Chimney Inspection
A chimney inspection evaluates the condition of the chimney structure, liner, flue and connections — a different job from a sweep, which physically removes soot and creosote. Chimney sweep & cleaning covers the cleaning side; this page covers what gets inspected, and when.
The inspection standard itself comes from the same place as the annual-cleaning standard: NFPA 211, the National Fire Protection Association's standard for chimneys, fireplaces, vents and solid fuel-burning appliances. In 2000, CSIA and NFPA formalized that standard into three distinct inspection levels, each with its own scope and its own trigger.
CSIA's three inspection levels
"On January 13, 2000, the National Fire Protection Association adopted these levels of inspection into code NFPA 211... NFPA 211 is the standard upon which certified chimney sweeps base their services" (CSIA press release, Industry Standard for Inspections Developed to Aid Homeowners, March 15, 2000). The three levels are defined by scope, not by how serious a problem turns out to be — a Level 1 inspection can still turn something up, and a Level 3 doesn't automatically mean damage has actually been found, only that it needs to be ruled out.
Level 1. CSIA describes this as the inspection "recommended when the chimney and venting system is easily accessible and when the homeowner is planning to maintain its current use... In general, this [is] the level of inspection performed in most homes. In a Level I inspection a certified chimney sweep verifies that the chimney structure is sound and that the chimney is free of obstructions and combustible deposits, such as creosote" (CSIA press release, March 15, 2000). This is the routine, once-a-year check for a chimney that's staying in the same service, with the same appliance and fuel it's always had.
Level 2. CSIA states: "The addition of a new home heating appliance or a change in the type of fuel a homeowner is burning requires a Level II inspection. This inspection level is also required upon the sale or transfer of a property or after an operating malfunction or external event that is likely to have caused damage to the chimney. The scope of a Level II inspection includes that of the Level I inspection plus the inspection of accessible portions of the attics, crawl spaces and basements. It may also include a performance test such as a smoke test or a pressure test and possibly an interior chimney video inspection if recommended by the certified chimney sweep" (CSIA press release, March 15, 2000). In short: a Level 2 is triggered by a change — a new appliance, a new fuel, a sale or transfer, or an event like a chimney fire or storm damage — not by routine annual timing.
Level 3. CSIA states: "When a Level I or Level II inspection suggests a hidden hazard and the evaluation cannot be performed without access to concealed areas, a Level III inspection is recommended. This type of inspection confirms the proper construction and condition of concealed portions of the chimney structure and the flue. Level III inspections are generally necessary when investigating an incident that has caused damage to a chimney or building, or where a hazard is detected and suspected" (CSIA press release, March 15, 2000). A Level 3 can involve removing chimney components — sections of a wall or chase, for example — to get at concealed areas a Level 1 or Level 2 inspection can't reach.
Inspection levels explained walks through the same three levels side by side with more detail on what each one covers.
Buying or selling a home with a chimney
A property changing hands is one of the specific triggers CSIA lists for a Level 2 inspection — it applies regardless of how recently the chimney was last swept or inspected for the current owner's routine use. That makes an inspection a useful step for a buyer or seller to build into the transaction rather than an appliance owner waiting for the next heating season. Buying or selling a home? Get the chimney inspected first covers what that timing looks like in practice and why a new owner benefits from a Level 2 rather than assuming the previous owner's routine annual Level 1 covers them too.
Getting a first inspection as a new homeowner
A new homeowner inheriting a chimney they haven't used before is in the exact situation the Level 2 category was built for: the property has just been transferred, and there's no record of how the previous owner maintained it. Starting with a Level 2 rather than a routine Level 1 makes sense here, since it covers the same ground as a Level 1 plus the accessible portions of attics, crawl spaces and basements the flue passes through — areas a new owner has no prior information about. After that first inspection, a chimney that's staying in the same service typically returns to the routine annual Level 1 check described above, following the same "inspected at least once a year... regardless of how often the appliance is used" standard that also governs routine sweeping and cleaning.
What inspections cost nationally
Cost guides break their figures out by inspection level, and the ranges widen considerably from Level 1 to Level 3. Angi lists a Level 1 inspection at $160 to $300, a Level 2 at $260 to $460, and a Level 3 at $500 to $800 (Angi, "How Much Does a Chimney Sweep Cost? [2026 Data]," by Nick P. Cellucci, updated July 10, 2026). HomeGuide's ranges run wider still: $100 to $250 for a Level 1, $250 to $600 for a Level 2, and $900 to $5,000 for a Level 3 (HomeGuide, "How Much Does a Chimney Sweep Cost? (2026)," by Sarah Noel, dated Feb. 9, 2026). The gap between the two guides' Level 3 figures in particular shows how much a given job's actual scope — how much needs to be opened up to reach a suspected hazard — drives the price. These are national ranges from consumer cost guides, not La Crosse or Onalaska prices and not what any specific business charges.
No cost guide reviewed for this site times a stand-alone inspection separately from a combined sweep-and-inspection visit, so the figures above are the best available national reference point rather than an exact quote for inspection-only work.