Inspection Levels

Level 1 (annual), Level 2 (sale or event), and Level 3 (concealed damage).

What is Inspection Levels?

The three formal tiers of chimney inspection defined by NFPA 211. Level 1 covers readily accessible areas and is recommended every year. Level 2 adds a video scope and is required after a property transfer, a system change, or any hazardous event (chimney fire, lightning, earthquake). Level 3 is the invasive tier, opening walls or the chase, used when Level 2 leaves concealed damage suspected.

Related terms:NFPA 211Video Scope

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Other terms in the glossary

Creosote

Tar-like residue from incomplete wood combustion. Highly flammable.

NFPA 211

The US standard covering how chimney, fireplace, and vent systems are installed.

Flue

The inner passage that carries combustion gases up and out of the house.

Liner

The inner channel running through the flue, made of clay tile, stainless steel, or cast-in-place.

Crown

The concrete cap at the very top of a masonry chimney.

Chimney Cap

The metal cover-and-mesh assembly on top of the flue.

10+

Years

NFPA 211

Standard

CSIA

Certified

< 2hr

Response

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Emergency

24/7 Response

Active leak, animal in flue, post-fire damage, or smoke event? Real humans on the line 7 AM to 12 AM every day — replies in under 2 minutes. Tech dispatch within 2 hours during business hours, subject to crew availability after-hours.

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