How to Get Rid of Mice in Your House Humanely

6 steps 1h 30min Beginner

Mice cause more home damage than termites (chewed wiring is a fire risk). Snap traps are the most effective humane option — instant kill, no suffering. Glue traps and poisons are slow and cruel. Plus: seal entry points or they keep coming back.

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Step-by-Step Instructions

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Step 1: Find entry points (the long-term fix)

Mice fit through any hole bigger than a #2 pencil (~6mm). Common entries: garage doors, under sinks, dryer vents, attic vents, foundation cracks. Sealing these is the only permanent solution.

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Inspect with a flashlight along baseboards + utilities

Look behind appliances, in pantries, under sinks, in attic. Mice droppings mark high-traffic paths.

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Stuff steel wool into gaps

Mice can't chew through it. Pack into gaps around pipes, vents, foundation cracks. ~$8 for a pack.

$0.67/use $8 for 12 View Details
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Spray foam around steel wool

DAP DryDex or Great Stuff. Seals the gap permanently after steel wool. ~$5 per can.

$5 View Details
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Step 2: Set snap traps (humane = instant)

Standard snap traps kill instantly when set up correctly. Bait with peanut butter (more attractive than cheese). Place along walls — mice run along baseboards. Set 5-10 traps for any active infestation.

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Victor M156 wooden snap traps (classic)

Cheapest effective trap. Sensitive trigger, instant kill. ~$8 for 4.

$2.00/use $8 for 4 View Details
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Tomcat snap traps with bait cup

Plastic, easier to set than wooden. Bait cup holds peanut butter better. ~$10 for 4.

$2.50/use $10 for 4 View Details
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JT Eaton Top Loader (heavy duty)

Spring-loaded, the most reliable trap. Used by exterminators. ~$15 for 6.

$2.50/use $15 for 6 View Details
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Skip glue traps and poison

Glue traps kill slowly (mice chew off legs to escape). Poisons travel up the food chain killing predators (owls, cats). Snap traps are humane.

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Step 3: Bait correctly — peanut butter, not cheese

Peanut butter sticks to the trigger so mice can't grab and run. A dab the size of a pea is enough. Refresh weekly.

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Peanut butter (classic)

Smell is irresistible to mice. Spread a pea-sized dab on the trigger. ~$3-5.

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Chocolate-hazelnut spread (Nutella)

Some mice prefer it. Try if peanut butter isn't catching.

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Dental floss tied to a slice of bacon

Bait that requires gnawing — mouse has to pull, triggering trap. Pro trick.

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Step 4: Place traps along walls (mouse runways)

Mice don't cross open spaces — they hug walls. Place traps perpendicular to the wall with the trigger end TOUCHING the wall. Pairs of traps within 6 inches catch more.

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Perpendicular to wall, trigger end touching

Mice run along walls. They hit the trigger before they see the trap.

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Set 5-10 traps minimum

Mice are wary of new objects. More traps = higher catch rate. Don't go cheap on quantity.

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Pairs within 6 inches

If a mouse jumps over one trap, it lands on the second. Doubles catch rate.

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Step 5: Eliminate food sources

Even one open bag of dog food keeps mice coming back. Move all dry goods into glass or hard plastic containers. Take out trash daily. Clean crumbs daily.

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Glass storage containers (Pyrex, OXO POP)

Mice can chew through plastic Ziploc bags but not glass or hard plastic. ~$40 for a set.

$40 one-time View Details
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Sealed pet food containers

Pet food bags are open invitations. Store in airtight bins. ~$25.

$25 one-time View Details
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Empty kitchen trash daily

Especially food scraps. Compost goes in outdoor sealed bin.

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Step 6: Monitor and re-bait weekly

Check traps daily. Re-bait if untouched after 3-5 days. Dispose of catches with gloves. After 2 weeks of zero catches with active bait, you're clear.

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Check daily, dispose with gloves

Wear nitrile gloves. Pinch trigger, lift mouse off, dispose in sealed bag in outdoor trash.

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Re-bait every 3-5 days if untouched

Stale peanut butter loses smell. Fresh bait keeps traps attractive.

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Two weeks of zero activity = clear

After successful trapping, set traps with bait for 2 more weeks. If nothing, you got them all.

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