Before and after
need a defined view.

A concern should start with an assessment of observed conditions. Visible debris, moisture, pests or another specific issue can justify a closer look, but a cleaning schedule alone does not establish that work is needed. Ask what was found and which parts of the system the proposal addresses.

Ask which supply and return sections, registers and accessible equipment are included, how access is obtained and how loosened debris is collected. Clarify exclusions, access limitations and any separate work on the air handler. A quote for vents alone may describe a different scope from a whole-system proposal.

An odor description helps prepare the visit but does not establish its source. Explain where and when you notice it and whether it changes with system operation. Ask how the assessment will distinguish duct conditions from other possible sources before agreeing to cleaning or treatment.

Request photographs or documented observations of the relevant accessible areas and a clear explanation of the proposed scope. Ask which findings were directly observed and which areas could not be accessed. Generic sample images are not evidence of your own system’s condition.

Identify the air-handler location, note the number of systems if known and explain any access restrictions. Keep access to registers and equipment clear. Gather previous work records and describe the particular concern so the visit can focus on useful observations.