MARIN COUNTYAir Duct Cleaning
MARIN COUNTYAir Duct Cleaning
Dryer vents in Mill Valley are rarely the short, straight run through an outside wall that the dryer was designed for. On a hillside house, the laundry often sits in the middle of the home or a floor below the street, and the vent climbs twenty or thirty feet through the framing, with several bends on the way out. Every one of those bends holds lint, and the longer the run, the faster it packs in.
The fog doesn't help. Damp air in the canyon makes lint clump and stick to the inside of the duct instead of blowing clear. If loads that used to dry in one cycle now need two, a clogged vent is the usual cause. We clean every foot of the line, from the dryer connection to wherever it exits the house. If the rest of the system needs attention too, our air duct cleaning can happen on the same visit.
A dryer pushes air hard for the first few feet, then loses strength with every foot and every turn. On a long vertical run, lint that would normally blow clear settles at each elbow and works its way back toward the dryer. Roof vents add another problem: the cap at the top can collect lint and debris, and birds like to nest in them. A spotless lint trap with slow-drying clothes is a sign the blockage is somewhere you can't see, often in the run you'd need a ladder to reach.
A lot of Mill Valley houses have had the laundry moved during a remodel, and the vent line was extended or rerouted to follow it. Those extra bends and joints are where lint tends to pile up first. Foil or vinyl accordion-style duct, still common behind older dryers, catches lint in every ridge and isn't allowed under most current codes. If we find it, we'll show you and recommend rigid metal duct, even if that's not why you called.
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Call (415) 704-7069We start at the dryer, disconnect the line and check the exterior or roof termination, so we can see how much is packed in there before we begin. Then we run rotary brushes through the full length of the vent, breaking up packed lint at every bend, while a high-volume vacuum pulls it out. We check the exit flap or cap, clear any nesting, reconnect the dryer and test the airflow at the outside vent before we leave.
The clearest sign is drying time. If a normal load needs two or three cycles, the vent is usually restricted. Other signs are a dryer running hot, a scorched smell, or a laundry room that gets humid while it runs. Step outside while the dryer is going: if the vent flap barely moves or you feel little air, lint has built up somewhere in the line.
Yes. Roof vents are common on Mill Valley hillside houses where the laundry sits in the middle of the home. We clean the line from the dryer end with rotary brushes and a vacuum, then check the cap on the roof for packed lint, debris or nesting. Roof caps clog faster than wall vents, since lint loses speed by the time it climbs that far, so they're worth checking every time.
Damp air makes lint heavier and stickier. Instead of blowing out of the vent as a dry fluff, it clings to the inside of the duct, especially at bends and on any ribbed or flexible sections. In a foggy canyon that happens a lot of the year. Rigid, smooth metal duct and a shorter run with fewer bends both help, and so does a cleaning before the line gets badly packed.