Reliable Automation Systems has been established as a certified, authorized Reliable Controls dealer in Billings, Montana. We focus on commercial, industrial, new construction and retrofit existing buildings. Reliable Automation Systems specializes in BACnet (Building Automation Control network), the interoperability communication protocol developed by the American Society of Heating Refrigeration and Air Conditioning Engineers (ASHRAE). Reliable Automation Systems is a licensed, bonded and insured company.