Duct Cleaning in Denver, CO
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Step 1 of 3: Equipment
Eight months of forced air moves a lot of dust through your ducts
Your furnace runs October through May here, close to eight months a year. Every one of those months, it's pushing air through the same ducts, and whatever is in your house rides along with it. Dust, pet hair, dry skin, all of it settles in the bends and joints where the airflow slows down.
Winter nights averaging 19°F mean that furnace is cycling on and off most of the night, all season long. Each cycle stirs up what's already sitting in the ductwork and adds a little more. Over years of that, buildup can block airflow to certain rooms and make the furnace work harder to push air through.
- 8 months
- October through May, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
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NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no set schedule that fits every home, since it depends on how dusty the ducts get and who's living there. If anyone has allergies, or you've had a remodel or insulation work done that left dust behind, it's worth having them checked sooner rather than later. Homes with pets tend to need cleaning more often too, since fur and dander build up faster. A contractor can look inside with a camera and tell you honestly whether yours need it now or can wait.
- Is air duct cleaning worth it?
- It depends on what's actually going on inside your ducts. If you see dust blowing out of the vents or notice a musty smell when the furnace kicks on, cleaning them will make a real difference in the air you breathe. If the ducts look fine and nobody in the house has breathing trouble, it's not something you need to rush into. A contractor can inspect the system and tell you honestly whether it's needed.
- What does air duct cleaning involve?
- A contractor connects a powerful vacuum to the duct system, then agitates the inside of each duct with brushes or air tools to loosen dust and debris before pulling it out. The supply vents and return vents both get cleaned, along with a check of the coil and blower housing, since buildup there affects airflow too. Cleaning the whole system, not just the vents you can see, keeps dust from resettling within a few weeks.