Dryer Vent Maintenance in Berkeley, CA

How often does a dryer vent actually need service in Berkeley?

Annually for most households here. Every six to nine months if the run is long, goes to a roof cap, or serves a shared-wall unit. Pet bedding and heavy family laundry pull that interval shorter. The duct layout matters more than the brand of dryer. A short straight punch through a garage wall in San Leandro stays clear far longer than forty feet of flex sagging between basement joists in a pre-1940 Berkeley house.

Fog-season air is the local complication. Damp air lengthens cycles. Moisture condenses in the cool sections of duct, usually the stretch running under the floor. Wet lint cakes instead of blowing through. It packs at every 90, and old flexible foil or white vinyl holds it in the sags. Those sags are lint traps by accident.

Maintenance means more than running a brush. The backdraft flapper gets checked for lint jamming it open or shut. The crushed section behind the dryer gets pulled and straightened. Screened or louvered covers on older houses get inspected; they are common and they pack solid.

Gas dryers in basements and garages raise a carbon monoxide concern when the duct is restricted. That one is not optional.