Tennessee HVAC Help
An attic space with wooden rafters, loose fiberglass insulation on the floor, and a metal air handler connected to flexible silver HVAC ducts.

Duct Cleaning in Nashville, TN

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

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Step 1 of 3: Equipment
An insulated HVAC air handler unit connected to a reflective foil-wrapped flexible duct inside a residential attic.

Seven months of running ducts pull in a lot of dust

Your furnace runs October through April here, and every time it cycles on, air moves through the same ductwork. Dust, drywall dust if the house is newer, pet hair, all of it settles in the duct walls over a heating season that long. With winter nights averaging 31°F, the furnace is cycling often, and more cycles means more air pulled through the ducts.

A duct system that has not been cleaned in years is moving air through buildup instead of clean metal. Whatever has settled in there gets pushed back into every room the system heats, all winter long.

7 months
October through April, your furnace pushes air through your ducts
5 months
May through September, your air conditioner does the same
Isometric cutaway illustration of a house interior showing ductwork, vents, an air handler unit, and furnished rooms with a bed, sofas, and a bathroom under a shingled gable roof.
Your ducts carry heat October through April and cooled air May through September.

NOAA nClimDiv, 1991–2020 normals

How often should air ducts be cleaned?
There's no fixed schedule that fits every house. If anyone in the house has allergies, or the ducts were exposed to dust during a renovation, cleaning them sooner makes sense. A contractor can look inside the ducts and tell you what condition they're actually in rather than going by a calendar.
Is air duct cleaning worth it?
It depends on what's in the ducts. If there's visible dust coming out of the vents, or you can see buildup when you look inside a duct with a flashlight, cleaning them will help the air moving through your house. If the ducts look clean, cleaning them again won't do much. A contractor can check before you pay for something you don't need.
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. Every supply and return vent in the house gets opened and cleaned this way. The furnace or air handler itself, along with the coil, usually gets a look too, since dust builds up there as well.
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