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Alliance Systems, Inc. has proudly been serving the Chicagoland area for over 20 years. Alliance Systems offers years of experience in the installation and servicing of Life Safety Systems such as Fire, Sprinkler, Exit/Emergency and Security systems. Alliance Systems also provides inspection and testing of all your critical safety systems to ensure they are operating at peak efficiency, as well as in compliance with state and local codes. Alliance Systems, Inc. also has the expertise and knowledge to handle your low voltage needs ranging from InterCom, Gate Controller, Sound and PA Systems to Nurse Call, Clock, CCTV, and Card Access devices. Emergency services available 24 / 7, as well as free site surveys and free estimates.