Duct Cleaning in Lynn, MA
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Eight months of heating pushes dust through every room
Your furnace runs from October through May here, close to eight months a year. That is a long stretch of air moving through the same ducts, carrying dust and whatever settles in the trunk lines back into your rooms every time the blower kicks on.
Winter nights average 21°F from December through February, so the system is cycling on and off often during the coldest stretch of the year. Every restart pushes another round of settled dust through the vents. Over eight months of that, the buildup in your ducts is doing more than collecting. It is what your family breathes every time the heat comes on.
- 8 months
- October 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 set calendar for it. A contractor can look inside the ducts and tell you whether there's enough buildup to matter. If anyone in the house has allergies, or you've just finished a renovation that kicked up dust, that's a reason to check sooner rather than wait.
- Is air duct cleaning worth it?
- It's worth it if your ducts actually have a buildup problem, not on a fixed schedule just because time has passed. Signs it's due include dust blowing out of vents, a musty smell when the furnace or AC kicks on, or dust that resettles on furniture right after you clean. A contractor can look inside the ducts with a camera and tell you whether cleaning will help before any work starts.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system to create suction, then uses brushes or air tools to loosen dust and debris along the way so it pulls into the vacuum instead of settling back into the ducts. Every supply and return vent gets cleaned, along with the main trunk lines. The furnace or air handler itself, including the blower and coil, usually gets cleaned at the same time since it's part of the same air path.