24-hours, every day, everyone of us at CJS Heating and air works to earn your trust in Columbus, Bellefontaine, Marion, Mount Vernon, and Zanesville. CJS Techs are clean, screened, trained and timely, providing AC system maintenance, air conditioning tune-ups, air conditioning repairs, and system replacement. We also make it easy with available financing. You call. We come. It’s fixed. Guaranteed. It’s how we earn five-star local reviews. We’d like to earn our next one from you.