The filter has a limited job

An HVAC filter captures part of the material passing through it and helps protect equipment. Replacing it does not remove debris that has already settled inside ducts, at registers, or in other accessible areas.

Use both correctly

Check and replace the filter on the schedule recommended for the equipment and household conditions. Consider duct cleaning when visible debris, renovation dust, odors, or an inspection shows material beyond the filter.

What to photograph

A photo of the current filter, return grille, and mechanical area can help the initial conversation, but it does not replace inspection of the accessible system.

HDC Improvement Inc. serves homes and businesses across Long Island, including Hampton Bays, Southampton, and East Hampton.