Level 1, 2 and 3 chimney inspections: what each one covers
Updated · KeystoneProGuide editorial team
What are the three levels of chimney inspection?
They are three fixed scopes of work, each deeper than the last. Level 1 is the routine look at the parts that can be reached easily. Level 2 adds the attic, crawl space and basement and often a camera in the flue. Level 3 opens up walls or the chimney itself to reach what is hidden.
| Level | When it applies | What it covers |
|---|---|---|
| 1 | Routine visit, nothing has changed | Readily accessible parts of the chimney and flue |
| 2 | New appliance or fuel, a sale, or a damaging event | Level 1 plus accessible attics, crawl spaces and basements |
| 3 | A hidden hazard is suspected | Concealed parts, reached by removing building materials |
The levels come from NFPA 211, the National Fire Protection Association's standard for chimneys, fireplaces and vents. The text of the standard sits behind the association's sign-in and was not read for this guide. What follows is the account given by the trade's certification body, CSIA, in the release it issued when the levels were adopted, checked against how the cost surveys describe them.
Why were the levels introduced?
To make an inspection mean the same thing from one sweep to the next. CSIA says the association adopted the three levels into the standard on January 13, 2000, and that until then the scope of an inspection had been left to the sweep's professional discretion. The practical gain for a homeowner is a name you can put in a quote and compare.
What does a Level 1 inspection cover?
The chimney as you use it now. In CSIA's summary, Level I is recommended when the chimney and venting system are easily accessible and you plan to go on using them as before. It is, in general, the level performed in most homes. The sweep verifies that the structure is sound and that the flue is free of obstructions and of combustible deposits such as creosote.
It is the inspection that belongs with an ordinary sweep. CSIA's advice to homeowners is to ask for a Level 1 inspection and a sweeping by name.
When do you need a Level 2 inspection?
When something has changed. CSIA lists the triggers:
- adding a heating appliance, such as a stove or an insert;
- changing the type of fuel;
- the sale or transfer of the property;
- an operating malfunction, or an outside event, likely to have damaged the chimney.
The scope is everything in Level 1 plus the accessible portions of attics, crawl spaces and basements. CSIA adds that it may include a performance test, such as a smoke test or a pressure test, and possibly an interior video inspection if the sweep recommends one. The cost sites describe the camera as standard: HomeGuide calls Level 2 a full video-recorded inspection of the flue, roof and crawl space or basement.
A chimney fire is one such event. CSIA describes what follows it: the flue is swept so every surface can be seen, then a small camera on the sweep's rods is rotated inside it to check tiles for cracks and mortar joints for failure.
The sale trigger has become local law in at least one place. Middletown Township, in Bucks County, says a level 2 chimney inspection is required for all homes being sold there, done by a certified chimney contractor, with a copy sent to the township. The Bucks County guide has more on that rule.
What is a Level 3 inspection?
The one that takes things apart. CSIA says Level III is recommended when a Level I or II inspection suggests a hidden hazard that cannot be evaluated without access to concealed areas. It confirms the construction and condition of the hidden parts of the chimney and flue, and is generally needed when an incident that damaged a chimney or building is being investigated.
HomeGuide describes it as removing chimney caps, bricks or drywall to find the source of damage. Fixr calls it rare and says it can take more than a day. Because it destroys finishes, it should come with a written reason: what the earlier inspection found, and why a camera cannot answer the question.
What do the three levels cost?
The surveys agree on the order and little else.
- Level 1: $160 to $300 from Angi, $100 to $250 from HomeGuide, $85 to $450 as a standalone service from Forbes Home.
- Level 2: $260 to $460 from Angi, $250 to $600 from HomeGuide, $145 to $750 from Forbes Home.
- Level 3: $500 to $800 from Angi, $900 to $5,000 from HomeGuide, $750 to $5,000 from Forbes Home.
The spread at Level 3 reflects what is being counted. HomeGuide says its figure includes standard repair work, and Forbes Home says the inspection may involve opening walls or taking apart sections of the chimney. All of these are national figures. The cost guide puts them beside the price of the sweep itself.
Who decides which level you get?
The standard does, through its triggers, and the sweep applies it. CSIA says that once the level is determined the sweep explains the scope of work to the homeowner. That gives you a simple test for any quote above Level 1: ask which trigger applies. A new stove, a sale or a chimney fire is an answer. A general preference for thoroughness is not one of the listed reasons.
Is a home inspection the same as a chimney inspection?
No. Pennsylvania's home inspection law defines a home inspection as a noninvasive visual examination of a dwelling's systems and components. The standard of the American Society of Home Inspectors, the inspectors' trade body, has its members inspect chimneys and vent systems but says they are not required to inspect the interiors of flues that are not readily accessible, to judge draft, or to move a fireplace insert or stove. A buyer's home inspection can flag a chimney. It does not replace a Level 2.
What happens during a chimney sweep visit follows a routine Level 1 visit from start to finish. Businesses that carry out all three levels are on the chimney sweeps directory page.
Sources
- Industry Standard for Inspections Developed to Aid Homeowners, Chimney Safety Institute of America (CSIA)
- Homeowner Resources, Chimney Safety Institute of America (CSIA)
- What You Need to Know After a Chimney Fire, Chimney Safety Institute of America (CSIA)
- NFPA 211: Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances, National Fire Protection Association (NFPA)
- How Much Does a Chimney Sweep Cost? [2026 Data], Angi
- How much does a chimney sweep cost?, HomeGuide
- How Much Does A Chimney Cleaning Cost?, Forbes Home
- How much does it cost to have a chimney cleaned?, Fixr
- FAQs: Fire & Emergency Services, Middletown Township, Bucks County
- Standard of Practice, American Society of Home Inspectors (ASHI)
- 68 Pa.C.S. Chapter 75: Home Inspections, Pennsylvania General Assembly