Thornton Heating & Air of Mayfield, KY is your source for all commercial and residential heating and air needs. We also specialize in sheet metal and custom metal fabrication. Serving Western Kentucky since 1937, Thornton offers a full line of Trane products and the area’s finest service department with a true 24-hour service every day of the year. Thornton is committed to offering reliable, state-of-the-art products with customer service you can count on.