A metal HVAC air handler with attached flexible and rigid ductwork installed in an unfinished attic with exposed wooden rafters and fiberglass insulation.

Duct Cleaning in Brainerd, MN

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Step 1 of 3: Equipment

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A flexible silver HVAC duct connects to a metal air handler unit mounted in an insulated attic with exposed wooden rafters and a circular gable vent.

Nine months of forced air moves a lot through your ducts

Your furnace runs September through May here, nine months of the year. Every one of those months, air is moving through your ductwork, and whatever rides in that air settles out along the way. Dust, pet hair, the fine grit that tracks in on boots all winter. Nine months of that is a long stretch of buildup for one system to carry.

Most homes in Crow Wing County are single-family and owner-occupied, so it is the same ducts, the same system, run by the same household year after year. The buildup does not clear itself. It just keeps going until something moves it out.

9 months: September through May, your furnace pushes air through your ducts
2 months: July through August, your air conditioner does the same

Isometric cutaway illustration of a single-story house with a dark shingled roof, showing interior rooms with furniture and a branching metal duct system running through the ceiling space.

Your ducts carry heat September through May and cooled air July through August.

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NOAA nClimDiv, 1991–2020 normals

How often should air ducts be cleaned?: Most homes don't need duct cleaning on a set schedule. It matters more when something specific has happened. A remodel that left drywall dust behind, a rodent problem, or water getting into the ductwork are all good reasons to have them cleaned. If anyone in the house has allergy or breathing issues that don't have another clear cause, that's worth looking into as well. Outside of those situations, cleaning more often doesn't add any real benefit.
Is air duct cleaning worth it?: It depends on what's actually going on in your ducts. If you can see dust building up around the vents, if there's been a rodent or water problem in the ductwork, or if someone in the house has allergy symptoms that don't add up otherwise, cleaning is worth doing. If none of that applies, it's more of a comfort choice than something the system needs. Cleaning the ducts also won't fix a furnace or air conditioner that isn't running right. That problem comes from somewhere else and needs its own fix.
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, then pulls it out through the vacuum. Every supply and return vent gets opened and cleaned, along with the main trunk lines that carry air to them. The blower and coil inside the furnace or air handler usually get cleaned too, since air passes through there before it ever reaches the ducts. When it's done, the vents, the ductwork, and that equipment should all be noticeably cleaner.

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