Chimney anatomy

01 · Chimney cap

The chimney cap sits at the top of your chimney, preventing rain, debris, and animals from entering.

• Rust or corrosion
• Clogged mesh
• Detachment or damage from wind

02 · Crown

The crown is a protective slab that covers the top of the chimney, designed to shed water and prevent it from seeping down.

• Cracking
• Water pooling
• Deterioration from weather

03 · Flashing

Flashing is a metal barrier that seals the space between your chimney and roof to prevent leaks.

• Corrosion
• Improper installation
• Weather damage

04 · Brick and mortar

The masonry consists of the bricks and mortar that make up the structure of the chimney.

• Cracks in mortar
• Spalling bricks
• Water damage

05 · Flue liner

The flue liner protects the chimney walls and guides smoke out safely.

• Cracking
• Blockages
• Improper sizing

06 · Smoke chamber

The smoke chamber is located above the firebox and helps direct smoke smoothly into the flue.

• Soot buildup
• Improper slope
• Cracked walls

07 · Damper

The damper controls air flow and seals the chimney when not in use to prevent heat loss.

• Jamming
• Rust
• Misalignment

08 · Firebox

The firebox is where the fire burns, and it's built to withstand high temperatures.

• Cracked bricks
• Worn mortar joints
• Smoke backdraft