Are you looking for expert chimney cleaning in Bethel Park, PA? Call on Johnston’s Chimney Sweep Inc. Since 1984, our team has worked diligently to keep chimneys in the Pittsburgh area clean. A dirty chimney can quickly become a fire hazard, allowing smoke and flames to get caught in a layer of soot, creosote, dust, and other debris. The more the chimney has, the smaller the pathway becomes to let that smoke out. This can also damage the lining and the structure of the chimney.