Sentry’s security systems provide valuable information about your workplaces- along with remote management functions. We integrate Access Control, Intrusion & Video on one platform. Sentry serves customers throughout Illinois, Wisconsin and Indiana – with the ability to integrate satellite operations nationally. Call us to be connected and stay protected.

Our market-leading knowledge is built on the experience of the professionals and technology created from the combination of the following mergers:

• ABC Security
• Alarms Unlimited
• Central Electronic Security
• Cunningham Security
• Metronet Safe & Sound
• Schaumburg Security Services
• Stand Guard Security
• Star Security

As Chicago’s single-source solution for security needs, Sentry offers the most comprehensive range of services to deliver customized security solutions and ease-of-use convenience. And, as Chicago’s leading independent security company, we have the proprietary resources necessary to provide turnkey execution- confirmed by the consistent high ratings from our customers.

Our Services:

• Commercial Security Systems
• Integrated Security Systems
• Fire Protection
• Industries Security Systems