How to Get Rid of Mice in Spokane, WA

If you have found rice-grain droppings in a cabinet or heard scratching in the wall after dark, you likely have house mice. Getting rid of mice in Spokane is not complicated, but it is easy to do halfway. The homeowners who solve it for good do two things together: they remove the mice already inside, and they seal the small gaps that let them in. Miss the second part and you will be back at it next fall, because Spokane's cold winters keep pushing mice indoors year after year.

Step 1: Confirm it is mice

House mouse droppings are small, dark, and pointed at the ends, roughly the size of a grain of rice, and they cluster where mice feed: inside cabinets, in drawers, along baseboards, and at the backs of pantries. You may also find gnawed food packaging, a musky smell in an enclosed cabinet, and shredded paper or insulation used for nesting. If the droppings are much larger and capsule-shaped, or you see burrows by the foundation, you are dealing with rats instead, and the approach changes. Our rat control page covers that.

Step 2: Find the entry points

This is the step DIY usually skips, and it is the one that matters most. A mouse fits through a gap about a quarter inch wide, the width of a pencil. In Spokane homes, the usual openings are under-sink and utility-line gaps, dryer and stove vents with broken flaps, worn garage-door and door-sweep gaps, and cracks where the framing meets the foundation, common in older South Hill and North Side homes. Walk the inside and the outside of the house with a flashlight and note every small opening. The U.S. Centers for Disease Control publishes a useful overview of sealing up and preventing rodents that is worth a read.

Step 3: Trap the right way

Place traps along walls and runways, not in the middle of the floor, because mice travel with a wall against one side. Set them perpendicular to the wall with the trigger toward it. Use more traps than you think you need, since a few mice can mean a nest. Peanut butter works better than cheese. Check and reset daily. If trapping is not dropping the numbers within a week or two, the population is bigger than it looks, and it is worth a call.

Step 4: Seal every gap

Once the mice are being removed, close the openings with materials mice cannot chew through: steel mesh, hardware cloth, and rodent-proof sealant, not foam or steel wool alone. Pay special attention to the under-sink penetrations, the vents, and the door and garage gaps. This is the exclusion step, and it is what makes the result last. A sealed house does not refill when the next cold snap arrives.

Step 5: Clean up safely

Do not dry-sweep or vacuum mouse droppings, which can send particles into the air. Ventilate the area, dampen the droppings with a disinfectant, wipe them up, and bag them. This matters even more on rural and edge properties around Spokane where deer mice are possible, because they can carry hantavirus. See our deer mouse and hantavirus guide for the safe method.

When to call instead

DIY handles a small, early mouse problem. Call a local mice exterminator when the droppings are widespread, the trapping is not keeping up, you hear activity in the walls or attic, or you simply want it done right the first time. A pro finds the entry points you cannot, seals them properly, and removes the population on a schedule. Call 509-401-4897 for a plan with upfront pricing and no obligation.

Questions about getting rid of mice