Diversified Thermal Services, Inc. was founded in 1990 by President and CEO Craig Steinmetz, specializing in the service and construction sectors of the Commercial and Industrial HVAC/R industry. Since 1990, we have extended our reach and expertise by creating and fostering a Building Automation department, making Diversified Thermal a unique all-encompassing mechanical contractor that can provide a turnkey solution for any Commercial HVAC or Industrial Refrigeration project.