What's Crawling Around in Your Home's Air Ducts?

It’s not fun to think about, but often times dust isn’t the only thing that is in your duct system. You may hear animal noises coming from air ducts and fear you have unwanted guests. You can pull out all the stops to lure the little guys out but they may not leave their babies if they are nesting. Call Comfortech Service Experts for a complete duct cleaning and we will make sure your duct system is clear of all these nasty house guests, for instance:

Bugs and Insects

Not much is worse than working to kill a spider and watching is escape into your air vent. It’s out of reach now and all you can do is lay in your room and imagine the spider laying all those baby spiders. You may even believe you hear some scurrying around your duct system. Never fear. Comfortech Service Experts will come see you and give you a full duct cleaning and make sure that spider and any of her yucky friends are good and gone. The offspring, too.


When raccoons, mice, and other furry visitors find themselves in your duct system, usually through openings in the duct work and breaks in the foundation or home exterior, it causes several issues. First, wildlife can leave droppings behind and can destroy anything they come across, including holiday decorations or baby toys you’re storing in your attic. Second, rodents tend to chew, which can result in exposed wiring. That combined with the dried grass and leaves they’re likely bringing in to create a nest, and now you have quite the fire hazard in your duct system, your attic, or behind your walls. A good duct cleaning can eliminate rodent droppings or nests, but you could also need to call an expert wildlife removal company to remove the rodents and possibly an electrician if there was any wire damage.


Birds usually look for safe and dry places to nest, like your air vents. Nests mean eggs, which means they are feeding babies, and that means BUGS. If you have birds in your vents, you’ll probably end up with creepy-crawlies in your home. But that’s not the end of it. Birds assemble nests in your vents, and given the large amount of stuff they use to assemble said nest, it can end up fully clogging a vent, preventing any airflow. As with rodents, a full duct cleaning from Comfortech Service Experts can eliminate any droppings, feathers, or other possible illness-carrying leave-behinds. You may also need animal control to actually remove the birds from air vents or attics.

Mice in Air Ducts

If you’ve got mice in your ducts, you should take steps quickly to remove them. Mice chew through electrical wires and leave refuse like all rodents, but they also add to their population quickly. And when they run around in the ducts, treating it like the road system of your residence, they eventually die in there. This creates an unsanitary situation, and you may notice an unsavory odor.

You might think of mice from the noises you hear – plenty of scratching and scrabbling along walls. Or you may actually see one making an escape through the heating vents in your house. You could even confirm their status by inspecting the ducts for mice leavings. Either way, if you you’re worried you have mice you have some choices. You could trap them yourself, by setting traps just inside each vent and checking them in the morning. Or you can pay for a professional exterminator.

Once you’ve verified that the mice are gone, you really should have your ductwork thoroughly cleaned by an HVAC company. If mice have been present, they will have left droppings in your ducts. Mice feces are toxic, and if you ignore them in your ducts they can make you and your family sick. Comfortech Service Experts offers duct cleaning services that will eliminate most debris from your home’s airways.

Call Comfortech Service Experts soon for a complete duct cleaning to help make sure the air you are breathing is healthy and pest-free.

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