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Chimney Inspection Levels 1, 2 and 3 — Plain English

Buying a house? Selling one? Switching to a wood stove? Each of those triggers a different inspection level, and paying for the wrong one wastes money or misses the problem.

July 8, 2026 · 5 min read · by the Hero Chimney Sweep crew

Chimney Inspection Levels 1, 2 and 3 — Plain English

The three-level system comes from NFPA 211 and every reputable chimney company in the country works from it. Here is what each one is, without the jargon.

Level 1 — the annual checkup

For a system that has not changed and is being used the same way as last year. We examine readily accessible portions: the firebox, damper, visible flue, chimney exterior, crown, cap, and connections to the appliance. We confirm the flue is clear of obstruction and combustible deposits.

You need this when: it is your yearly service and nothing about the system has changed. It comes free with our standard sweep.

Level 2 — the one real estate needs

Everything in Level 1, plus video scanning of the entire flue interior, plus inspection of accessible portions of the attic, crawlspace and basement where the chimney passes through.

Required when:

  • A property is sold or transferred
  • You change fuel types (wood to gas, oil to gas)
  • You add or replace an appliance — a stove, insert, or new furnace
  • After an operating malfunction, a chimney fire, a lightning strike, an earthquake or a serious storm

If you are buying a house in New City, Ridgewood or anywhere else in our area, this is the one. A general home inspector's flashlight-from-the-firebox look is not a Level 2 and should not be treated as one — most home inspectors will say so themselves in their report.

Level 3 — when something is hidden

Used when a Level 1 or 2 inspection suggests a serious hazard that cannot be evaluated without access to concealed areas. It may involve removing a section of the chimney crown, an interior chase wall, or other components.

You need this when: rarely, and only after a Level 2 points to it. Any company that opens with "you need a Level 3" before doing a Level 2 is not doing it right.

What a real report looks like

You should receive a written document with photographs, identifying specific conditions and specific locations. "Chimney needs repair, $8,000" is not a report. "Crown cracked at northeast corner, photo 4; flashing separated at upper step, photo 7; flue tile cracked at approximately 14 feet, video timestamp 2:15" is a report.

What it costs

Level 1 is included with a sweep. A standalone Level 2 real estate inspection generally runs $299 to $499 depending on the number of flues. Level 3 is quoted based on the access work required. See our pricing page.

Timing for a closing

Most Level 2 reports we produce go out the same day. If your closing is in a week, call us — we know the deadline pressure and we schedule around it.

Want us to take a look?

Free estimates across all 97 towns we serve. We will tell you honestly if nothing needs doing.

Still not sure what you are looking at?

Send us a photo or give us a call. Chimney questions are free.

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