About Sentry Security

Alarm Systems Chicago

Sentry Security specializes in the installation, service and monitoring of security and fire alarm systems, video surveillance and access control systems. As your single-source solution for security needs, Sentry offers the most comprehensive range of services to deliver the protection solutions, and ease-of-use convenience, you want. Sentry has grown to become an industry leader; we consistently receive high ratings from our customers. And, as Chicago’s leading independent security company, we have the local resources necessary to give you peace of mind.

Our central station partners provide multiple, redundant physical sites that offer secure UL/FM-certified monitoring facilities to deliver uninterrupted service, regardless of adverse conditions, as well as professionally trained security professionals to monitor your home and business 24 hours a day, 365 days a year.