Automation Systems, Tech Mechanical, serves the Greater Detroit commercial and industrial HVAC/R industry with HVAC, climate controls, industrial ventilation and paint spray booth systems. Since 1983. Design, Build and Installation of HVAC Systems for Commercial and Industrial Sectors; Products Include Refrigeration and Building Automation Systems, Paint Booth and Finishing Systems, Ventilation and Exhaust Systems, Environmental Control Systems, Process Piping and Geothermal Systems ...