The Three Levels of Chimney Inspection — What You Need and Why
NFPA 211 — the national standard for chimneys and fireplaces — defines three levels of chimney inspection. Understanding which level applies to your situation is the first step in protecting your home and investment.
Level I — Annual Visual Inspection
A Level I inspection covers all readily accessible portions of the chimney structure — the firebox, visible flue interior, exterior masonry, crown, and cap. It's appropriate when the chimney has been used without problems in a normal way and with no changes made to the system. AIO Pro includes a free Level I with every chimney sweep ($149–$229).
Level II — HD Camera Inspection (Required for Home Sales)
A Level II inspection is required by NFPA 211 when: a home is being sold or transferred, a new appliance is being installed or connected to the system, or after any event that may have damaged the chimney (storm, earthquake, chimney fire). It includes everything in a Level I plus a full HD video scan of the complete flue interior.
Most home sales in St. Louis County and surrounding municipalities now require a Level II inspection before closing. Our written report with photos is accepted by all local real estate agents, home inspectors, and lenders. Cost: $199–$299.
Level III — Invasive Structural Inspection
A Level III inspection is required when a Level I or II has identified conditions requiring further investigation that can't be assessed without accessing concealed portions of the chimney. This may involve removing components, opening walls, or accessing the attic. Pricing depends on scope — call for details.