Even though your fireplace isn’t roaring in the summer, your chimney still needs attention. Toronto’s hot, humid weather can worsen existing chimney problems. The cost of replacing the chimney stack, repairing or cleaning your chimney is well worth the security and safety for your home. Here’s how to spot 9 common issues and address them before next winter.

1. Creosote Buildup

Creosote is a black tar-like substance that forms when you burn wood.Too much creosote is a fire hazard. You don’t want your chimney to become a hazard. In summer, have a professional chimney sweep remove creosote buildup. The cost of cleaning creosite buildup, repairing your chimney, or cost of replacing a chimney stack or flashing guarantees protection for your home this summer. 

2. Damaged Chimney Cap

Your chimney cap keeps out rain, animals, and debris. A broken or missing cap allows water to seep in and damage the chimney. In summer, check the cap for cracks, rust, or loose screws. Replace a damaged cap right away.

3. Cracked Flue Liner

The flue liner is the pipe inside the chimney that vents smoke and gases. Cracks in the liner allow smoke and dangerous carbon monoxide to leak into your home. During a summer inspection, a chimney sweep can check the flue liner for cracks.

4. Water Leaks

Water damage weakens the chimney and can lead to mold growth. Leaks can happen around the flashing (where the chimney meets the roof) or through cracks in the bricks. Look for water stains on the chimney exterior or inside your home. Call a professional to fix leaks as soon as possible.

5. Loose or Missing Mortar

Mortar is the material that holds the chimney bricks together. Loose or missing mortar allows water to seep in and damage the chimney. In summer, check the mortar joints for cracks or crumbling. Call a mason to repair the damaged mortar.

6. Wildlife Guests

Animals like raccoons or birds can build nests in your chimney. This can block the flue and create a fire hazard. In summer, listen for scratching or chirping noises coming from the chimney. Hire a wildlife removal specialist to remove animals and seal entry points safely.

7. Rusted Damper

The damper is a metal plate that controls airflow in the chimney. A rusted damper won’t open or close properly. During a summer inspection, a chimney sweep can check the damper for rust and recommend repairs or replacement.

8. Poor Draft

A good draft is essential for venting smoke and fumes from your fireplace. Signs of a poor draft include smoky fires and trouble starting a fire. A professional can diagnose the cause of a poor draft and recommend solutions.

9. Neglected Flashing

Flashing is the metal sheets that seal the joint between the chimney and the roof. Over time, flashing can become damaged or corroded. In summer, look for signs of rust or leaks around the flashing. Call a roofer to repair or replace damaged flashing.

By addressing these chimney problems in the summer, Toronto homeowners can ensure their chimney is safe and ready for cozy winter fires.