Duct Cleaning in Green Bay, WI
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Nine months of heating pushes air through your ducts
Your furnace runs September through May here. That is most of the year with the same air cycling through the same ductwork, and whatever that air carries behind it stays in the runs and along the seams.
Winter nights average 14°F, so the furnace is working through the coldest stretch of the year to keep the house warm, moving air through those ducts night after night. Green Bay has also seen 22 winter storms and 78 damaging wind events over the past ten years, and 18% of Wisconsin households lost power for a full day or more in 2024. Each time the system shuts down and starts back up around an outage, it can stir up what has settled in the ducts and push it back into the rooms.
- 9 months
- September through May, your furnace pushes air through your ducts
- 2 months
- July 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 home, so the better question is whether you have a reason to clean them now. If nobody in the house has allergies, you don't see dust building up around the vents, and you haven't had construction or water damage, there's no rush. Pets, a smoker in the house, or recent renovation work are all reasons to move it up.
- Is air duct cleaning worth it?
- It's worth it if you can see the reason for it. Dust kicked up when the furnace turns on, a musty smell from the vents, or registers that look dirty inside are signs the ducts are holding onto something that reaches the air in the house. If none of that is happening, cleaning them won't make the air noticeably better or lower your heating bill.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system and uses brushes or air tools to knock loose the dust and debris inside, then pulls it out through the vacuum before it resettles. Each supply and return vent gets cleaned this way, and the furnace or air handler usually gets checked too since every duct in the house connects back to it. The filter and the coil often get covered as well when they're accessible, since both sit in the path of the air the ducts carry.