When you're on vacation, traveling the open road, or staying in campgrounds or national parks, your RV is your home. It keeps you and your family safe, warm, and dry. It's your travel lodging, roadside sanctuary, and sightseeing shelter.
Unfortunately, your RV is also a safe, warm, and dry location for mice, squirrels, chipmunks, and other rodents, especially when it's parked during the off-season.
These pesky critters may be cute. But if they make their home inside your RV, they can do a lot of damage and create quite the mess.
So what's the best way to repel mice? How do you make your camper or RV 100% mouse-proof?
Well, that's precisely why we're here.
Below, you'll find a comprehensive breakdown of why mice and rodents are such common RV problems, what to do when you find mice inside your rig, and ultimately, how to keep mice out of RVs for good.
Why Rodents Love Stored RVs?
Rodents love parked, winterized RVs because they're warm, dry, and quiet places, especially during the dead of winter. Compared to roughing it in the wild, the inside of your RV is practically a 5-star Ritz-Carlton hotel, but for mice.
If you don't take the steps to prevent mice infestations by removing food containers, cleaning, and putting out mouse traps, there's a good chance you'll open your RV in the spring to find you've got squatters.
But the real problem isn't the unwanted company. It's that mice infestations can cause a lot of damage.
Mice will eat and destroy almost anything, from wires and insulation to paper, plastic, and fabrics. They'll also leave a lot of nasty droppings and urine all over the place, dirtying or damaging your furniture and other surfaces.
So if that's something you want to avoid, keep reading! Here’s how to keep mice and rodents out— for good!
How Do Rodents Get Into Your RV?
Rodents can get into your RV from almost anywhere. They don't even need a big gap or crack to get in.
Mice can squeeze through small openings less than the size of a dime, which means that places like your roof vents, openings, or gaps in your RV's undercarriage, around your slide-outs, and plumbing openings all represent potential entry points for pests like mice.
That said, the most important thing you can do is to make sure mice can't get in your RV in the first place.
How To Deter Mice And Prevent Mice Infestation
Here are the more practical steps to prevent mouse infestations.
But even when you follow these steps, you still want to be vigilant and detect signs of mice before they become an all-out infestation.
Always keep an eye out for droppings, shredded insulation, or chewed wires, which are usually reasonable indications that mice have been active.
Step 1: Seal Every Entry Point
Since keeping mice out is the best way to prevent infestations, the first thing to do is perform a thorough inspection of the RV.
You'll want to check the undercarriage, storage areas, and anywhere where water, septic, or electrical lines go through walls, floors, or the roof. These are all prime locations where mice can find openings to squeeze through.
We recommend using expanding spray foam or sealant tapes, like TitanPatch Pro, to provide longer-term coverage and protection from pests.
Pro Tip: There are different types of spray foam available at stores like Home Depot or Walmart. But for the best results, look for a spray foam explicitly designed for mice and pests. Otherwise, there's a good chance they'll just eat their way through it.
Step 2: Remove All Food Sources
Another critical step is to make sure to leave your fridge, cupboards, and pantry cabinets empty when storing your RV for the winter. Remove any food containers, or make sure food is stored in sealed, airtight containers.
Unsealed or open food left in your RV won't only attract mice. It can also give them something to live off, allowing them to thrive throughout the winter.
You also want to make sure that there's no trash or garbage left in the RV. Even if it's not food, mice can also chew up and use paper, cardboard or plastic as nesting materials. So if it's trash and doesn't need to remain in the RV, remove it!
Finally, we recommend vacuuming and wiping down all surfaces when putting your RV into storage, just to make sure there are no small food crumbs left anywhere.
Step 3: Use Rodent Repellents the Right Way
To repel mice, RV owners have two choices. They can either use natural mouse repellents or commercially-made products.
Natural repellents include things like peppermint oil and other essential oils, dryer sheets, moth balls, or cedar blocks. Mice tend to really dislike these smells. So, placing these natural products around your RV before closing it up can help keep mice away.
However, commercial products do tend to be a bit more effective. You can purchase RV-specific rodent sprays or ultrasonic repellent devices, which can be highly effective at keeping mice away and preventing rodent infestations.
If using natural repellents, just make sure to check the RV more often and to refresh or replace them periodically while the RV is in storage.
Step 4: Set Up Traps (If You Already Have Mice)
If you've already got mice running around inside your RV, repellents can work. But since they've likely already built a nest, you may also need to use traps to catch, kill, and remove the infestation, one mouse at a time.
