Our Certifications at ACS Heating and Air Conditioning We’re passionate about providing the Tucker community with the finest heating and cooling service possible. To do so, we’ve completed rigorous training to receive the industry certifications you see below. Discover more about our certifications here and give us a shout at 770-450-1539 to speak with one of representatives in person. Dave Lennox Premier Dealer™ To receive status as a Dave Lennox Premier Dealer™, ACS Heating and Air Conditioning in Tucker was trained and is routinely independently evaluated to ensure we offer an unmatched level of customer service. We’ve partnered with Lennox®, a top company in home comfort, to carry some of the best HVAC products in the industry. We keep 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 rate the quality of our service, which keeps us accountable for performing high quality work and customer service at all times.