Duct Cleaning in Johnson City, TN
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Seven months of heating pushes air through your ducts
Your furnace runs October through April here, close to seven months a year. Every one of those months, it is pushing air through the same ductwork, and whatever is sitting in that duct gets carried into the rooms you live in. With winter nights averaging 29°F, the furnace is working most nights, not just on the cold snaps.
Washington County has seen 30 winter storms and 40 damaging wind events over the past ten years. Storms like that can knock out power and shut a system down mid-cycle, and with most homes here owner-occupied, it is usually the homeowner who has to sort out what a dead system left behind in the ducts once it comes back on.
- 7 months
- October through April, your furnace pushes air through your ducts
- 4 months
- June through September, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There is no fixed schedule that fits every home. Get them checked sooner if anyone in the house has allergies, if you've had work done that left dust behind, like a duct replacement or attic insulation, or if you have pets. A contractor can look inside the ducts and tell you whether there is enough buildup to justify cleaning them now.
- Is air duct cleaning worth it?
- It's worth it when your ducts actually have a problem, dust buildup, pet hair, signs of rodents or mold. It won't lower your heating bills or fix an airflow problem caused by something else, like a bad blower motor or a clogged filter. A contractor can look at your system and tell you whether cleaning will actually help or whether something else needs attention first.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to your ductwork, then uses brushes or air tools to knock loose dust and debris from inside the ducts as it gets pulled into the vacuum. Each supply and return vent gets cleaned this way, along with the main trunk lines. The furnace or air handler and its coil often get cleaned at the same time, since dust collects there too.