Question 1

My house is a small postwar single-story with ducts that were added later. Does that change how you clean?

Accepted Answer

Yes. Most forced-air systems here were retrofitted into homes originally heated by wall or floor furnaces, so the duct runs are short, often undersized, and usually feed off a single central return. That layout moves air fast through a small amount of ductwork, which keeps dust in motion instead of letting it settle evenly. In practice we spend less time on long trunk lines and more on the return, the plenum, and the boots, since that's where the loading concentrates in a sub-1,200 square foot home. We also check access carefully, since slab and shallow raised foundations limit where equipment can reach.

Question 2

Why do my filters get dirty so fast compared to what friends elsewhere describe?

Accepted Answer

Two things stack up in East Palo Alto. First, you're near the Ravenswood marsh and Baylands, so marine humidity, fine mudflat silt and salt are part of the ambient air year-round. Second, Highway 101 frontage puts road grit and brake dust into the neighborhood air. Combine that with a single-return system pulling hard through one filter, and the filter becomes the only real line of defense. Duct cleaning won't stop the source, but clearing the return path and boots means less of what your filter misses keeps recirculating.

Question 3

We converted the garage into a living space and added a vent. Should the ducts be looked at?

Accepted Answer

That's one of the most common reasons we get called out here. ADU and garage-conversion work often adds spliced or extended branch runs onto a system that was already short on capacity. What we find is flex duct that's kinked, sagging, or taped onto an existing trunk without a proper takeoff, and sometimes a disconnected branch dumping conditioned air into a crawlspace or attic. Cleaning handles the debris, but we'll tell you plainly if the real issue is a connection problem rather than dirt.

Question 4

How soon can someone actually get out here?

Accepted Answer

East Palo Alto is compact and close to the south county line, so travel time is short and we can usually schedule within a few days. Summer is the busier stretch, since this side of the county runs warmer than the north county and people notice weak or dusty airflow once cooling demand kicks in. If you're calling in a heat stretch, book earlier in the week if you can.

Question 5

What makes one quote higher than another in this neighborhood?

Accepted Answer

Square footage works in your favor here, since most of these houses are small and the duct systems are short. What moves the number is access and condition. Shallow raised foundations and tight crawlspaces slow the work, slab homes with ducts routed through the attic take a different approach, and any added branch runs from an ADU or converted garage mean more to inspect and clean. Heavy silt and salt buildup near the Baylands can also mean the return and plenum need more attention than a straightforward job. We walk the system and explain what's driving the figure before we commit you to anything.

Air Duct Cleaning in East Palo Alto, CA