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A residential attic interior with blown-in insulation on the floor, flexible silver HVAC ducts, a metal plenum box, and wooden rafters lit by light entering through a small louvered vent.

Duct Cleaning in Bronx, NY

Tell us about your home, and a licensed contractor who covers Bronx County will get in touch.

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Step 1 of 3: Equipment
An attic interior showing a metal air handler unit connected to flexible silver-wrapped HVAC ducts running beneath a pitched wooden roof.

Seven months of heating pushes air through the same ducts

Your furnace runs from October through April here, seven months of the year. Every time it kicks on, it pushes air through the same ducts, and whatever has settled in them goes right back into the rooms.

On winter nights that average 28°F, the furnace is not cycling lightly. It is working through cold stretches for months at a stretch, and dust and debris built up in the ducts make it push harder to move that air through the house.

7 months
October through April, your furnace pushes air through your ducts
4 months
June through September, your air conditioner does the same
Isometric cutaway illustration of a gray house showing interior rooms with furniture and a network of round ductwork connected to a mechanical unit.
Your ducts carry heat October through April and cooled air June through September.

NOAA nClimDiv, 1991–2020 normals

How often should air ducts be cleaned?
There is no fixed schedule that fits every home. A contractor should look sooner if anyone in the house has allergies, if there has been a rodent problem, or if there has been water damage near the ducts. Otherwise, have a contractor inspect the ducts and tell you whether there is enough buildup to justify cleaning them.
Is air duct cleaning worth it?
It depends on what is going on in your ducts. If you can see dust blowing out of the vents, or there is a musty smell when the system runs, cleaning solves a real problem. If the ducts look fine and nobody in the house has breathing trouble, it is not something you need to do on a schedule just to do it. A contractor can look inside the ducts with a camera and tell you whether there is buildup worth removing.
What does air duct cleaning involve?
A contractor connects a vacuum system to the ductwork, then uses brushes or air tools to knock loose dust and debris from inside the duct walls before pulling it out. Every supply and return vent in the house gets cleaned, along with the main trunk lines. If your system has a coil or a blower, those can get cleaned in the same visit since dust settles there too.
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