Duct Cleaning in St. Augustine, FL
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Step 1 of 3: Equipment
Power outages let damp air sit still in the ductwork
Heat only runs three months a year here, so most of the time your ducts are carrying cooled, damp air. That air needs to keep moving. When the power goes out, the air handler stops and whatever is in the ductwork stops with it, settling on the duct walls instead of blowing through.
Florida saw 38% of households lose power for at least 24 hours in 2024, and St. Johns County has logged 127 damaging wind events over the past ten years. Every time the system sits off, that buildup gets another chance to take hold. It does not clear on its own once the power comes back.
- 3 months
- December through February, your furnace pushes air through your ducts
- 7 months
- April through October, your air conditioner does the same
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NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no set schedule that fits every house, since it depends on what's going on inside the ducts, not the calendar. Pets, a smoker in the house, or someone with allergies all mean more gets pulled into the return air, so those homes tend to need it sooner. If you've just moved in and don't know the history of the system, or you've had work done in the attic or crawlspace where the ducts run, that's a good time to have them checked.
- Is air duct cleaning worth it?
- It's worth it when there's a real reason behind it, like dust that keeps coming back after you clean, a musty smell when the air handler kicks on, or ducts that were exposed during renovation work. It won't lower your power bill, and it won't fix weak airflow caused by a dirty filter or a failing blower. A contractor can look at the ducts and tell you whether cleaning will actually solve what you're noticing.
- What does air duct cleaning involve?
- A contractor connects a vacuum to the duct system and puts it under negative pressure, then loosens the dust and debris inside with brushes or air tools while the vacuum pulls it out. Every supply and return vent gets covered, along with the grilles themselves. The coil and blower housing usually get checked too, since debris collects there as much as it does in the ducts.