01One term, three actual meanings
People say “chimney inspection” as if it were a single fixed thing, but NFPA 211 — the standard governing this across the industry — actually breaks it into three separate levels, each built for a different circumstance.
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Level 1 is the everyday baseline: a visual pass over everything reachable without a camera or ladder, appropriate when a chimney has been in steady use with nothing recent to raise a flag. Level 2 adds a camera pass down the full flue, capturing the liner’s condition in ways a flashlight and mirror never could. Level 3 goes furthest, potentially opening sections of the chimney or an adjoining wall to look directly at a suspected issue, and it is reserved for cases where something concrete already points toward hidden damage.
Mixing these up, or reaching for whichever sounds least involved, is how a buyer ends up with a report their lender rejects, or how a homeowner skips a genuinely warranted Level 3 after real damage simply because a quick Level 1 glance looked fine.


