To get rid of mice, you need a mix of cleanup, blocking entry points, and smart trapping, done consistently over a couple of weeks. Here’s a practical, home-friendly blueprint.

Quick Scoop

  • Cut off food, water, and nesting spots so your home stops feeling like a mouse hotel.
  • Seal entry gaps, then set several traps in the right places (walls, behind appliances, dark corners).
  • Clean and disinfect safely after activity drops, and keep up prevention so they don’t come back.

Step 1: Confirm you really have mice

Look for:

  • Small dark droppings (like black grains of rice) along walls, under sinks, in cabinets, or pantries.
  • Gnaw marks on food packaging, baseboards, or furniture legs.
  • Scratching or scurrying sounds at night, especially in walls, ceilings, or behind appliances.
  • Musky/ammonia-like smell in enclosed areas (closets, under sinks, behind the stove).

If you see large droppings and big bodies (over 7–10 inches), you might be dealing with rats, which need slightly different tactics.

Step 2: Remove what attracts them (food & shelter)

Before trapping, make your home less inviting so traps work better and fewer new mice show up. Do this in the kitchen and food areas:

  • Store grains, snacks, pet food and bird food in metal, glass, or heavy plastic containers with tight lids.
  • Don’t leave pet food out overnight; pick up bowls and wipe any spills.
  • Wipe counters, sweep floors, and clean under the stove and fridge to remove crumbs and grease.
  • Take out trash regularly and use bins with tight-fitting lids.

Reduce nesting spots:

  • Declutter garages, basements, attics, and closets; mice love piles of boxes, fabric, and paper.
  • Store fabrics, blankets, and soft items in tough plastic bins instead of open shelves or bags.
  • Remove cardboard piles and loose paper that can be shredded into nesting material.

Outdoors, keep shrubs and branches trimmed back from your foundation and remove rubbish piles near the house to reduce shelter close to entry points.

Step 3: Seal how they’re getting in

You’ll keep losing the battle if new mice can walk right back in. Common entry points:

  • Gaps around pipes under sinks, washing machines, and behind toilets.
  • Spaces around cables, vents, utility lines, and dryer vents.
  • Cracks in foundations, gaps under doors, and around garage doors.

How to seal:

  • Fill small holes with steel or copper mesh plus sealant/caulk so they can’t chew through.
  • Use weatherstripping or door sweeps on exterior doors if you can see daylight under them.
  • For larger gaps, use a combination of backer rod (foam) plus sealant, or cement/mortar outside.

Aim to seal after you’ve started trapping, not before you’ve addressed mice already inside. That way you don’t just trap them in walls without a plan.

Step 4: Trap smart (not just more, but better)

Most home infestations can be handled with a good trapping strategy.

Types of traps

  • Snap traps
    • Kill quickly if set correctly.
* Best bait: peanut butter, seeds, chocolate, hazelnut spread, or dried fruit (better than cheese).
  • Electric traps
    • Deliver a quick, lethal shock, often cleaner and less messy for some people.
  • Live (humane) traps
    • Catch-and-release style for those who don’t want to kill mice.
* You must release them far away from your home (check local rules) or they’ll return.

Glue traps are widely discouraged because they can cause prolonged suffering and are messier to deal with.

Where and how to place traps

  • Place traps where mice travel: along walls, behind the fridge or stove, under cabinets, near trash cans, and in dark corners.
  • Put the baited end of snap traps right against the wall so a mouse naturally runs into it.
  • Use several traps at once, spaced roughly 0.5–2 meters apart in active areas, not just a single trap in the middle of the room.
  • Wear disposable gloves when handling traps to reduce human scent and for hygiene.

Check traps daily, dispose of any dead mice promptly, and reset or replace traps to keep them in good working order.

Step 5: Consider (careful) use of baits and poison

Poison is usually a last resort because of safety and the risk of mice dying in walls. If you decide to use it:

  • Use tamper-resistant bait stations designed for mice, not rats, and lock the bait inside.
  • Place stations near suspected entry points, along walls, and near feeding areas, but out of reach of children and pets.
  • Understand that common rodent baits use anticoagulants (blood thinners) that kill mice over several days, not instantly.

Poison may be illegal or restricted in some areas or building types; if in doubt, contact a professional pest service.

Step 6: Clean up safely after activity drops

Mouse droppings and nests can carry pathogens, so treat cleanup as a health step, not just tidying. Safe cleanup basics:

  • Ventilate the area for 30–45 minutes before cleaning by opening windows/doors.
  • Do not sweep or vacuum dry droppings or nests; this can send particles into the air.
  • Wear disposable gloves and, ideally, a mask while cleaning.
  • Spray droppings and nests generously with disinfectant or a bleach solution (1 part bleach to 10 parts water) and let it soak for 5 minutes.
  • Wipe up with paper towels or disposable cloths and seal everything (including gloves and rags) in a plastic bag before putting it into an outdoor bin.

Afterward, wash your hands thoroughly even if you wore gloves.

Step 7: Keep them from coming back

Once you’ve gone a couple of weeks without signs of new droppings or noises, shift to “maintenance mode.” Ongoing habits:

  • Keep food sealed, trash lidded, and pet food picked up at night.
  • Maintain a regular cleaning schedule in kitchens, pantries, garages, and basements.
  • Periodically inspect the exterior for new gaps around pipes, vents, or doors and seal them quickly.
  • Trim vegetation and remove debris around the house so there’s less cover near your walls.

If activity returns or the infestation seems large, it’s reasonable to call a professional pest control company for a full inspection and tailored treatment plan.

Simple “game plan” you can follow this week

  1. Day 1–2: Deep-clean kitchen and food areas, store food in sealed containers, remove clutter in key rooms.
  1. Day 2–3: Inspect indoors and outdoors for droppings, gnaw marks, and entry points; note where you’ll place traps.
  1. Day 3: Buy snap traps (and optional live/electric traps), plus bait like peanut butter or chocolate.
  1. Day 3–4: Set multiple traps along walls and in high-activity spots; start sealing obvious gaps that don’t trap mice in.
  1. Day 4–14: Check and reset traps daily, gradually seal additional entry points, and keep surfaces crumb-free.
  1. After 2 quiet weeks: Do a careful, disinfectant-based cleanup of nesting areas and droppings, and keep up prevention habits.

Information gathered from public forums or data available on the internet and portrayed here.