Our Certifications at Northglenn Heating & Air Conditioning, Inc. We’re dedicated to providing the Denver community with the best heating and cooling service possible. To help us do this, we’ve completed rigorous training to receive the industry certifications you see below. Learn more about our certifications here and give us a call at 303-452-4146 to speak with a team member. 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 procedures of heating and cooling products 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 Dave Lennox Premier Dealer™ To become a Dave Lennox Premier Dealer™, Northglenn Heating & Air Conditioning, Inc. in Denver was trained and is routinely independently evaluated to ensure we give an unmatched level of customer service. We’ve partnered with Lennox®, a leading name in home comfort, to provide some of the best HVAC products in the industry. We maintain our Dave Lennox Premier Dealer™ status by participating in an independent Customer Review program. The program gives customers an opportunity to provide honest feedback and ratings on the quality of our service and keeps us accountable for doing high quality work and customer service at all times. Better Business Bureau Northglenn Heating & Air Conditioning, Inc. is a member of the Better Business Bureau, meaning we adhere to ethical business practices and share reliable information with our customers. We have a strong rating and are proud to be part of this organization.