Our Certifications at True Heating & Cooling We’re passionate about providing the Denver Metro community with the best heating and cooling service in the area. To ensure our expertise, we’ve gone through rigorous training to receive the industry certifications you see below. Find out more about our certifications here and give us a call at 720-900-1188 to speak directly with our representatives. North American Technician Excellence (NATE) NATE is North America’s largest and most prestigious certification in the heating and cooling industry. NATE certified technicians have demonstrated expertise in the installation, service and maintenance practice of heating and cooling systems and can earn recognition in the following 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 True Heating & Cooling is a member of the Better Business Bureau, meaning we adhere to ethical business practices and disclose trustworthy information with our customers. We have a strong rating and are proud to be part of this organization.