How Often Should You Get Your Chimney Swept?

There’s nothing quite like the warmth of a fire on a chilly evening, but behind that cosy glow is an important responsibility, keeping your chimney clean. Regular chimney sweeping isn’t just about helping your fire burn better, it’s one of the most important steps you can take to prevent dangerous chimney fires and harmful gases from entering your home.

So how often should you get your chimney swept?

The short answer: at least once a year. But the real answer depends on how often you use your fireplace, what type of fuel you burn, and the kind of system you have in place.

Most fire safety organisations, including the National Fire Protection Association, recommend scheduling an annual inspection. Even if you don’t light many fires, your chimney can still collect leaves, animal nests, and other debris over time. For those who use their fireplace or wood stove frequently, that yearly check may turn into a cleaning every few months, especially during peak burning season.

The kind of wood you burn also makes a difference. Hardwoods such as oak or maple burn hotter and cleaner, but they still leave behind creosote, the flammable by-product that builds up inside chimneys. Softer woods, like pine, create more smoke and residue, which means the chimney will need attention sooner. And if the wood isn’t properly seasoned and still holds moisture, it can create a sticky buildup that’s even harder to clean.

The type of system matters too. Wood stoves and fireplace inserts often produce more creosote than an open fireplace, so they typically need sweeping more often. Even gas fireplaces, though they burn much cleaner, should be inspected yearly to make sure the venting is working properly and there are no hidden blockages or cracks.

Sometimes, your chimney will let you know it’s overdue for a cleaning. If you notice an unusual smoky smell, have trouble starting a fire, see soot marks around the fireplace opening, or find that smoke is spilling back into the room, it’s time to call in a professional.

The benefits of keeping your chimney clean go far beyond a crackling fire. Annual sweeping reduces the risk of chimney fires, improves efficiency, protects your indoor air quality, and helps your chimney system last longer.

The bottom line? Treat chimney sweeping like a yearly health check-up for your home. For some households, once a year is enough, while for others who rely heavily on their fireplace, a more frequent schedule is the safest choice. Either way, keeping up with this simple maintenance ensures that your fires remain a source of comfort and not a cause for concern.