Duct Cleaning in Huntsville, AL
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Seven months of heat pushes air through the same ducts
Your furnace runs October through April here, close to seven months a year. Every time it kicks on, air moves through the ductwork and out into the house. Dust, pet hair, and whatever else settles in the ducts rides along with it, and on the nights that average 33°F, that is most nights all winter.
Madison County has seen 431 damaging wind events and 9 winter storms over the past ten years. Storms like that can push outside air into a house through gaps that are normally sealed, and whatever comes in settles in the ducts along with everything else already there. With most homes here owner-occupied, it is usually the same duct system carrying that air year after year.
- 7 months
- October through April, your furnace pushes air through your ducts
- 5 months
- May through September, 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. A contractor will look for actual signs, dust building up fast around vents, weak airflow in some rooms, or a pest problem in the ductwork, and clean based on what they find rather than the calendar. Homes here run their heat October through April, so ducts get steady use most of the year, but that alone doesn't mean they need cleaning on a timer.
- Is air duct cleaning worth it?
- It depends on what's going on in the ducts. If you can see dust building up around the vents, if the airflow feels weak in some rooms, or if someone in the house has started having more allergy symptoms indoors than outdoors, cleaning is worth doing. If none of that is happening, cleaning ducts that are already working fine won't change how your system heats or cools the house.
- What does air duct cleaning involve?
- A contractor uses a vacuum system connected to the ductwork along with brushes or air tools to dislodge dust and debris from inside the duct walls, then pulls it out through the vacuum. Each supply and return vent gets opened up and cleaned individually. The furnace or air handler itself, including the blower and coil, usually gets attention too, since those parts move the air that runs through the ducts.