Our Certifications at Toptec Heating, Cooling, Plumbing & Electrical We’re committed to providing the Libertyville 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 call at 847-447-0119 to speak with a team member. North American Technician Excellence (NATE) NATE is North America’s largest and most prominent certification in the HVAC industry. NATE certified technicians have shown superior skill in the installation, service and maintenance procedures of heating and cooling products and can receive further recognition in these specific areas of specialty: Air conditioning Air distribution Heat pumps Gas heating Oil heating Hydronics gas Hydronics oil Ground source heat pump loop installer Senior HVAC Efficiency Analyst Dave Lennox Premier Dealer™ To receive status as a Dave Lennox Premier Dealer™, Toptec Heating, Cooling, Plumbing & Electrical in Libertyville 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 offer some of the best heating and cooling equipment 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 share their opinions on our service quality, keeping us accountable for performing high quality work and customer service at all times. Better Business Bureau Toptec Heating, Cooling, Plumbing & Electrical is a member of the Better Business Bureau, meaning we respect ethical business practices and share reliable information with our customers. We have a excellent rating and are proud to be part of this organization.