Dryer Vent Maintenance in San Diego, CA

How often does a dryer vent actually need cleaning in San Diego?

It depends on the run, not the calendar. A short garage sidewall run on a single-story home usually goes 12 to 18 months. Two-story tract homes with long vertical roof-terminated runs need it at 12 months or less. Same for upstairs laundries and large households. Same for any home still on foil flex.

The run type decides the work. Flex foil behind a dryer in a shallow garage alcove gets crushed when the machine is pushed back. That kink traps lint before the duct even leaves the wall. Older 1950s ranch tracts often have under-slab or through-wall runs. That means limited access and no easy pull-apart. Condo closet runs tie into a chase. The only honest check is airflow at the hood.

Roof jacks are their own problem. Lint cements into the elbow under the jack and hardens there. Bird nests and screened hood caps block terminations outright. On stucco sidewall hoods, the flapper is often painted shut from an exterior repaint.

Watch your own cycles. If the marine layer rolls in and the dryer needs two or three cycles, airflow is already restricted. After Santa Ana events, grit and ash collect in the last few feet of duct near the termination.