How to get rid of mice in walls and ceilings?

Set traps inside any drop ceilings and at points, like plumbing and heating penetrations, where mice can exit the ceiling in the same way as in Step 2. Set traps inside a void between ceiling joists as necessary. read more

Some mice will choose to live outside a structure, but will always be close enough to reap the benefit of food sources. Within the walls of a house, few predators are an issue, though rats will kill mice and take over their territories. House mice are territorial. Groups consist of a male and up to three females. read more

5 Gallon Bucket. Fill it half with water and put wood chips or styrofoam peanuts on top - you want to hide the water. Put a dallop of peanut butter in the bucket. The mice will jump in but since they can't touch the bottom, won't be able to jump out. They will swim around until they get tired and drown. Empty the bucket every few days. read more

Check traps daily to dispose of bodies and refresh any old or missing baits. Handle the traps with rubber gloves, since mice corpses might carry disease organisms. Snap traps offer the best chance of removing mice from the ceiling. Poison baits eliminate the mice, but the mice might expire in walls or tight spaces where you can't remove the bodies. read more