Chicago's Hometown Security Company

Welcome to Sentry Security

Sentry Security, along with our enterprise security division, ABC Security, is Chicago’s hometown provider of security solutions for homeowners, small businesses, and large enterprises. We specialize in the installation, service, and monitoring of security and fire alarm systems, as well as access control and video surveillance.

At Sentry, we provide “security with a human touch.” We have customer service representatives available to answer your phone call. It’s a simple thing, but we believe people like doing business with people, not automated attendants. With Sentry as your security partner, you can feel safe knowing we will be there for you.