Our Certifications at Controlled Comfort HVAC Inc We’re passionate about providing the Carpentersville community with the finest heating and cooling service around. To do so, 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 224-699-9229 to speak with a team member. Dave Lennox Premier Dealer™ To receive status as a Dave Lennox Premier Dealer™, Controlled Comfort HVAC Inc in Carpentersville 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 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 share their opinions on our service quality, keeping us accountable for performing high quality work and customer service at all times.