by Mark Hansberger on October 20, 2011October 20, 2011 Need A Heating And Cooling Contractor? Go With NATE If you need a heating and cooling contractor but are afraid to trust just anyone with your valuable HVAC system, Hansberger Refrigeration & Electric Company has the solution: go with a company with NATE-certified technicians.Read More Filed Under: Air Conditioning– NATE Certification– Technicians Tagged With: certified technician– heating and air– heating and air conditioning– hvac system– hvac technicians– technician training– Yuma area in Arizona