Duct Cleaning in Beaver Dam, WI
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Step 1 of 3: Equipment
Eight months of heat moves a lot of air through your ducts
Your furnace runs October through May here, eight months of the year. On the nights that average 14°F, it cycles on more often to hold the temperature, and every cycle pushes air, and whatever is riding in it, back through the same ductwork.
Dodge County has logged 18 winter storms and 79 damaging wind events over the past ten years. Wisconsin households went without power for a day or more at a rate of 18% in 2024. Each time the system shuts down and starts back up, it stirs whatever has settled in the ducts and sends it through the house again.
- 8 months
- October through May, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
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NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- Every few years is enough for most homes, and some go longer without trouble. Homes here run the furnace October through May, so ducts carry heated air most of the year and pick up dust from that regular use. If anyone in the house has new allergy symptoms, or you can see dust kicking out of the vents, that's a sign to have them checked sooner.
- Is air duct cleaning worth it?
- It depends on what's actually in the ducts. If there's visible dust buildup, a musty smell when the furnace kicks on, or you've had rodents or a leak that dropped debris into the system, cleaning solves a real problem. If none of that is happening, cleaning won't make the air noticeably different. A contractor can look at the ductwork and tell you whether it needs it before you pay for anything.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air tools to knock loose dust and debris from the inside of the supply and return runs, then pulls it out through the vacuum. Vents and registers get cleaned too, since that's where a lot of the buildup collects. The furnace blower and coil are usually checked at the same time, since they're part of the same air path.