Air Duct Cleaning in Poway, CA

Frequently Asked Questions

Why does so much fine dust keep coming back into my Poway house even after I change filters?

Most of it is getting into the system upstream of the filter. Poway sits on decomposed granite with dry chaparral all around, and the dry season runs long enough that the dust never settles out. In a typical attic-mounted flex duct system, air gets pulled through return platforms, plenum seams, and boot connections that were taped decades ago and have since loosened. That means attic dust bypasses the filter completely. Cleaning the ducts removes the loaded material, but if we find open seams or a leaky return chase, we'll point it out. Otherwise the attic keeps refilling them.

We had smoke and ash in the air during a regional fire. Does that end up in the ductwork?

Yes. Poway is in a wildfire interface area, and ash is fine enough to drift into vented attics and settle on and inside ductwork. Even if your house was never threatened, days of regional smoke leave a deposit. Homeowners usually notice it the first time the AC runs hard after the event and the smell comes back. In flex duct the ash settles along the low points and in the inner liner's corrugations, so it needs mechanical agitation and negative pressure, not just a vent-face wipe. If your attic took heavy ash, we'll also check whether the filter and return were overwhelmed.

What usually goes wrong with duct systems in homes built here in the 70s through 90s?

Three things come up constantly. First, the original flex is often R-4.2 insulation, which was acceptable then and is undersized now, so it sweats or loses capacity in an attic that bakes through a 90-100F afternoon. Second, long flex runs sag between supports over decades and develop low spots that collect dust and restrict airflow. Third, the mastic and tape at boots and plenum takeoffs dries out and lets attic air in. On two-story tract homes we also see upstairs runs that were stretched too far and never properly supported. We document what we find instead of cleaning around it.

How fast can you get out here, and do you do same-day work?

Same-day happens, but it's not something to count on in June through September. That's when Poway AC systems run long hours and we get a lot of calls at once, and a thorough duct cleaning on a multi-return two-story home is a half-day job, not an hour. If you call early in the day we can often fit you in or get you on for the next morning. If your reason for calling is urgent (ash after a fire, a smell you can't locate, someone in the house with breathing trouble), say so when you call, and we'll work to move you up.