A Level I chimney inspection includes a visual check of the fireplace and chimney without any special equipment or climbing up on the roof. The inspector will check the chimney and accessible flue with a flashlight, look for damage, obstructions, creosote buildup/soot, and tell you if the chimney requires sweeping or maintenance/repair.

A Level II chimney inspection starts with the visual check and ends with the inspection of the interior of the flue with a CCTV camera. This is the only possible way to assess the condition of the system in areas that are not visible from the fireplace opening or the exterior.

A Level III chimney inspection typically involves disassembly of parts of the chimney or fireplace. This is usually done by a chimney/fireplace contractor.

Any chimney/fireplace being used regularly should be checked yearly. They should also be checked after any seismic activity.