Ridding a home of mice is only a temporary solution if nothing is done to prevent new mice from invading. Mice enter homes in search of shelter, food, and water. The first step to repel mice is to remove these reasons for entering. Seal up all food, sweep up crumbs, and mop up standing water. Remove stacked shoeboxes and newspaper that provide ideal nesting areas for mice. A clean and sanitary environment goes a long way in an effort to repel mice. Mice can fit through holes that are only a quarter of an inch in diameter. Inspect the foundation of your home to seal up any cracks the mice might use for entry. Steel wool can be used to plug up holes surrounding the entrance of pipes and wires.
There are multiple household products that repel mice. Cotton balls can be soaked in peppermint oil, and then placed near areas known for mice activity. Cayenne pepper may be sprinkled near mice entries, and ammonia placed in plastic bottle caps can be placed in cupboards where mice are known to visit. The odor of a housecat has also been known to repel mice.
Many commercial mice repellents exist. Highly concentrated products containing peppermint and spearmint oils are the most successful commercial mice repellents. Other repellents smell like a mouse’s common predator, such as a fox. Devices that emit supersonic sound waves have proven useful for many homeowners, though they should be used in conjunction with other methods. A combination of sanitary living areas, sealing all possible entries, and natural or commercial repellents, should repel mice looking for a new home to infest.