work with you to help answer your technical questions and explain the use of your system.


Service Area

Illini Security Northern Illinois

About the Owner: Gene R. Deisz

  • DeKalb Rotary Club
    • President (1989-1990, 2002-2004)
    • Board of Directors
    • Paul Harris Fellow
  • Ben Gordon Center
    • Past Board member
  • Voluntary Action Center
    • Past Board member
    • Meals on Wheels volunteer
  • Kishwaukee Community Hospital (KCH 100)
    • Team captain
    • Chair
    • Chair emeritus
  • DeKalb County Shrine Club
  • DeKalb Chamber of Commerce
  • Sycamore Chamber of Commerce
  • St. Charles Chamber of Commerce