Duct Cleaning in Castle Rock, CO
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Nine months of heat pushes a lot of dust through your ducts
Your furnace runs September through May here, nine months of the year. That is nine months of air moving through the same ducts, carrying dust and pet hair from the house and leaving some of it behind on the duct walls with every pass. On the nights that average 17°F, the furnace cycles on and off for hours, and each cycle pushes more air, and more of that buildup, through the system.
A duct that has been carrying air nine months a year for years is not carrying the same air it started with. The buildup narrows the path air moves through, and a furnace working to push air through a narrower duct is working harder than it needs to.
- 9 months
- September through May, your furnace pushes air through your ducts
- 1 months
- July through July, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- Most homes don't need it on a fixed schedule at all. Clean them when there's a reason, dust coming out of the vents, a musty smell when the furnace kicks on, or work done on the ductwork itself that left drywall dust or debris behind. Homes with pets may need it sooner, since fur and dander build up in the return ducts faster than most people expect.
- Is air duct cleaning worth it?
- It's worth it when there's a clear reason for it, like dust coming out of the vents, a musty smell when the furnace kicks on, or work that was done on the ductwork itself. It won't lower your heating bill or fix a furnace problem on its own. Get it done when you have a reason, not because time has passed.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air tools to knock loose dust and debris, then pulls it out through the vacuum. Each supply and return vent gets cleaned this way, and the main trunk lines get the same treatment. The furnace blower and coil are often cleaned at the same time, since they sit right in the airstream with everything else.