Has airflow changed around your home?
If a furnace or air conditioner seems to move less air, inspect accessible filters and note any unusual dust around the equipment before arranging a cleaning. Blower assemblies and evaporator coils are distinct components, so ask which are included and whether the coil will be washed in place. Photograph the equipment label and cabinet layout if accessible. Equipment age, coil access and visible wear can change the scope; cleaning should not be confused with diagnosing or repairing a mechanical fault.
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