Duct Cleaning in Spartanburg, SC
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What seven months of heating pushes through your ducts
Your furnace runs October through April here, seven months of the year. On the cold nights that average 33°F through the winter, it cycles on and off again and again, and every cycle pushes air through the same ductwork. Dust that settles between cycles gets stirred up and pushed through the house each time the system starts.
Spartanburg County has seen 125 damaging wind events over the past ten years, and 45% of South Carolina households went at least 24 hours without power in 2024. A furnace that loses power mid-cycle sits idle, then restarts and pushes out whatever settled in the ducts while it was off.
- 7 months
- October through April, your furnace pushes air through your ducts
- 5 months
- May through September, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no fixed schedule that fits every home. Most homes don't need it unless something specific is going on, like allergies that won't clear up, a pest problem in the ductwork, or water damage. Wind is common here, with 125 damaging wind events over the past ten years, so it's worth checking the ducts after a bad storm for debris that got pulled in.
- Is air duct cleaning worth it?
- It depends on what's actually happening in the ducts. Dust blowing out of the vents, a musty smell when the system runs, or visible debris in a supply register are signs cleaning will help. If you're not seeing or smelling any of that, the ducts are probably fine as they are. A contractor can look inside the ductwork and tell you whether it's needed.
- What does air duct cleaning involve?
- A contractor uses brushes and a vacuum system to loosen dust and debris inside the ducts and pull it out of the house rather than push it further in. The supply and return registers get cleaned too, along with the coil and blower housing, since debris collects there as well. The furnace filter still needs regular changes afterward, since that's what keeps new dust from building back up.