Certifications at Service Plus Mechanical We’re dedicated to providing the Aurora 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. Learn more about our certifications here and give us a shout at 630-809-6319 to speak with one of representatives in person. Dave Lennox Premier Dealer™ To receive status as a Dave Lennox Premier Dealer™, Service Plus Mechanical in Aurora was trained and is routinely independently evaluated to ensure we give an unmatched level of customer service. We’ve partnered with Lennox®, a leading company in home comfort, to offer some of the best heating and cooling products in the industry. We maintain our Dave Lennox Premier Dealer™ status by participating in an independent Customer Review program. The program asks customers to provide honest feedback and share their opinions on our service quality, keeping us accountable for offering high quality work and customer service at all times.