Business & Commercial Security

Commercial Security Systems Chicago

We protect what matters most for Chicagoland businesses, inside and outside

Sentry Security is your single-source solution for all facility security needs. We offer the largest continuum of services to keep your business in business. Sentry Security is committed to ensuring the security of Chicago’s businesses: big and small. Sentry’s Price Guaranty commits to you that we will get the job done right- on time and on budget. And, as Chicago’s leading independent alarm company, we have all the local resources necessary to make we deliver on Sentry’s Price Guaranty.