How it works
Chimney inspection levels, explained
Chimney inspections come in three levels. The right one depends on what you are checking for. A routine yearly check is a Level 1; a home sale or a system change calls for a Level 2 with a camera; a suspected hidden problem may need a Level 3.
The short answer
Level 1 is the basic yearly visual check. Level 2 adds a camera scan and is the standard before a home sale or after a change to the system. Level 3 opens up part of the structure to reach a concealed hazard and is not routine.
The three levels side by side
| Level | What it covers | When it applies |
|---|---|---|
| Level 1 | Visual check of readily accessible parts and the appliance connection | Yearly, same conditions, no known issues |
| Level 2 | Level 1 plus a camera scan of the flue and accessible attic, crawl space, and roof areas | Home sale, system or fuel change, after a fire or weather event |
| Level 3 | Level 1 and 2 plus opening concealed areas (walls, crown) where needed | When a hidden hazard is suspected |
Level 1: the yearly check
A Level 1 inspection is what most homeowners need most years. The technician checks the readily accessible portions of the chimney exterior and interior and the connected appliance, confirming the structure is sound and clear of obstructions. It is appropriate when nothing about the system has changed and there are no known problems, and it is often bundled with a routine sweep. See our chimney sweep cost guide for how that is priced.
Level 2: before a sale or a change
A Level 2 inspection is the right call in three situations: you are buying or selling the home, you have changed the system (a new appliance, a different fuel, or a relining), or something happened that could have caused damage, such as a chimney fire or a serious storm. It includes everything in a Level 1 plus a camera scan of the flue interior and a look at accessible areas like the attic, crawl space, and roof. The camera is the part that sees what a visual check cannot.
Level 3: when something is hidden
A Level 3 inspection is reserved for when a Level 1 or 2 points to a hazard that cannot be seen without going further. It can involve removing a section of wall, a ceiling area, or part of the crown to reach a concealed problem. Because it can mean minor demolition, it is quoted per job and is not part of a routine visit.
How to pick the right one
- Nothing changed, used as usual? Level 1 with your yearly sweep.
- Buying or selling, or you changed the appliance or fuel? Level 2 with a camera.
- Had a chimney fire or major weather event? Level 2, escalating to Level 3 if it finds something hidden.
Find a company for the level you need
On ChimScout, listings note the inspection levels a company offers where we could confirm it. Open your city and filter by chimney inspection:
Notes
The three-level framework is the industry standard for chimney inspections in the US. This guide is general information; the right level for your situation is a judgment for a qualified technician. Confirm scope and price with the company before booking.