How Does Duct Cleaning Help Heating?

It may seem a rather trivial thing to get your ducts cleaned on a regular basis. After all, they’re just ducts. As long as hot air comes through the vents, who cares, right? Actually getting your ducts cleaned regularly can have a dramatic effect on both the efficiency of your heating and the quality of your air. Let’s take a look at some of the benefits of regular duct cleaning.

Heating Efficiency

The health of your ducts is actually a huge determining factor in how efficiently your heating system heats your home. The U.S. Department of Energy estimates that as much as 30% of a forced air system’s heat is lost on average, due to leaks in the ducts. Regular duct cleaning can find and seal these leaks, increasing your heating efficiency and lowering your heating bills as a result.

Cleaning your ducts also clears out any potential obstructions that may be blocking the airflow. Occasionally, debris can get into the ductwork and cause problems. Small animals may even get into the ducts and become trapped. Which leads us to our next point.


Over time, it is almost inevitable for contaminants to enter your duct system. Insects, dust, and pollen are all small enough to easily find their way into the ducts, decreasing your air quality when the heating is on. The two biggest threats here, though, are mold and animals.

Mold tends to thrive in dark, damp areas. If water begins to leak into your ducts, it forms a perfect environment for mold growth. Not only is this bad for your ductwork, but some mold types can release spores that are detrimental to your health. These spores can be circulated throughout the house through the ducts.

Small animals, like squirrels and raccoons, can also enter the ducts from the outside. Often, they can become lost or trapped in the ducts, eventually dying. This can lead to a horrible smell when the heat is turned on, as well as presenting a biohazard. Regular duct cleaning can prevent these issues from occurring, or at the very least prevent them from getting worse when they do occur.

If you haven’t had your ducts cleaned in a while, call Clean Air Act. We provide heating services throughout the Portland area.

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