Duct Cleaning in Lancaster, PA
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Step 1 of 3: Equipment
Seven months of heating pushes a lot of air through your ducts
Your furnace runs October through April here, seven months out of the year. On the cold nights in between, the ones averaging 24°F from December through February, it runs longer and more often to keep up. All that air moving through the ductwork carries dust with it, and dust settles in the bends and the long runs where the air slows down.
That buildup does not go anywhere on its own. It sits in the ducts and gets pushed back into the house every time the furnace kicks on, all winter long.
- 7 months
- October through April, your furnace pushes air through your ducts
- 3 months
- June through August, your air conditioner does the same
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NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There is no fixed schedule that fits every house. Homes with pets, a smoker, or someone with allergies tend to need it more often. If dust is visibly blowing from the vents, or someone just finished a renovation, that is a sign to get it done regardless of when it was last cleaned. A contractor can look at the ducts and tell you what condition they are actually in.
- Is air duct cleaning worth it?
- It is worth it when there is a real reason for it, like visible dust coming from the vents, a musty smell when the furnace or air conditioner runs, or signs of rodents or mold in the system. It will not lower your heating bill or fix an allergy on its own. A contractor can check the ducts and tell you honestly whether cleaning will help, or whether the filter or a duct leak is the actual problem.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system and uses brushes or air tools to knock dust and debris loose so it can be pulled out. This covers the supply and return ducts, the grilles, and usually the coil and blower compartment inside the furnace or air handler. Registers get wiped down or pulled off and cleaned separately. A good job leaves the system sealed back up the way it was found, with no gaps at the connections.