Parking and checks: before it sits, and before you go.
Where you park decides how many ways up there are. A quick look before it sits, and again before you use it, catches a problem early.
Where to park
The mouse-proof standard. Every RV and motorhome can be made mouse-proof. Seal for the smallest invader, the mouse, and you’ve closed the gaps the bigger ones use too. What the standard means →
- Concrete or gravel
Park on concrete or gravel when you can, not in grass.
- Away from the tree line
In a park or storage lot, pick a spot toward the middle rather than at the edge of the woods.
- Clear around it
Keep the grass short and clear away debris piles around the RV.
- Trim branches
Trim branches that reach the roof.
The checks
Before it sits
- Check the guards on the cords and hoses, the mesh on the vents, and the seals on the storage bays.
- Raise the jacks if you can, or fit their sleeves. Put the tire covers on.
- Leave a small pile of three nuts or seeds in a storage bay or on the floor. If it has moved or is gone when you come back, something got in.
- Set up a motion-activated trail camera inside or in a storage bay.
While it sits
- Check on it when you can: the nut pile, the camera, the guards and the tire covers.
Before you use it again
- Air it out before you go through it: open the doors and windows first, then follow the clean-up steps below if you find droppings.
- Look over the engine compartment, the wiring and the storage bays for chewed wires or hoses, droppings and nesting material.
- Check the nut pile and the camera.
- Take the tire covers off and stow the guards before you drive.
Found signs? Here’s what to do
Catch the ones inside once
Seal and guard first. Then catch any mice still inside with enclosed snap traps, set inside the RV along the walls and in the storage bays, out of reach of kids and pets. Traps go alongside sealing, never instead of it.
Never poison. A poisoned mouse can crawl off and die inside a wall or under the floor, where you can’t reach it, and the smell can ruin an RV. An enclosed trap comes out with the mouse in it.
Clean up droppings safely
- Open doors and windows for 30 minutes first, and stay out while it airs.
- Put on rubber or plastic gloves.
- Don’t sweep or vacuum droppings. It puts dust into the air.
- Spray droppings and urine with a disinfectant, or 1 part bleach to 9 parts water, until very wet. Let it soak 5 minutes.
- Wipe up with paper towels and throw them out in a covered trash can.
- Mop or wipe the area with disinfectant, then wash your gloved hands, take the gloves off, and wash your hands again.
Source: CDC, How to Clean Up After Rodents. Asthma or allergies at home? Mouse allergen settles in household dust, and NIEHS researchers linked higher levels at home to more asthma symptoms in people with allergies (Salo et al., 2009). Sealing the gaps and cleaning up this way both help.
Starting a motorhome that has been sitting? CDC says to open the hood and doors and let the engine compartment and cab air out for 20 minutes, check the air intakes and filters before you start the engine, and disconnect the battery before you look through the engine compartment (CDC). Not sure about the engine side? Ask a qualified mechanic.
CDC notes that rodents may build nests in cars, trucks, campers and other vehicles, especially ones that aren’t used often, and says to clean up droppings and nests the safe way (CDC)(CDC).
Pro matching is in Southwest Florida for now. The guides work anywhere. Not sure what you’re looking at? Send a photo.
The rest of the RV
- Ground connectionsEvery one is a ladderPower cords, water and sewer hoses, tires and stabilizer jacks all touch the ground. Guard each one, or lift it.Read the guide
- OpeningsClose it or cover itClose the openings that don’t need to be open, and cover the ones that do with removable metal mesh.Read the guide
Sources
- Centers for Disease Control and Prevention (CDC), How to Clean Up After Rodents (including How to Inspect and Disinfect a Vehicle)
- Centers for Disease Control and Prevention (CDC), Hantavirus Prevention
Facts on this page were checked against each source on October 30, 2026.
Find the gaps. Seal them for good. Catch the ones inside once. No poison, ever.