Snap traps are the most basic yet most effective tools to use. Simply bait a few snap traps with cheese, peanut butter, or food, and you can usually catch mice within a few hours. You can also purchase sticky traps or electronic traps, which some people consider less cruel.
On another note, you might be thinking about using a mouse or rat poison. These can be effective at killing mice. But we don't recommend using them.
Poisons are dangerous if pets or children get their hands on them. Plus, it usually takes a bit of time before the mouse dies after it consumes the poison. So it will likely eat the poison, then scurry off into a small, enclosed space to die.
And let me tell you, dead rodents inside your RV walls are just as bad as having them in there alive. When they die, they smell, which can attract more pests and other problems.
That said, traps, whether lethal or non-lethal, are the best way to go.
Step 5: Clean and Prepare Before Long-Term Storage
Mice are always on the lookout for food. So any type of food product can attract mice. Whether it's whole boxes of dried goods or crumbs scattered at the back of your cupboards, if it's there, you can guarantee a mouse will find it.
That's why it's essential to do a deep clean every year before putting your rig into storage.
Clean all of your cupboards, cabinets, and drawers. Remove as much as possible from your storage compartments. And wipe down every surface with a multi-surface cleaning product before closing the door for the winter.
Pro tip: Store essential items, valuables, and paper documents in a FireShield Pro Bag to protect from pests. However, fireproof bags don't just protect against mice. They also protect against fire, water, smoke, dust, dirt, and debris. Learn more about FireShield Pro Storage bags here: Best Fireproof Document Bags
Step 6: Maintain a Rodent-Free Environment
Because storage RVs and campers are warm and dry, they're prime locations that mice and other rodents love to get into during the winter. So it's essential to realize that pest prevention isn't a one-time ordeal. It's an ongoing process.
Even during the summer when you're using the RV, you should check around periodically for signs of mouse droppings and gnaw marks. Keep your engine compartment and storage areas clean and well-lit whenever possible. And never pack them with too much stuff since that can offer pests a safe location to hide out of sight.
You might also want to consider placing a motion-activated light, vibration sensors, or ultrasonic repellents around the RV to help you maintain a rodent-free environment all year long.
Image courtesy of Kirill Sh @ Unsplash.com
Frequently Asked Questions - How To Keep Mice Out And Make Your RV 100% Mouse Proof
Preventing mice infestations isn't all that hard or complicated. But it is an ongoing process, which is why we encourage you to inspect your RV a few times per year, use expanding foam or RV sealant tape to block all potential entry points, and use traps to capture any pests that do make their way inside.
Now, before we go, here are some of the most frequently asked questions we hear about
What’s the best way to keep mice out of RV storage areas?
Blocking all access points is the best thing you can do to keep mice out of your storage compartments. But the problem is that mice really can get in through the tiniest openings. So, in addition to sealing all potential entry points, we recommend using traps and repellents in these areas even after you've sealed them up.
Do peppermint oil and dryer sheets really work?
Yes, peppermint, dryer sheets, and other natural repellents do work to keep mice away. However, commercially-made products and repellents are usually a bit more reliable and effective as a longer-term solution. So if you want to use natural alternatives, we encourage you to use them alongside traps for the best results. And, be sure to check them periodically throughout the winter.
How can I tell if mice are already inside my RV?
Once they build nests, it's usually pretty easy to see signs of mice. They might leave scratches or gnaw marks. And you'll usually see droppings and urine everywhere they've been. You may also find shredded cardboard, paper, or plastic, which mice generally use as nesting materials.
Should I use poison or traps in my RV?
Traps are the better option. When you use poison, the mouse may scurry off and die somewhere unreachable, maybe inside your wall paneling. If that happens, that dead mouse can create quite the smell, which can attract even more mice and other pests.
How do I seal small openings in my RV?
We recommend using RV-specific pest control expanding foam products to seal small openings around your RV. You can also use products like steel wool or RV sealant tapes to block openings and prevent mice from being able to get inside.
Can rodents damage electrical systems in RVs?
Yes! Rodents can chew wires, insulation, plastic, and just about anything else they can get their little fangs on. A mouse infestation can cause a lot of damage to your RV. That's why we strongly encourage all RV owners to watch for signs of mice, take the steps to stop them from getting inside your RV, and use repellents to prevent infestations in the future.