Duct Cleaning in Fresno, CA
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Step 1 of 3: Equipment
Eight months of heating pushes dust through your ducts
Your furnace runs October through May here, close to eight months a year. Every time it kicks on, air moves through the ducts and pushes whatever has settled in them into the rooms you live in. On winter nights averaging 32°F, that furnace is cycling often, and each cycle is another pass of air through that buildup.
Fresno County has seen 189 winter storms and 179 damaging wind events over the past ten years. Wind like that drives dust and debris into a house through every gap it can find, and a lot of it gets pulled into the return duct before it ever settles on a floor or shelf.
- 8 months
- October through May, your furnace pushes air through your ducts
- 4 months
- June through September, 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 fixed schedule that fits every home, but a contractor can tell you when yours needs it by looking inside the vents. If anyone in the house has allergies, or you have pets, the ducts tend to need attention sooner rather than later. A home that just went through a remodel should get the ducts cleaned once the construction dust settles, no matter when the last cleaning was.
- Is air duct cleaning worth it?
- It's worth it if you can see dust coming out of the vents, or if the air moving through your registers seems dirtier than it should. Your furnace runs most of the year here, October through May, so whatever is sitting in the ducts gets pushed through the house for months at a time. Duct cleaning won't fix a furnace problem or lower a utility bill, and it clears out buildup rather than solving mechanical issues.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system to create negative pressure, then uses brushes or air whips to knock dust and debris loose so it gets pulled into the vacuum instead of into the rooms. Every supply and return vent gets covered, along with the main trunk lines. The furnace or air handler usually gets cleaned too, since that's where a lot of the buildup collects.