Our Certifications at Lycoming Heating Company We’re dedicated to providing the Williamsport community with the best heating and cooling service around. To help us do this, we’ve gone through rigorous training to receive the industry certifications you see below. Discover more about our certifications here and give us a shout at 570-244-2510 to speak directly with our representatives. Dave Lennox Premier Dealer™ To receive status as a Dave Lennox Premier Dealer™, Lycoming Heating Company in Williamsport was trained and is routinely independently evaluated to ensure we provide an unmatched level of customer service. We’ve partnered with Lennox®, a leading name in home comfort, to provide some of the best HVAC products in the industry. We maintain 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 ratings on the quality of our service and keeps us accountable for performing high quality work and customer service at all times.