The short answer most chimney professionals give is: get the chimney inspected at least once a year, and cleaned whenever the inspection says it needs it. That comes from NFPA 211, the national standard for chimneys, fireplaces and vents.

Why yearly?

Chimneys change slowly, so a problem can build for a long time before you notice it. A yearly look catches cracked liners, failing mortar and water damage while they are small. It also tells you whether the soot and creosote inside the flue have reached the point where cleaning is worth doing.

How often you burn changes things

• If you burn wood regularly through the cold months, plan on a yearly inspection and a cleaning when the inspection recommends one.
• If you burn only a few times a season, you may not need a cleaning every year, but you still want the yearly look.
• If you burn gas, there is less soot, but the flue and the appliance still need checking.
• If the fireplace has been unused for years, get it inspected before the first fire.

When to inspect sooner

Book a visit right away after a chimney fire, a storm that may have damaged the chimney, a lightning strike, or if you notice smoke coming into the room, a strong smoky smell, or water stains near the chimney. If you are buying or selling a home with a fireplace, a chimney inspection before closing is worth it.

Not sure which service fits? Read about chimney inspections and chimney cleaning, or call (224) 271-0137.