About Us

CSL Climate Control Company has been the trusted heating and cooling provider for the Wheeling community for decades. With over 179 years of combined experience among our certified technicians, we bring unmatched expertise to every job. Our team is dedicated to ensuring that every home and business in the area enjoys reliable, efficient climate control, whether it is a new installation, a routine tune‑up, or emergency repair. From the moment you call, you are treated with the same care that has made us a household name across Chicagoland.
Our commitment to customer satisfaction is the cornerstone of our operation. We offer a 100 percent satisfaction guarantee, rapid response times, and transparent pricing. Every service appointment is backed by a comprehensive warranty and a promise to finish the job right the first time. This philosophy has earned us repeat business and referrals from families and commercial owners alike.
We partner with leading manufacturers such as Lennox, Daikin, and Mitsubishi to supply only the highest quality equipment. Our technicians are NATE certified and continuously trained on the latest installation techniques, maintenance procedures, and energy‑saving strategies. By selecting the right system for your space, we help you reduce energy costs while increasing indoor comfort and air quality.
Beyond technical expertise, we are proud members of the local community. From sponsoring youth sports teams to participating in neighborhood clean‑up events, CSL Climate Control Company is dedicated to improving the quality of life in Wheeling and its surrounding areas. Our reputation for honesty, professionalism, and service excellence keeps customers coming back year after year.