Duct Cleaning in Alexandria, VA
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Seven months of heating pushes air through ducts that rarely get a break
Your furnace runs October through April here, seven months of the year. On nights that average 29°F through the coldest stretch, it runs long and often, and every cubic foot of that heated air moves through the same ductwork. Dust, pet hair, and the fine debris that settles in a house get pulled in and pushed back out, over and over, for most of the year.
Winter storms add to what the ducts have to handle. The area has seen 31 damaging wind events and 8 winter storms over the past ten years, and Virginia households lost power for 24 hours or more at a notable rate in 2024. When the power drops and the furnace stops, then starts again, dust that settled in the ducts gets stirred up and sent through the house along with the heat.
- 7 months
- October through April, your furnace pushes air through your ducts
- 4 months
- June through September, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no set number of years that fits every home. Look for the signs instead. Dust or mold visible around the vents, a musty smell when the system runs, or anyone in the house dealing with allergy symptoms that don't have another explanation. Homes with pets or a smoker, or ones that went through recent renovation work, tend to need it sooner. A contractor can look at the actual ductwork and tell you where things stand.
- Is air duct cleaning worth it?
- It depends on what's actually in your ducts. If you can see dust buildup, mold, or pest debris through a vent, cleaning solves a real problem. If the ducts look clean and nobody in the house has unexplained allergy symptoms, there may be nothing to gain from it. A contractor can look at the ducts themselves and tell you whether cleaning will make a difference in your case.
- What does air duct cleaning involve?
- A contractor loosens dust and debris inside the ductwork with tools made for that job. Then it gets vacuumed out with equipment strong enough to pull it through the full system. The supply and return vents get cleaned too, since dust settles there as much as anywhere. The furnace or air handler often gets checked as well, since the blower and coil sit right in the path of that air.