Duct Cleaning in Norwich, CT
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Eight months of heat pushes a lot of air through your ducts
Your furnace runs October through May here, eight months a year. Every one of those months, the same air cycles through your ductwork again and again, carrying dust and whatever else is in the house along with it. Over a heating season that long, it builds into a real layer inside the ducts, not just a light coating.
Cold nights make it worse. When winter nights average 24 degrees, the furnace runs longer and more often to hold the house at temperature, so more air and more dust move through the same ducts. That buildup sits in the supply and return lines all season, and it is still there when the ducts get called on again the following October.
- 8 months
- October through May, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
NOAA 1991–2020 monthly normals
- How often should air ducts be cleaned?
- There's no fixed schedule that fits every house. Homes with pets, a recent renovation, or someone with allergies need it more often than a house without those things. Heating and cooling the house eight months a year here means more dust moves through the system, so if nobody can remember the last time it was checked, that's a reason to have a look.
- Is air duct cleaning worth it?
- It's worth it when there's a real reason for it, not just on a schedule. Visible dust coming out of the vents, a musty smell when the system runs, or recent work on the ductwork are all good reasons to have it cleaned. If nobody in the house has allergies and the vents look clean, cleaning ducts that don't need it won't gain much.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air tools to loosen dust and debris from inside the duct walls, then pulls it out through the vacuum. Each supply and return vent gets cleaned, along with the main trunk lines. The furnace or air handler and the coil often get checked too, since dust builds up there as well.