Duct Cleaning in Flemington, NJ
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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 nights that average 23°F in the dead of winter, it cycles on and off for hours at a stretch, pushing air through the same ductwork the whole time. Dust, pet hair, and whatever settles in the return builds up along the way and gets circulated right back into the house.
Hunterdon County has seen 20 winter storms and 154 damaging wind events over the past ten years. Storms like that knock out power, and 11% of New Jersey households lost power for a full day or more in 2024 alone. When the furnace shuts down and starts back up, it stirs up what has settled in the ducts since the last time it ran.
- 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 number of years that fits every home, but a contractor can look at your ducts and tell you what they need. If anyone in the house has allergies, if pets shed near the return vents, or if you just finished a renovation that kicked up dust, that is a reason to have them checked sooner rather than later. Homes here run the furnace October through May, eight months of the year, so the system has a long stretch each year to pull dust through the ducts. Outside of a specific reason like that, a contractor's inspection will tell you more than a general schedule would.
- Is air duct cleaning worth it?
- It depends on what is actually happening in your ducts. If you can see dust building up around the vent covers, or a room never heats or cools the way the rest of the house does, cleaning solves a real problem. If nobody in the house has breathing trouble and the vents look clean, you likely will not notice much difference. A contractor can look at the ductwork and tell you whether cleaning will change anything in your case.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air tools to knock dust and debris loose from the inside of the duct walls, then pulls it out through the vacuum. Every supply and return vent gets opened and cleaned this way, along with the main trunk lines. The furnace or air handler, including the blower compartment, usually gets cleaned in the same visit since it connects directly to the ducts. The filter is a separate part and gets replaced or cleaned on its own schedule, not as part of the duct work.