Air Filter Replacement in Houston, TX

Air filter replacement in Houston homes

Most Houston returns sit in a hallway ceiling or a wall grille, feeding an attic air handler. That grille is rarely sealed to the drywall. Attic air gets pulled around the filter frame instead of through it. You can check this yourself. Pull the filter and look at the dust pattern. Clean filter media with a dirty edge line means bypass, not a worn filter.

We size the filter to the frame, not the old one. Many slots were cut for a one-inch filter and later stuffed with something thicker. That bows the media and opens gaps at the corners. On 1960s-80s ductboard plenums, the filter rack is often screwed straight into eroded board, so the lip no longer holds a seal. We note that and tell you.

Blown-in cellulose and fiberglass from the attic is the other common load here. It mats a pleat face in weeks, not months. Roach debris in attic runs does the same thing.

A filter change alone will not fix a sagging flex run or a torn outer jacket letting humid attic air into the inner core. If that is what we find, replacing media is a bandage. We will say so.