There’s something timeless about gathering around a fire. But before you spark up that log, make sure your chimney isn’t hiding any surprises. We’ve handled thousands of fireplaces and chimneys, and certain questions always come up. If you’ve been wondering about chimney maintenance, you’re not alone. Here’s what every homeowner should know.
How Often Should a Chimney Be Cleaned?
This one comes up constantly — and for good reason. If you’re burning wood regularly, your chimney needs to be inspected and likely cleaned once a year. That recommendation comes straight from the National Fire Protection Association.
Why so often? Burning wood produces creosote, a sticky, flammable buildup that can start a fire in your chimney if it gets out of control. Burning softwood creates more creosote than hardwood, so if you’re a fan of pine or fir, schedule cleanings more frequently.
Gas fireplaces might look cleaner, but they still need an annual inspection. A blocked vent or damaged flue could cause dangerous gases like carbon monoxide to back into your home.
What Is Creosote and Why Is It a Fire Hazard?
Creosote is a black, tar-like substance that clings to the inside of your chimney when you burn wood. It’s the byproduct of smoke cooling and condensing before it exits the flue.
Even a thin layer can ignite. Chimney fires are often fast and intense — the kind of blaze that can go unnoticed until it’s already caused damage. That’s why regular cleaning is about more than just tidiness. It’s about protecting your house.
Can You Clean a Chimney Yourself?
Technically? Yes. Realistically? Not a great idea.
Those DIY chimney cleaning kits you see online might look tempting, but they don’t replace professional tools or experience. Without the right brushes, vacuums, or inspection gear, it’s easy to miss creosote deep in the flue. Worse, you could damage the liner or fail to spot a cracked brick or missing cap.
Plus, it’s a dirty, high-risk job. One wrong step on a ladder or roof, and you’ve got more than soot to worry about.
What Happens During a Chimney Inspection?
A proper chimney inspection covers more than just sweeping out ash.
We check:
- The flue liner for cracks or deterioration
- The chimney cap (or if you’re missing one entirely)
- The damper, firebox, and masonry for signs of wear
- Any signs of water intrusion or animal nesting
- Proper airflow and venting
If it’s been more than a year since your last inspection, or if you’ve noticed any weird smells or smoke behaviour, book one soon.
Why Does My Chimney Smell Bad?
That sour, musty, or burnt odor? It could be:
- Creosote buildup (has a strong, acrid smell)
- Animals or nesting debris stuck in the flue
- Water damage leading to mold or mildew
Chimneys are warm, dark, and dry — perfect for birds, squirrels, or even raccoons. If one gets trapped and can’t get out, the smell can get intense. Add some summer humidity, and it gets worse.
What Are the Signs of a Chimney Fire?
A chimney fire isn’t always dramatic — but when it is, you’ll notice:
- Loud popping or cracking sounds
- A rumbling or roaring noise (like a freight train)
- Dense smoke or flames coming from the chimney top
- A strong, burning odour
Even a small fire can damage the lining of the flue and make future fires more likely. If you think a fire may have occurred — even if it was brief — schedule an inspection immediately.
How Can I Get More Heat from My Fireplace?
A few quick tips:
- Burn seasoned hardwood (oak, maple, ash) instead of softwood
- Keep the damper closed when the fireplace isn’t in use
- Install a chimney cap to keep cold air and debris out
- Get regular chimney sweeps to keep airflow optimal
- Consider a fireplace insert to increase heating efficiency