Duct Cleaning in Cambridge, MD
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Seven months of heat means seven months pushing dust through your ducts
Your furnace runs October through April here, close to seven months straight. Every time it kicks on, air moves through the ductwork and carries whatever is sitting in there with it, dust, pet hair, whatever settled in over the summer. On nights averaging 29°F, that furnace is cycling often, and each cycle pushes more of it around the house.
Dorchester County has had 12 winter storms and 58 damaging wind events over the past ten years. Storms like that can knock out power, and Maryland households went without it for 24 hours or more at times last year. When a system sits idle through an outage and then starts back up, whatever built up in the ducts gets stirred loose all over again.
- 7 months
- October through April, your furnace pushes air through your ducts
- 4 months
- June through September, your air conditioner does the same
NOAA nClimDiv, 1991–2020 normals
- How often should air ducts be cleaned?
- There's no fixed schedule that fits every home. Homes with pets, someone who smokes indoors, or recent renovation work need it more often, since those add dust and debris faster than normal living does. Heating runs here October through April, seven months of the year, so more air moves through those ducts than in a milder climate, and buildup can show up sooner than you'd expect. A contractor can look at your ductwork and tell you whether it needs attention now or can wait.
- Is air duct cleaning worth it?
- It's worth it when there's a real reason behind it, like visible dust coming from the vents, a musty smell when the system runs, or work done on the ductwork itself. It won't fix an allergy problem on its own and it won't lower your heating bill. If nothing seems wrong and no one in the house has new breathing trouble, there's no rush to schedule it.
- What does air duct cleaning involve?
- A contractor connects a vacuum system to the ductwork and uses brushes or air tools to knock loose dust and debris from inside the supply and return lines, then pulls it all out through the vacuum. The vents and registers get cleaned too, along with the grilles covering them. On some jobs the blower motor and coil get a look and a cleaning if they're reachable, since dust settles there as well.