How to Get Rid of Mice

How to Identify Mice

The house mouse is the most common indoor rodent, typically about 2.5 to 4 inches long in the body with a thin, nearly hairless tail of similar length, large ears and small black eyes. Fur is usually dusty gray to light brown with a lighter belly. Mice are far smaller than rats, leave droppings the size of a grain of rice with pointed ends, and are most active at night. They tend to stay close to walls and rarely travel more than a short distance from their nest, which means activity is often concentrated in one part of the home such as a kitchen, pantry or attic.

Signs of an Mice Problem

• Small, dark, rice-grain-sized droppings along walls, in drawers or under sinks
• Gnaw marks on food packaging, baseboards, wires or stored items
• Scratching or scurrying sounds in walls and ceilings at night
• Shredded paper, insulation or fabric gathered into hidden nests
• A musty, ammonia-like odor in enclosed spaces
• Greasy rub marks or tracks along baseboards and runways

Why Mice Are a Problem

• Mice contaminate food and surfaces with droppings, urine and hair
• They can spread illness, including salmonella and hantavirus-related risks
• Gnawed electrical wiring is a real house-fire hazard
• Droppings and dander can trigger allergies and asthma
• A single pair reproduces quickly, so a few mice become an infestation fast

Why DIY Often Falls Short

A couple of snap traps from the store can catch the boldest mice, but they rarely solve the problem, because mice breed quickly and the rest of the colony stays hidden in the walls and attic. Most homeowners place traps in the wrong spots, use too few of them, or never find and seal the entry points that let mice in to begin with, so the population simply replaces itself. Over-the-counter poisons can leave mice to die inside walls, creating odor problems and risks to children and pets, and they do nothing to stop new mice from entering. Without sealing the gaps that allow access, trapping alone tends to become an endless cycle rather than a real fix.

How a Professional Handles Mice

• A licensed pest control professional will inspect to map runways, nests and every entry point
• A pro can set up strategic trapping to remove the active population quickly
• Professional treatment typically involves exclusion work that seals gaps, vents and utility penetrations
• A pro can identify hidden access points in the attic, crawl space and foundation that homeowners miss
• A professional will advise on sanitation and food storage to remove what draws mice in
• A pro can schedule follow-up visits to confirm the activity has stopped

How to Prevent Mice

• Seal gaps and cracks around pipes, vents, doors and the foundation with steel wool and sealant
• Store food and pet food in sealed metal or heavy plastic containers
• Keep counters, floors and pantries clean and clean up crumbs and spills promptly
• Declutter storage areas, basements and garages to remove nesting sites
• Keep firewood, debris and dense vegetation away from the foundation
• Take out trash regularly and use bins with tight-fitting lids

Mice FAQs