Duct Cleaning in Troy, MI
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Eight months of heat pushes dust through the same ducts
Your furnace runs October through May here, close to eight months straight. That's eight months of air moving through the same ductwork, carrying dust, pet hair, and whatever else settles in the return before it gets pulled back through. With winter nights averaging 19°F, the furnace is working hard during that stretch, and it's pulling air through those ducts constantly to keep the house warm.
Michigan also sees its share of power interruptions, storms knock things out for a day or more in over a third of households some years. When the power drops and comes back, and when a furnace cycles on and off through a cold winter, dust that's settled in the ducts gets stirred up and redistributed through the house. Over eight months, that adds up.
- 8 months
- October through May, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no fixed schedule that fits every house. If anyone in the house has allergies, or the vents show visible dust when you look inside, that's a sign to get them cleaned. Homes with pets or a recent renovation tend to need it more often than homes without. A contractor can look at your ducts and tell you whether they need it now or can wait.
- Is air duct cleaning worth it?
- It's worth it if your ducts actually have a buildup of dust, pet hair, or debris you can see or feel through the vents. It won't fix a furnace that's struggling or lower your bills on its own. A contractor can look at the ducts and tell you honestly whether cleaning will help your situation or whether the issue is somewhere else.
- What does air duct cleaning involve?
- A contractor uses brushes and a vacuum system to loosen and pull debris out of the ductwork, working through the supply and return vents. The furnace or air handler and the coil usually get cleaned at the same time, since dust collects there too. The vents get sealed back up afterward so dust isn't tracked through the house.