Our Certifications Our team at Air Houston Mechanical LLC in Humble works hard to have the most comprehensive heating and cooling service around. The primary way we keep our expertise and continue to expand our knowledge of HVAC products is by earning industry certifications. Discover more about the certifications our professionals 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 Humble 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, Air Houston Mechanical LLC 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.