Yes, dryer vents are a common rodent entry point, either when the vent itself is missing or there are gaps around it. A mouse needs only a dime-sized hole, and both routes routinely provide one.
Finding any kind of rodent in your home is startling. And it might leave you asking: how did it get in here in the first place? You might have heard that dryer vents are a common way inside, and that’s true, for a couple of reasons.
If the vent is missing, they can go inside easily. It is, after all, a hole in the wall. The other is that if there are gaps around the vent, they can get in those. Installers often cut openings generously and seldom seal the perimeter tight. There are also often wall penetrations nearby for pipes, wires, and cables. If you see a crescent of daylight above or around the duct, that’s often enough for a mouse to get in.
Mice go inside in the fall to seek shelter from the winter. You can imagine that warm air coming out of a dryer vent would be seen as a welcome sign. Once inside, mice and other rodents will often spend time inside walls, ceilings, crawl spaces, and dryer ducts. If they get into the ductwork in particular, that’s a problem because it restricts airflow and creates fire risks.
To prevent this problem, the first thing to do is make sure the vent is in good shape. Then seal around the vent and any nearby utility penetrations so it’s not easy for rodents to get in. This should be done with chew-resistant materials rather than a can of spray foam that mice can bite into. And if you’ve already seen evidence of rodents inside, it’s time to call a professional. It’s very hard to remove them on your own.
If you are dealing with a rodent infestation in your laundry room, then Mosquito Squad of Worcester can help. Mosquito Squad checks the vents and every other entry point, pairing removal with exclusion services and annual inspections, with monthly rodent protection available through Complete Home & Yard coverage.