Montana HVAC Pros
A silver hooded exhaust vent cap mounted on gray vinyl lap siding on the exterior wall of a house.

Dryer Vent Cleaning in Billings, MT

Tell us about your home, and a licensed contractor who covers Yellowstone County will get in touch.

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It takes about a minute.

Step 1 of 3: Equipment
A white hooded exhaust vent with louvers mounted on a gray lap-sided exterior house wall.

Cold vents catch more lint than warm ones

Your dryer pushes out warm, damp air every load. Once that air hits the cold vent run, it cools fast, and the moisture in it settles on the vent walls. Lint sticks to damp metal instead of blowing straight through to the outside.

With winter nights here averaging 16°F from December through February, that vent stays cold most of the day. Layer after layer of lint builds up along the walls until the vent is narrower than it should be, and the dryer has to push harder to get air out at all.

16°F
the average winter night, and cold vents catch damp lint
9 months
September through May, the vent stays cold
Isometric line illustration of a front-loading dryer beside a wall, with a flexible duct running from its back through a wall opening to an exterior vent hood.
Your vent runs coldest from November through March.

NOAA nClimDiv, 1991–2020 normals

How often should a dryer vent be cleaned?
Once a year for most households. If you run large loads often, or you have a long vent run to the outside, have it checked more often than that. Lint builds up along the inside of the duct even when the lint trap looks clean, and that buildup is what causes the problems.
Can I clean my dryer vent myself?
You can clean the first few feet near the dryer yourself, but that only reaches part of the vent. The rest of the run, especially where it bends or passes through a wall, needs a brush and vacuum made for the full length. A vent that looks clear at the dryer end can still be packed with lint further down.
What are the signs of a clogged dryer vent?
Clothes that take longer than one cycle to dry, a dryer that feels hot to the touch on the outside, and a burning smell during the cycle are the main ones. You may also notice less air coming out of the outside vent hood than before, or the flap on the hood barely moves when the dryer runs. Any of these on their own is worth checking, and more than one together means the vent needs attention soon.
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