Chimney Inspection Levels: What Homeowners Should Ask

01 · Inspection basics

An inspection is a scoped review

A chimney is a connected system: appliance, connector, flue, liner, masonry or factory-built components, and the termination above the roof. A useful inspection records what was examined, what could not be accessed, what the professional observed and what should happen next.

The Chimney Safety Institute of America describes Level 1, Level 2 and Level 3 inspection categories. The right scope depends on whether the system is being used as usual, has changed, or may have hidden damage. Ask the inspecting professional to explain why the proposed level fits your situation.

02 · Inspection basics

Level 1: routine use, no known change

A Level 1 inspection is generally the basic scope for a readily accessible chimney, vent and appliance when it has not changed and its use remains consistent. It includes a visual examination of accessible portions and verification of basic installation and connection conditions.

It cannot reveal concealed areas that are not accessible. Ask which parts of the flue and connector were visible and whether anything limited the examination.

03 · Inspection basics

Level 2: a change or event calls for more review

A Level 2 inspection is commonly considered when a property changes ownership, an appliance or fuel changes, the system is altered, or damage is suspected after an event such as a chimney fire or severe weather. Its scope includes accessible areas and may use video scanning or other methods when needed.

Do not assume an inspection is Level 2 just because a camera was used. Ask the contractor to identify the applicable standard, system and scope in writing.

04 · Inspection basics

Level 3: investigation of a suspected hidden hazard

A Level 3 inspection can involve removal of components or building materials when a serious hidden hazard is suspected and lesser levels cannot evaluate it. It is more invasive and should have a documented reason, defined access plan, approvals and cost discussion before work starts.

05 · Inspection basics

Prepare a short system history

Before the appointment, note the appliance make and model, fuel, changes in use, previous repairs, smoke or odor episodes, leak timing and any storm or fire event. Take photos from safe ground-level positions. Do not climb a roof or operate an appliance that may be unsafe just to collect information.

• List each fireplace, stove, furnace flue and other vent you want included.
• Gather prior reports, repair invoices and appliance manuals if available.
• Describe symptoms with dates and weather conditions.
• Ask whether the contractor will provide dated photos and a written report.

06 · Inspection basics

Questions to ask before agreeing

Ask what standard and inspection level the company proposes, which flues and appliances are included, how inaccessible areas will be recorded, what findings mean, and whether a separate estimate is needed for cleaning or repair. Keep inspection, cleaning and repair scopes distinct so you can compare proposals.