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Custom Alarm is a locally owned and operated, security-minded company located in Rochester, MN with its own UL listed Monitoring Response Center. Custom Alarm was started in 1968 with only three employees and has grown to over sixty employees, dedicated to taking care of the customer. Specializing in fire alarm systems, intrusion, video surveillance, and access control for both residential and commercial owners. Custom Alarm is the award winning, community involved company that you can trust to ‘have your back’ in all areas of security and provide you with confidence, allowing you to rest assured.