Duct Cleaning in Trenton, NJ
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Step 1 of 3: Equipment
Seven months of heat, moving through the same ducts
Your furnace runs October through April here, close to seven months a year. On winter nights that average 26°F, it cycles on and off often to keep the house warm, and every cycle pushes air through the same ductwork. Dust, pet hair, and the fine grit that gets in around windows and doors ride along with that air, and some of it settles back into the duct walls instead of blowing through.
That buildup does not clear out on its own. It sits in the ducts and gets stirred up and circulated through the house each time the furnace runs, all winter long.
- 7 months
- October through April, your furnace pushes air through your ducts
- 4 months
- June through September, 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 here run the furnace October through April, seven months of the year, so ducts get more use than in places with a shorter heating season, and dust and pet hair build up over that stretch. If anyone in the house has allergies, or you have had renovation work that left dust behind, it is worth having a contractor look sooner rather than waiting.
- Is air duct cleaning worth it?
- It is worth it if you can see dust coming out of the vents, if a room never seems to get fully warm or cool, or if someone in the house has started sneezing more indoors than out. It will not fix a furnace or air conditioner that is failing on its own, and it will not lower a power bill by much. What it does is clear out what has built up so the air moving through the house is cleaner.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system and brushes or agitates the inside of the ducts to loosen dust, then pulls it out through the vacuum so it does not settle back into the house. Each vent and return gets checked and cleaned, and the filter often gets replaced at the same time since it is what actually catches what is left in the air. The blower and coil may get a look too, since both sit in the path of that same air.