Duct Cleaning in Blacksburg, VA
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Eight months of heating pushes air through your ducts
Your furnace runs October through May here, eight months of the year. On winter nights averaging 26 degrees, it cycles on and off for hours at a stretch, and every cycle pushes air through the same ductwork. Dust, pet hair, and whatever else is in the house gets pulled in and blown back out, over and over, for most of the year.
Montgomery County has also seen 18 winter storms and 94 damaging wind events over the past ten years. When storms knock out power, systems shut down and restart, and that stop-and-start pattern stirs up what has settled in the ducts rather than carrying it along smoothly. Over enough winters, that buildup can end up back in the air you are breathing in the house.
- 8 months
- October through May, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There is no fixed schedule that fits every home, so most contractors go by what they find rather than the calendar. If anyone in the house has allergies, or you have pets that shed, or you just finished a remodel that kicked up dust and drywall debris, that is a reason to have them checked sooner. Ducts that blow visible dust out of the vents or registers that get dirty fast are telling you something too. A contractor can look inside the ductwork and tell you whether it needs cleaning now or can wait.
- Is air duct cleaning worth it?
- It is worth it when there is a real reason behind it, not just as a routine habit. Ducts that carry dust, pet hair, or debris you can see or smell mean the air moving through your home is picking that up too. It will not fix a furnace or air handler that is already struggling, and it will not lower your heating bills on its own. A contractor can look at the ductwork and tell you whether cleaning will actually help your situation.
- What does air duct cleaning involve?
- A technician connects a vacuum system to the ductwork and uses brushes or air tools to loosen dust and debris along the way, then pulls it all out through the vacuum. Each supply and return vent gets checked and cleaned, along with the main trunk lines. The furnace or air handler and the coil often get a look too, since dirt there ends up back in the ducts anyway. A thorough job means every vent in the house gets attention, not just the ones that are easy to reach.