How to Mouse Proof and Get Rid Of Mice in Dryer Vents
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How to Get Rid Of Mice in Dryer Vents and Mouse Proof Your Dryer

On a cold day, is there anything better than putting on your favorite sweater or blanket, still warm fresh out of the dryer? Unfortunately, mice enjoy the warmth of your clothes dryer just as much as you do. For rodents looking for a warm place to wait out the cold, a dryer vent is one of the easiest ways to get inside your cozy home.

Can Mice Get In Through Dryer Vents?

They sure can! Mice and other pests use household dryer vents to get inside your home. Most homes with a laundry dryer inside have vents on the outside where the heat escapes. If the outside vent is uncovered or damaged, household pests can easily get inside. Once they enter through the vent, they can chew through the flexible tubing that connects to the actual appliance, giving them free access to the rest of your house.

Signs You Have a Mouse in Your Dryer Vent

Here are some clues that you may have this problem in your home:

  • Strange noises such as squeaking, scratching, scurrying or thumping sounds.
  • Inefficient or ineffective performance.
  • Your dryer smells like urine.
  • Unpleasant odors.
  • Finding small black pellets, similar to rice in size and shape – these are mouse droppings.
  • Broken or damaged vent covers on the exterior of your home or building.
  • Broken or damaged dryer vent hose.

Problems This Can Cause 

If mice or any other animal takes up residence in your laundry vent, you’ll be facing a long laundry list of problems. The phrase ‘quiet as a mouse’ is a lie, and when the sounds of noisy rodents are amplified by the thin metal and hollow sound effects of a vent, you’ll know why. 

The dryer’s efficiency will suffer if the vent is obstructed by a mouse nest or any rodent related debris and the risk of fire increases when there are blockages as well. There are thousands of dryer fires annually, and failure to clean the lint is a leading cause of fire. All that built-up dryer lint isn’t just a potential fire hazard, it can also create a pest haven. Pests coming through the exhaust vent would be very happy to find an abundant supply of soft nesting material. Rodents love to chew all the time and will gnaw on electrical cables and wiring which is what could also result in a house fire.

Other issues include the diseases rodents can transmit, the terrible smell that will result if a rodent dies in a hard to reach area, and the overall “ick” factor of dealing with this problem.

Prevent rodents in dryer vents.

Mouse Proof Dryer Vents and Laundry Rooms

Spending a few more moments rodent-proofing your home can save you more time and money. The best way to get rid of mice is to keep them from getting in:

  • Do an annual cleaning of your vent (along with a lint check each time you use the appliance). This is great to prevent general lint buildup (which can cause fires), but also to check for signs of rodents, birds, or bugs getting into the vent throughout the year. 
  • Clean up rodent attractants such as standing water, pet food, birdseed, and other food sources.
  • Seal up potential entry points; make sure the vent hood is in good repair, doors, and windows shut tightly, and that there are no gaping cracks or holes along the building foundation.
  • The outside opening of the vent is especially vulnerable but can be covered with a wire mesh cover available at most hardware stores. One thing to note is that dryer screens can cause faster lint buildup, which can be a fire hazard.
  • Use steel wool (mice can’t chew through it) and silicone caulk around the edges of the outside dryer vent and to fill other small cracks or openings you may find (don’t seal up the vent opening because the heat needs to get out!). This is easy enough to DIY, but a repairman can do this too. 
  • Use mice repellent around your home to keep mice and rats out.

Some of the most common reasons for a mouse getting into dryer vents are that the vent tube has a hole in it, the vent tube is not properly sealed against the appliance or wall, or the vent flapper on the outside of the house isn’t working properly (or it’s missing entirely). 

The vent flapper is a common culprit. As vent covers get old, the flaps can stop working, and that’s often one of the main reasons why rodents and bugs get into vents. 

You can purchase specialty products designed specifically to keep critters out, such as screens or mouse proof dryer vent covers.

How to Clean Your Dryer Vent After a Mice Infestation

If you had mice, or any other rodent living in your vent, the vent tube is likely full of gross droppings, nesting material, food crumbs, and terrible odors. We don’t recommend cleaning the dryer vent hose. The best thing you can do is fully replace it. They aren’t too expensive and are easily found at hardware stores.

It’s also important to clean the internal areas of the dryer where mice might have traveled, otherwise you might have to live with a terrible smell for months. You’ll need to unplug and pull out the unit to get access. 

Where the tube connects to the back of the dryer, use a sturdy pair of gloves to reach in and pull out any lint or leftover debris. You might need to remove the front and rear panels to get full access. Be careful, because you might find a dead mouse or disease-carrying droppings in there! We highly recommend wearing a mask. Mice can’t usually get through the ventilation system of your dryer from the lint trap and into the drum, so that shouldn’t be a problem, but look for signs just to be sure.

You should also clean and sanitize the vent where the tube connects to the house and leads outside.

Prevent Them From Coming Back With Repellent

Getting rid of mice is critical for your own health and safety. Preventing pest problems from happening again is important to protect your appliances and save you from expensive repair bills and replacement costs.

