How do I Keep Rodents Out of an RV?

There is no full-proof way to stop rodents from entering a unit but you can make the RV less inviting to them by parking it on a hard surface (where possible) and giving the unit a thorough cleanse when absent for a long time or before putting it in storage. Discard any loose papers as rodents might use these as nesting places and be sure to examine the RV’s underside and vents to verify that there are no areas where mice or squirrels can enter. Fill any gaps with expandable foam (don’t use mesh or anything that animals can gnaw or chew). Of course, there are various battery-powered ultrasonic devices and botanical products on the market to help to deter rodents. Peppermint oil is said to work.