Welcome to Gem City Armored Security, Inc.

Welcome to the home page of Gem City Armored Security, Inc. GCAS was established in 1998 to serve the Quincy , Illinois - Hannibal , Missouri area. Since then we have grown to serve the surrounding areas, and have many loyal customers. We offer a variety of professional armored car and related services. Please browse our site to see what we do and give us a call for more information on what we offer our customers.