About DMC Security Services

With a distinguished career in Law Enforcement spanning 21 years, it was only natural that Chester Donati would found the premiere alarm company serving the Chicagoland and Northwest Indiana area.

Being a Police Officer can be rather frustrating at times. When joining the force your goal is to protect people. Too often you arrive at the premises after the burglars or disaster only to fill out reports after the fact.

It was the desire to get to the premises before the burglars that lead to founding of DMC Security Services.

With our sophisticated electronic systems and knowledge of burglary and fire prevention, we can design the right protection to meet the life safety needs of your home or business.

DMC Security Services was incorporated in 1970 with one purpose in mind. To protect our clients.

Since 1991, our U.L. Approved (Underwriters Laboratories) Central Station has been monitoring alarm signals for our clients as well as those of several area alarm companies.




To earn this UL listing, UL Inspectors randomly review all facilities displaying their logo. So you can expect the fastest and most reliable monitoring service available.

Our Central Station Staff is professionally trained and must pass vigorous requirements before they monitor our clients systems.

Every employee at DMC Security is fingerprinted and a thorough background check is performed.

We are insured and licensed with the State of Illinois.

No detail has been overlooked in guaranteeing you the absolute best in Security and Safety.

DMC is a proud member of the following associations:


Illinois State License # 115-000061, 119-000407, 127-000032, 191-000644


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