Chipmunks sometimes get into houses, usually by accident. They sneak in through open doors, windows, or tiny cracks you might not even notice.
If you find a chipmunk in your house, it probably wandered in searching for food or shelter and just wants to leave as soon as it can.

You might be surprised, but these little creatures sometimes settle in attics or wall spaces.
When they do, they chew on wood, wires, or insulation, which can cause damage.
The best way to keep chipmunks out is to seal up openings and make your home less appealing.
If you’re curious about how chipmunks get inside and what you can do about it, let’s dig in.
How Chipmunks Get Into Houses

Chipmunks are small, quick, and surprisingly clever at finding ways into your home.
They search for food, warmth, and safe nesting spots.
You might not catch them in the act, but they slip in through all sorts of sneaky spots.
Common Entry Points
They can squeeze through tiny gaps.
Check for holes in walls, cracks in your foundation, or gaps under doors.
Crawl spaces and vents that aren’t sealed are also easy targets.
Your roof might give them a way in too.
If there are gaps near rafters or loose shingles, chipmunks can climb up and find their way inside.
Tree branches close to your house make it even easier for them to get onto your roof.
They’ll chew through weak or torn window screens.
And honestly, if you leave a door open, that’s practically an invitation.
Attractants in and Around the Home
Food smells inside your house can lure chipmunks.
They love pet food left out, birdseed, or even fallen fruit in your yard.
Warm, quiet places like attics and wall cavities are perfect shelters for them.
They’re more likely to move in when it gets cold outside.
If you have a cat, it might scare them off sometimes, but chipmunks are quick and take risks if food is easy to find.
Signs You Have Chipmunks Indoors
You might hear scratching or rustling behind walls or up in the attic.
Chipmunks stash food, so you could spot small piles of nuts or seeds near walls.
Their droppings are small and dark, usually close to nesting spots.
If you see chewed wires or insulation, they’re probably nesting nearby.
Look for little holes in your walls or floors, or dirt tunnels around your foundation.
These are all hints chipmunks have moved in.
For more details, you can check this guide on how chipmunks get in the house.
Dealing With and Preventing Chipmunks in Your Home

You might spot chipmunks in your home or yard, and they can cause a surprising amount of trouble.
Knowing what they can do to your property and pets helps you act quickly.
There are safe ways to get rid of them and steps you can take to keep them out for good.
Potential Damage and Risks
Chipmunks dig tunnels under houses, which can weaken the soil around your foundation.
That might cause small cracks or shifting if you’ve got a lot of chipmunks nearby.
They don’t usually do major damage to your home’s structure, but gardens and flower beds often take the hit.
They dig up bulbs, eat seeds, and chew on plants.
If you have pets, especially cats, chipmunks can bring in fleas or ticks that bother your animals.
They can also carry diseases like Lyme disease or salmonella, which isn’t great for anyone.
Keep an eye out for small holes near your porch, decks, or woodpiles.
Watch for damaged plants or scattered seed shells near bird feeders.
These signs usually mean chipmunks are active nearby.
Humane Removal and Wildlife Control Options
If you want to remove chipmunks safely, try using humane live traps near their tunnels or feeding spots.
Bait them with nuts, peanut butter, or seeds.
Check traps often so chipmunks aren’t stuck inside too long.
Before you set traps, check your local rules about wildlife control.
Once you catch a chipmunk, call local wildlife professionals to handle relocation.
Wear gloves when handling chipmunks—they can bite if scared and might carry diseases.
If you’re dealing with a big problem or chipmunks are close to your home’s foundation, it’s smart to call a wildlife control expert.
They can assess the situation, remove the chipmunks, and give you advice on keeping them away.
Effective Prevention Strategies
Start by sealing up every small gap and hole around your foundation. Grab some caulk or foam sealant and check spots near vents, crawl spaces, and right under doors.
Move woodpiles, rocks, and any debris away from your home because chipmunks love to hide there. If you’ve got bird feeders, try keeping them 20 to 30 feet from your house, and sweep up spilled seeds whenever you notice them.
Protect your garden beds by placing hardware cloth barriers both a few inches below and above the soil. Some people use electronic devices or commercial sprays as repellents, but honestly, you’ll get better results if you mix these with other methods.
Keep your yard clean and cut back on insects, since chipmunks eat those too. Trim plants regularly and pick up any fallen fruit or nuts—they’re basically a buffet for chipmunks if you leave them out.