What Do Chimney Inspectors Look For? A Complete Guide
Exterior Inspection
Cap and crown condition, brick and mortar integrity, flashing seal, lean or shift in the structure, water damage signs, vegetation overgrowth, and chimney height/clearance from nearby objects.
Flue Interior
Creosote level (using NFPA 211's 1/8-inch standard), flue liner condition, cracks or gaps, blockages from debris or animal nests, and proper sizing relative to the appliance.
Smoke Chamber and Damper
Smoke shelf cleanliness, smoke chamber parging, damper operation and seal, and any signs of overheating or warping.
Firebox
Firebrick condition, refractory mortar joints, evidence of cracks or burnouts, and clearance from combustible materials.
Hearth and Surroundings
Hearth extension dimensions, mantel clearances, wall combustibles, and floor protection, all checked against current building code.
A complete inspection covers more than 25 individual checkpoints, from the cap down to the foundation.