When temperatures can exceed 80-degrees for a few days in any month of the year, you need an air conditioning contractor you can rely on in Lewisville, TX. Dring Air Conditioning & Heating is the longest continually operating air conditioning company in the area. We opened in 1953 and still use the same core values to serve our customers in Lewisville and the other regions in and around Dallas. Our Carrier Distinguished Dealer Award and Best of Home Advisor listing exemplify our dedication to customer service and satisfaction.