Dryer Vent Replacement in Martinez, CA

When replacing the duct beats cleaning it again

Towels take two or three cycles. The laundry room goes hot and damp. There's a scorched or musty smell, and in summer the dryer quits mid-load on its thermal limit while the garage bakes. A cleaning buys a few weeks, then it's back. At that point the duct itself is the fault, not the lint.

The usual culprit is white vinyl or foil flex. It crushes flat behind the dryer in tight garage corners and laundry closets. Installers often drive screws through joints, and every screw tip inside the airflow path grows a lint beard. Replacement means smooth-wall rigid metal, joints sealed with foil tape, screws kept out of the duct, and a short piece of listed transition behind the appliance.

Run type drives everything. Short sidewall runs in postwar ranch garages are straightforward. Attic crossings to a gable or roof jack mean working above insulation. Second-floor laundries in the 1980s–2000s two-story homes and townhomes push 20–35 ft vertically to a roof jack whose flapper cakes shut after winter. Condo stacked closets are often shared and need HOA approval first.

Honest answer: if your existing duct is already rigid metal, intact, and reasonably routed, clean it and keep the money. Replacement earns its keep when the material is wrong or the path is crushed.