The Midwest’s Largest, Most Respected Fireplace and Chimney Company Fireplace & Chimney Authority has over 100 years of combined industry experience. We are the Midwest’s largest full-service chimney company from building, restoration, installation of gas or wood-burning appliances and chimney cleaning. One of the area's foremost authority on BBQ and Grills. Full selection of Gas, Wood and Pellet grills on display.