How to Spot Early Signs of Mice Infestation in Your House

Mice are prolific breeders and a small problem can quickly become a full infestation if not tackled early on. The presence of droppings — small, dark pellets in the kitchen cupboards, under the sink, along baseboards, in the garbage — is one of the first signs. You may also find gnaw marks in food wrappers and packaging, furniture or wiring because mice gnaw on things to prevent their teeth from growing too long.

Strange noises and smells are also strong tip-offs. Scratching sounds in the wall or attic (most active at night when the mouses are climbing and foraging. A powerful, pungent scent of urine in dark, secluded areas may indicate heavy rodent traffic. If you have pets, you might see them pawing or sniffing around places where the mice are hanging out.

Lastly, check for nesting material, such as shredded paper, fabric or insulation in dark spaces, such as an attic or basement. Grease smudges along walls, left by mice rubbing their coats as they go, are another clue. Noticing these warning signs early on gives you opportunity to act fast—with setting traps, blocking access points or contacting a pest control professional before the problem gets out of control.