Come the first real cold snap, a lot of us start using our fireplaces regularly. So how often should they be cleaned? With normal use, at least once a year is a good rule. Many people do this just after winter so that the chimney is safe and ready to use the next time it’s needed. With heavy use or burning wet, sappy wood, a fireplace and chimney should be cleaned much more frequently. Possibly once a month.

How to tell without guessing

Either way simply looking up into your chimney flue will give you a clue. If your flue looks like the one above, it’s time for a cleaning. What you’re looking at there is creosote, the dark tarry buildup that comes off burning wood. A light dusting of soot is normal. A thick, shiny, crusted layer coating the flue is not, because that’s the stuff that catches fire. An expert chimney sweep should be consulted for your unique situation to make sure your chimney is clean and safe to use at all times.

Burning wet or unseasoned wood is what makes it build up fastest, so if you’ve been burning whatever was in the yard, assume you’re on the more-often end of that range.

What we look at on an inspection

Fireplaces and chimneys are part of every base inspection. We check the flue, damper, firebox, hearth extension, and any gas log equipment for visible defects. That is not the same thing as a chimney sweep’s cleaning and evaluation though, and it isn’t meant to be. If a home you’re buying has a fireplace that’s clearly been used a lot, having a sweep out before you light it the first time is cheap insurance. Everything covered in a base inspection is listed on our what’s inspected page.

At Panther Inspections we are more than just inspectors, we have an extensive network of high-quality professionals we trust to get the job done right. If you’re looking for a chimney sweep, give us a call. We have a contact for you.

Updated July 2026