The three inspection levels (NFPA 211)
| Level | When it's used | What's checked |
|---|---|---|
| Level 1 | Routine yearly check when nothing about your system or how you use it has changed. | Readily accessible parts of the chimney exterior and interior, the appliance and connection. Confirms the flue is structurally sound and free of blockages and combustible deposits. |
| Level 2 | When you change fuel type or appliance, reline the flue, buy or sell the home, or after a chimney fire, storm or other event that could have caused damage. | Everything in Level 1, plus accessible areas such as attics, crawl spaces and basements, clearance to combustibles, and a video scan of the flue liner. |
| Level 3 | When a Level 1 or 2 inspection suggests a hidden hazard that can't be checked without opening things up. | Concealed parts of the chimney and flue. This may require removing parts of the chimney or building, such as the crown or an interior wall. |
Summary based on NFPA 211 as described by the Chimney Safety Institute of America.
Buying or selling a home in York or Lancaster County?
A sale or transfer of property is one of the listed triggers for a Level 2 inspection. A general home inspection usually doesn't include a camera scan of the flue, so cracks in a liner or hidden damage can be missed. If you're under contract, ask your agent about timing; inspection slots can fill up in fall and winter.
What you should get
- A clear explanation of what was checked and which level was performed.
- Photos or video of any problems found, especially for Level 2.
- A written quote for any recommended repairs, so you can compare or get a second opinion.
Related: chimney sweeping, chimney repair, cost & FAQ.
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