Our Certifications Our team at Sig Cox Heating and Air Conditioning in Augusta works hard to provide the most comprehensive heating and cooling service around. One way we sustain our expertise and continue to expand our knowledge of HVAC products is by earning industry certifications. Learn more about the certifications our technicians 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 regularly to offer a higher level of customer service. As a Dave Lennox Premier Dealer™, our team in Augusta has partnered with Lennox®, a top name in home comfort, to provide some of the most innovative and energy efficient heating and cooling products in the industry. To keep “Premier” status, Sig Cox Heating and Air Conditioning takes part 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.