Our Certifications at B & B Heating & Cooling Our team at B & B Heating & Cooling in Florissant aims to have the finest heating and cooling service around. One way we maintain our expertise and continue to expand our knowledge of HVAC products is by earning industry certifications. Learn more about the certifications our experts have received below. North American Technician Excellence (NATE) NATE is North America’s largest non-profit heating, ventilation, air conditioning and refrigeration certification organization. NATE certified technicians provide superior installation and maintenance on your heating and cooling systems. These technicians have proven their knowledge in the HVAC specialty areas including: 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™ Dave Lennox Premier Dealers™ are specially trained and independently evaluated continuously to offer a higher level of customer service. As a Dave Lennox Premier Dealer™, our team in Florissant has partnered with Lennox®, a top name in home comfort, to carry some of the most innovative and energy efficient heating and cooling products in the industry. To keep “Premier” status, B & B Heating & Cooling is involved in an independent Customer Review program that encourages our clients to honestly rate our performance so we can make sure our staff continuously is meeting or exceeding the highest standards for quality service.