Dryer Vent Cleaning in Centreville, MD
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Step 1 of 3: Equipment
Cold vents make lint stick
Your dryer pushes out warm, damp air every time it runs. From October through April, that air is moving through a vent sitting in a space that averages 28°F at night. The air cools fast against those cold walls, and the moisture in it turns to dampness on the inside of the vent. Lint sticks to a damp wall far more than it does to a dry one, and it builds up there instead of blowing out the hood.
Once enough lint packs into the vent, air stops moving through it the way it should. That traps more moisture in the line, which gives the next load of lint something to cling to.
- 28°F
- the average winter night, and cold vents catch damp lint
- 7 months
- October through April, the vent stays cold
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NOAA nClimDiv, 1991–2020 normals
- How often should a dryer vent be cleaned?
- Once a year is the standard most contractors work to. Lint builds up inside the vent pipe itself, not just in the trap, and that buildup is what turns into a fire risk or a dryer that takes two cycles to dry one load. A contractor can look at your setup and tell you if the run of pipe you have needs cleaning more often than that.
- Can I clean my dryer vent myself?
- You can clean the lint trap and the first few feet of the vent yourself with a vent brush kit made for this. What you cannot easily reach is the full run of pipe behind the wall and out to the vent hood outside, especially if it has bends in it. A contractor uses a longer rotating brush and can check that the vent hood flap outside is opening and closing the way it should.
- What are the signs of a clogged dryer vent?
- Clothes coming out hot to the touch but still damp is the clearest sign. Others are a drying cycle that now takes noticeably longer than it used to, the outside of the dryer feeling hot, a burning smell, and little to no airflow when you hold your hand near the vent hood outside while the dryer runs. Lint collecting around the vent hood outside is also worth a look.