Security Systems & Services in Saint Charles, IL

Comprehensive list of Saint Charles, Illinois based companies offering installation, maintenance and repair of home and business security systems, CCTV & burglar alarms, guard and video surveillance services.

Business Listings

We're a leading electronic security integration firm situated in the Chicago metro area. Our firm specializes in commercial, corporate, and industrial security solutions. SSI supports customers throughout the Midwest including Illinois, Indiana, and Wisconsin. We look ahead to working with you and meeting your security requirements.


At System Sensor, innovation is more than an perfect; innovation is our way of life. Every day we design fire, carbon monoxide, heat detection, and notification devices that use the most innovative technologies in the most inventive ways. We create products for our clients that are convenient to install, efficient to operate and provide the highest standards of reliability.


Protect your Home or Business with innovative security camera solutions you will actually use. Our full line of analog, HD IP and HD-SDI (HD over Coax) cameras will change the way you protect your family and business.

  • I was really impressed with the selection and quality of security cameras on display.


Imperial Surveillance. was set up in March of 2005 in Elgin, Illinois. Since the firm began we currently have focused extensive resources on the development of our products. Imperial Surveillance., is speedily becoming one of the leaders of the Security and Surveillance Industry. We are committed to each Customer with Patience and Personal Attention.


For over forty years, Alarm Detection Systems. has been one of the finest commercial and home security firms in the nation, delivering 24hr monitoring and security responses for burglary, fire, and other emergency conditions. As the biggest security firm located in Illinois, ADS installs, repairs, and monitors the finest security products in the alarm industry.


We're the most trusted, recognized safety brand in America, protecting what matters most. From kids and family to your home, we design and create safety products that preserve and protect. Trust First Alert for protection from the dangers of smoke, fire and carbon monoxide.


ABOUT YPS We are a licensed and bonded complete service Private Detective Agency, owned and run by Steven Yahnke and the Yahnke family, with special emphasis on client service. We incorporated in 2004 and have been building a successful agency ever since, we still serve our very 1st customer.


Sentry 360 has two families of products: FullSight is our 360-degree immersive camera series varying from discreet mounting options to extreme temperature vandal dome models. The InSight series has vandal dome, miniature dome and box style models ranging in resolution from 1280 x 960 1.2 megapixel CCD or CMOS to 4000 x 2656 11 megapixel.