Stay Away® Rodent Repellent is 100% effective, guaranteed. Unlike lethal traps or poisons, this scent based repellent is a pest control method that is made with botanical ingredients. Mice follow their noses to find food and to detect danger — the fresh scent of essential oils in Stay Away® overwhelms their highly sensitive scent receptors, causing them to flee the area. 

Place the pouches wherever you have seen signs of rodent activity. Leave the pouches in place for a few days to allow the mice to escape, then inspect your dryer vent and surrounding area to seal up any entry points so pests can’t get inside again.

14 responses to “How to Get Rid Of Mice in Dryer Vents and Mouse Proof Your Dryer”

  1. I am going to have a heart attack, panic attack, and nervous breakdown. I am terrified infestation of anything. I need them killed quick or to leave. What do you suspect I do first?

    • Hi there!
      First you might need to step away and take a few moments to calm down. I have found that learning more about these creatures makes them less scary. You can look online for cute pictures of mice – when they are outside where they belong, they can be pretty amazing! Remember that it is important to keep mice outside though because they can cause expensive damage and spread disease. The first step when getting rid of any household pest is to try and identify where it came from so look for signs such as droppings, gnaw marks, and any openings they may have used to get into your home. Next you’ll need to clean up any mess they have made, but make sure to check your with your local health officials for guidelines and advice – the CDC has detailed instructions for cleaning up after rodents. We recommend identifying what they were attracted to in the first place to make sure they won’t want to stick around – were mice eating dog food that was stored nearby, or maybe making a nest near the warm dryer? Store food in hard-sided airtight containers to protect it from mice and make sure dryer vents have secure covers to prevent pests from getting inside. Then place a few pouches of rodent repellent in the area to make sure the mice stay away. After a few days, do another inspection and repair any other openings you may find such as gaps underneath the door, or spaces around utility lines — silicone caulk, steel wool or hardware cloth will get the job done.
      Thanks for reading!

  2. I am actually appalled that you would suggest a glue trap for anything those are by far one of the cruelest methods to get rid of rodents. How would you like to still be alive and stuck to something that everytime you moved it would rip your flesh off??? Inhuman garbage so much for a “natural” site.

    • Hi there,
      We totally get it, glue traps a sticky subject (pun intended!). Please let us know if you see any information on our site to the contrary. Perhaps you meant to post this comment to another site? Best wishes, stay safe.

  3. I just realized today, a mouse has chewed the dryer vent hose at the elbow point. I now have figured why the cats keep trying to get in the laundry room. I am going to buy a cage for the outdoor vent portion, not sure about the inside part of the dryer vent hose. So at least I know the mouse has not gotten into the house. Because we have 4 cats, but I do not want to use poison (because of cats), are the stick pads very attractive for cats? I live in Western Washington.

    • Hi Cynthia,

      I’m sorry to hear about the mouse in your dryer vent. I’m not sure if your cats would be attracted to the sticky pad, but I would suggest using a rodent repellent instead. If the mouse is caught on a sticky pad, that may make it more attractive to your cats. Even if the cats leave it alone, you will still have to dispose of the mouse and the sticky pad it is caught on, which is quite unpleasant. Botanical rodent repellent is made with ingredients that can be used in the house and around pets without worry. Use our store locator to find a retailer near you.

      Thanks for reading!

  4. Those commenting on bad scents in laundry rooms – they usually have floor drains, which have “traps” (S-shaped pipe under the floor) to keep sewer gasses from entering the house. If the water in this trap dries out, the smells come up. Dump a bucket of water in the drain. If you have a septic tank that’s over-full, even with water in the trap, gasses will bubble up.

  5. I just woke up from a nap and my wife takes me down to the laundry room as she explains to me that she heard a boom like sound and when she was done with the clothes, she smelled a dead rodent. I put my head down in there and sure enough, I can smell it. You cant smell it on the clothes, but I’ve read the advice that you furnished, so she has 3 wet loads left, should she still dry them?

    • I would recommend hanging any remaining items to air dry and then consulting with an appliance repair expert before using the dryer anymore. Also, investigate the dryer vent on the outside of your home to make sure it is covered to prevent any more pests from getting in. Thanks for reading!

  6. Just bought a house and we HAVE caught two small mice in the laundry room. Now we are noticing a really bad smell when you open the door to the laundry room. Smell is pretty bad. Left the house today for about a your and now noticing the smell as you first walk in the house. How do you get the smell gone. It’s so foul and I’m concerned that it could cause health problems. Getting ready to check the dryer vent to make sure they have gotten in the vent and died. Any help would be greatly appreciated. Thank you so much.

  7. I have a horrendous smell coming from my laundry room thank goodness it’s separate from the house and I can shut the door but I plan on moving things today and I’m scared to death of finding a dead mouse in there. Thanks for your information but it’s not what I wanted to hear of course.

    • Sorry to hear about the bad smell, but hopefully you’ll be able to resolve the issue now. Let us know how things turn out. Thanks!

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