J.L.
Snap traps and steel wool or aluminum foil where you think they are coming in. Keep cat food in a airtight container. Don't spend the money on an exterminator. I called a few and they told me they can leave the box traps but because mice can come into the smallest holes or open doors they couldn't help find where they were coming from. I found where mine were coming in . Used the snap traps with peanut butter and used the aluminum foil to cover the wholes.