Certifications at Temptrol Heating & Cooling Inc. We’re dedicated to providing the Antioch community with the best heating and cooling service in the area. To ensure our expertise, we’ve participated in rigorous training to receive the industry certifications you see below. Learn more about our certifications here and give us a buzz at 847-838-2156 to speak directly with our representatives. North American Technician Excellence (NATE) NATE is North America’s largest and most prestigious certification in the HVAC industry. NATE certified technicians have shown superior skill in the installation, service and maintenance procedures of heating and cooling products and can earn recognition in these specific areas of specialty: Air conditioning Air distribution Heat pumps Gas heating Oil heating Hydronics gas Hydronics oil Ground source heat pump loop installer Senior HVAC Efficiency Analyst Better Business Bureau Temptrol Heating & Cooling Inc. is a member of the Better Business Bureau. That means we abide by ethical business behaviors and share trustworthy information with our customers. We have a good rating and are proud to be part of this organization.