Confirm the mouse is in the wall by listening for scratching, squeaking, or movement
Seal all food in airtight containers
Remove pet food, crumbs, and garbage from accessible areas
Set snap traps along walls near likely entry points
Use bait such as peanut butter or seeds on the traps
Place traps in attic, basement, or behind appliances if accessible
Check and reset traps daily
Seal exterior gaps, cracks, and holes with steel wool and caulk
Repair damaged vents, screens, and weather stripping
Close openings around pipes, cables, and utility lines
Keep vegetation, firewood, and debris away from the house
Use a flashlight to inspect for droppings and entry points
Wear gloves when handling traps or cleanup materials
Dispose of dead mice promptly and safely
Clean and disinfect affected areas after removal
Call a licensed pest control professional if the mouse cannot be reached or removed
Call a professional immediately if there are multiple mice or repeated infestations