Founded in 1959, Thornton Heating Service, based in Libertyville, IL, has been faithfully serving the North and Northwest Suburban areas of Chicago. The family-owned company, under the continuous ownership of the Starck family since 1974, specializes in the installation, maintenance, and repair of heating, cooling, and air filtration systems. Providing a wide variety of name brand products and emergency services, Thornton Heating Service is committed to delivering efficient, comfortable, and healthy systems to residential and light commercial customers, with a focus on 100% customer satisfaction.