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Ductwork is the building’s air distribution record
Ductwork carries the story of how conditioned air reaches occupied areas. It also carries the practical constraints that make commercial cleaning and maintenance different from a simple equipment service. Ceiling conditions, access panels, branch connections, insulation, dampers, and the relationship between the duct system and the air handler all shape what can be reviewed and how the work should be planned.
A useful request explains what prompted the question. The facility may have visible debris, a post-construction concern, recurring comfort complaints, a maintenance record that is incomplete, or a need to document conditions before another project. The reason matters because a cleaning scope, an inspection scope, and a construction handoff do not ask for the same information.

