Dryer vent cleaning in Cottage Grove, MN

Humid exhaust freezes on contact with a cold cap. Light frost is normal; thick ice that blocks the flapper means airflow is too slow to clear the moisture, which points to lint buildup.

Walk around the exterior of the house on the same side as your laundry room and look for a 4-inch hooded cap with a flap, usually 1–4 feet above the ground for basement laundry or at second-floor height for upstairs laundry. Run the dryer and look for the flap moving or feel for warm air.

No. Building code prohibits screens on dryer exhaust terminations because they trap lint. If your cap has a screen we remove it and recommend a louvered or pest-guard cap designed for dryers.

Yes. Drifting snow against a low wall vent blocks the flapper and forces exhaust back into the duct. After big snowfalls, clear 12 inches around the cap. We also install vent extensions that raise the outlet above typical drift height.

Yes. Wall and ground-level vents are $139 because we reach the cap from the ground or a short ladder and clean the full run from inside. Roof vents are $199.

Not for a gas dryer, ever. For electric dryers they are a last resort for apartments with no exterior access and they dump warm moist air and fine lint into the room. A proper exterior vent is always better.

Once a year for most households, and every six months if you do more than 8 loads a week, have pets, own a roof-vented dryer, or have a duct longer than 25 feet. The U.S. Fire Administration and most dryer manufacturers recommend annual cleaning as the baseline.

Most wall or ground-level vents take 45–60 minutes. Roof vents take 60–90 minutes because we clear the cap from the roof and clean the vertical run from both ends. Bird nest removal or a very long duct can add 20–30 minutes.