Duct Cleaning in Delaware, OH
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Eight months of heat means eight months of buildup in your ducts
Your furnace runs October through May here, eight months a year. Every time it cycles on, air moves through the same ducts, stirring up whatever has settled since the last run. On nights that average 23°F, that cycling happens for hours at a stretch, so more air moves through those ducts than it would somewhere milder.
Storms add to what the ductwork deals with. Delaware County has seen 94 damaging wind events and 5 winter storms over the past ten years, and power loss is not rare in Ohio, with 18% of households going at least a day without it in 2024. When the power drops and the furnace stops, dust and debris in the ducts just sit until the system starts again and pushes it back through the house.
- 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 home, but a few signs tell you it's time. Dust blowing out of the vents, a musty smell when the furnace kicks on, or a recent renovation that kicked up drywall dust are all reasons to have them looked at. Homes here run the furnace October through May, eight months a year, so more air moves through the ducts than in places with a shorter heating season. A contractor can check the ductwork directly and tell you whether there's buildup worth removing.
- Is air duct cleaning worth it?
- It's worth it if you can see or feel a reason for it. Dust blowing out of the vents, a musty smell when the furnace runs, or visible debris when you pull a vent cover off are real signs something is built up in there. If none of that is happening and your filter changes keep the system running clean, you likely don't need it yet. A contractor can look at the ducts directly and tell you whether there's buildup worth removing.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air whips to loosen dust and debris as they go, pulling it out through the vacuum rather than pushing it further into the house. They work vent by vent, checking both the supply and return lines, and often check the coil and blower housing too since dust settles there as well. The job covers the full duct run, not just the vents you can see.