Air Vent Cleaning in Los Angeles, CA

What air vent cleaning actually involves in Los Angeles homes

Waiting has a real cost here. A detached flex boot dumps cooled air into a 140-degree attic all summer, and you pay for it monthly. Rodent droppings in branch runs do not fade on their own. The odor gets worse each time the blower starts. And grey or black tape at old galvanized joints should never be scraped or brushed. That tape may contain asbestos. It gets tested, not disturbed.

The vent itself is rarely the whole story. We pull registers and look at the boot connection first. In 1950s and 60s rigid sheet metal, dust packs at the elbow before the grille. In attic flex, the problem is usually a kink over a joist or a sag between supports. Cleaning a sagging run without strapping it back up buys you a few months.

Fiberglass ductboard plenums are a different call. The surface sheds when agitated. Aggressive brushing makes the air worse, not better. Lined duct with microbial growth from a wet secondary pan is replacement work, not cleaning work.

Check your returns before calling anyone. One hallway grille for a whole converted furnace house means high velocity and dust pulled around the filter edge. Cleaning the vents does not fix that.