The level describes scope, not a safety score
Levels 1, 2 and 3 describe progressively broader inspection scopes. They are not a rating of how dangerous a chimney is, and a higher number is not automatically the correct choice for every appointment. Tell the inspector about changes, damage, performance problems and property transfer before asking which scope is appropriate.
Ask the contractor to name the standard used and explain the recommendation in plain language. The inspection should be tied to the actual system and circumstances. Our summary is an orientation for a conversation, not a specification for performing an inspection yourself.
Background for this section: CSIA: chimney inspection levels (historical explainer). Historical industry explanation, published in 2000. Ask the inspecting professional which current standard and local requirements apply.
Level 1 and continued use
A Level 1 inspection generally concerns readily accessible portions of a system continuing under the same conditions. Ask what the company means by accessible and whether any access restrictions will prevent parts of the examination. The report should distinguish an observed condition from a part that was not seen.
Cleaning and inspection are separate tasks, even when booked together. Ask whether the visit includes both and how the contractor decides whether cleaning is needed. Do not assume that a receipt for sweeping also documents all the findings you expected from an inspection.
Level 2 and changed circumstances
A Level 2 inspection adds examination, including internal video scanning, and is associated with circumstances such as property transfer, changes to the system, or events that may have caused damage. Ask your inspector which trigger applies and how the proposed scope addresses it.
For a purchase, arrange access with the owner and obtain the report early enough to ask follow-up questions. Identify every fireplace and connected appliance. A general home inspection and a specialist chimney inspection can have different scopes, so read both agreements rather than relying on the appointment names.
Level 3 and concealed conditions
A Level 3 investigation can involve opening concealed areas when a suspected hazard cannot be evaluated through the lesser inspection scopes. Before any opening is made, ask which location is involved, why it is necessary, and what decision the investigation is intended to support.
Document who protects the interior, who restores the opening, and whether restoration is included in the price. Destructive access should be a specific written scope, not an unexpected consequence of a routine appointment. Ask how the findings will change the proposed next step.
Read the report as a decision document
For each finding, look for the component, location, observation, evidence and recommendation. A photo should be connected to the correct flue or appliance. If the report contains abbreviations, ask the inspector to translate them before you compare repair estimates.
Keep access limitations visible. A report cannot establish the condition of areas outside its scope. Ask whether further investigation is recommended, whether an appliance should remain unused pending work, and what documentation will show that the agreed repair was completed.
Sources and scope
Hiring questions and worksheets are original editorial guidance. For technical background, consult the sources below, your appliance manual and a qualified on-site professional. This article has not been represented as a professional inspection or expert-reviewed report.
- CSIA: chimney inspection levels (historical explainer) — Historical industry explanation, published in 2000. Ask the inspecting professional which current standard and local requirements apply.
Source links checked September 24, 2026. This date records the reference check, not expert approval or a change to the source’s publication date.