Duct Cleaning in Phoenix, AZ
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What the desert puts into your ducts
Phoenix runs its air conditioning most of the year and its furnace only November through March, five months of the year. That switch matters. Dust and fine sand move through the system all summer while the blower runs, and it settles in the ducts. When the furnace finally kicks on for winter, it pushes that buildup through the house on the coldest nights, when lows average 41°F.
Wind is part of the problem too. Maricopa County has logged 718 damaging wind events over the past ten years, and each one throws more dust at the house. Ducts that carry that much grit collect it in the bends and joints, and a dirty duct system pushes dust into every room it feeds.
- 5 months
- November through March, your furnace pushes air through your ducts
- 7 months
- April through October, 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. Ducts pick up dust and pet hair over the years, but that buildup only matters once it starts affecting airflow or the air coming out of the vents. If someone in the house has allergies, or the ducts were open to dust during a remodel, it is worth having them checked sooner rather than waiting. A contractor can look inside the ductwork and tell you whether cleaning makes sense now.
- Is air duct cleaning worth it?
- It depends on what is actually happening in the ducts. Visible dust blowing out of the vents, a musty smell when the air runs, or buildup you can see inside the duct openings are signs cleaning will help. If none of that is happening, the ducts are probably fine and cleaning will not make a noticeable difference. A contractor can inspect the ducts and tell you plainly whether it is worth doing in your case.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork, then uses brushes or air tools to knock dust and debris loose from inside the duct walls so the vacuum can pull it out. Every supply and return vent gets cleaned this way, and the vent covers themselves are usually wiped down or washed separately. The blower compartment on the furnace or air handler often gets cleaned at the same time, since air passes through there before it ever reaches the ducts.