Duct Cleaning in Laconia, NH
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Nine months of heating pushes air through your ducts
Your furnace runs September through May here, close to nine months of the year. Every time it kicks on, it pushes air through the same ductwork, and that air carries dust, pet hair, and whatever else settles in the house back through the system. Over a winter with nights averaging 14 degrees, the furnace is cycling on and off most of the day, so that air is moving through the ducts constantly.
Belknap County sees its share of winter storms, and the power behind them does not always hold. When the furnace shuts off and restarts after an outage, or runs harder to catch up on a cold night, it pulls more air through ducts that have been collecting dust all season. Dirty ducts feed that dust straight back into the rooms you're trying to keep warm.
- 9 months
- September through May, your furnace pushes air through your ducts
- 2 months
- July through August, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- Most homes go a few years between cleanings, though there's no fixed number that fits every house. If anyone in the house has allergies, or pets shed near the return vents, it's worth doing sooner. Homes here run the furnace September through May, nine months of the year, so ducts have more time to collect dust than they would somewhere with a shorter heating season. A contractor can look at what's built up inside yours and tell you honestly where you stand.
- Is air duct cleaning worth it?
- It depends on what's going on in your ducts. If you see dust blowing out of the vents, or there's noticeable buildup when you look in with a flashlight, cleaning them makes a real difference to the air moving through the house. If the ducts look clean and airflow feels normal at every vent, there's less to gain from it right now. A contractor can look at your ducts and tell you honestly whether it's needed.
- What does air duct cleaning involve?
- A technician connects a vacuum system to your 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. They'll typically go through the supply and return ducts, the vent covers, and often the coil and blower area near the furnace, since debris collects there too. The filter isn't part of the ductwork itself, it gets replaced separately to keep new dust from building back up.