Our Certifications at James Heating & A/C, Inc Our team at James Heating & A/C, Inc in Lexington aims to offer the best heating and cooling service around. One way we maintain our expertise and continue to build knowledge about HVAC products is by earning industry certifications. Discover more about the certifications our technicians have received below. Dave Lennox Premier Dealer™ Dave Lennox Premier Dealers™ are specially trained and independently evaluated on an ongoing basis to offer a higher level of customer service. As a Dave Lennox Premier Dealer™, our team in Lexington has partnered with Lennox®, a top name in home comfort, to offer some of the most innovative and energy efficient heating and cooling products in the industry. To keep “Premier” status, James Heating & A/C, Inc participates 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. Better Business Bureau James Heating & A/C, Inc is a member of the Better Business Bureau. That means we operate by ethical business behaviors and provide trustworthy information to our customers. We have a strong rating and are proud to be part of this organization.