Duct Cleaning in Pullman, WA
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Nine months of heating leaves dust to circulate
Your furnace runs September through May here, nine months of the year. That is most of the year pushing air through the same ducts, and whatever settles in them, dust, pet hair, the fine grit that comes with heating a house for that long, gets stirred up and circulated every time the furnace kicks on.
Winter storms add to it. Whitman County has seen 58 winter storms and 27 damaging wind events over the past ten years, and outages come with some of them. When power drops and the furnace stops, then starts again, dust that had settled gets thrown back into the airflow. Over nine months of that, ducts carry more than they were built to.
- 9 months
- September through May, your furnace pushes air through your ducts
- 2 months
- July through August, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- Most homes do fine having their ducts cleaned every few years, not every year. If anyone in the house has allergies, or you have pets shedding into the return vents, you may want to check them sooner. A contractor can look inside the ducts and tell you honestly whether there is enough buildup to bother with right now.
- Is air duct cleaning worth it?
- It depends on what is actually built up inside your ducts. If you see dust kicking out of the vents when the furnace kicks on, or you moved into a home and don't know the history of the system, it is worth having someone check. If the ducts were cleaned recently and nothing has changed since, you probably do not need it yet. A contractor can look at the vents and the ductwork and tell you honestly whether cleaning will make a difference.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to your ductwork and uses brushes or air tools to knock loose the dust and debris stuck inside, then pulls it out through the vacuum. They also clean the supply and return vents, and check the coil and blower since those sit right in the airflow and collect the same dust. On a system that has not been cleaned in years, this is what actually gets the buildup out of the ducts themselves rather than just off the filter.