How Do Exterminators Get Rid of Mice in Walls?–Mice are quiet. They don’t always show up in plain sight. But once they’re in, you’ll know.
You’ll hear them late at night—scratching, chewing, maybe even running through the walls. That’s when most people start Googling how to fix it. Or who to call.
Our pest control in Kansas City get this one a lot: How do exterminators actually get rid of mice in the walls?
Here’s how it works—and what to expect if you bring in an exterminator in Kansas City.
First, We Listen
Sounds strange, but that’s usually the first step. You tell us what you’ve been hearing. When it started. Where it seems loudest. That helps us figure out where the mice are nesting—and how they’re moving through the space.
Mice like dark, warm spots with cover. That means insulation. Between studs. Behind appliances. Above ceilings.
You might not see droppings or chew marks right away, especially if they haven’t gotten into your kitchen yet. But if they’re in the walls, they’re likely heading that way.
Then, We Find the Entry Points
Mice don’t just show up. They get in somehow.
A trained exterminator in Kansas City will walk the outside of your home, check the foundation, vents, doors, siding—anywhere a mouse could squeeze through.
And it doesn’t take much. A hole the size of a pencil is all they need.
We’ve seen them come in through dryer vents, under garage doors, even through gaps in brickwork. If you don’t block the entry point, no amount of traps will fix the problem.
What Happens Inside the Walls?
We don’t tear down drywall unless we absolutely have to.
Most of the time, we can handle it from the outside—set traps in attics, crawlspaces, drop ceilings, or under cabinets. Mice don’t stay deep inside walls all day. They come out for food and water. That’s when we get them.
We use a mix of traps depending on the situation. No poison that’ll leave dead mice behind the drywall. That’s the last thing anyone wants.

Good rodent control in Kansas City doesn’t just kill what’s there. It also figures out what’s attracting them—and removes it.
You Might Not See One, But That Doesn’t Mean They’re Not There
Some people call us after hearing things for weeks. They haven’t seen a single mouse—but their dog’s barking at the wall, or they keep finding insulation scattered in weird spots.
That’s common. And smart to call early. Once they’re breeding inside the house, the problem grows fast.
Mice don’t travel alone. If you’ve got one, you probably have a few. A good exterminator in Kansas City doesn’t stop at the one you saw—or heard.
What We’ve Seen
We’ve been in houses with full nests inside the walls. Shredded insulation. Urine trails. Chewed wires.
We’ve seen mouse damage cause appliance failures and electrical shorts. We’ve also worked jobs where the mice had moved into apartment walls and were traveling through shared plumbing chases between units.
That’s where pest services in Kansas City become essential. Especially if multiple tenants are reporting noise or droppings.
We’ve even seen cases where mice entered through the roof, ran the inside of the walls down to the basement, and set up shop near the water heater.
It Doesn’t End With Traps
Trapping is step one. But residential pest control in Kansas City also means sealing up holes, trimming back overgrown brush, and keeping food sealed and trash picked up.
We’ll also walk you through small changes that make a big difference—like adding door sweeps or patching gaps around utility lines.
We’ve had people call us back just to say, “We did everything you said, and they never came back.” That’s the goal.
Why DIY Doesn’t Always Work
We’ve had customers who tried everything. Sticky pads. Store-bought traps. Sound machines. They caught one or two, but the problem kept coming back.
That’s usually because the source wasn’t fixed. A hole behind the fridge. A gap in the siding. Something small that let them back in.
The best pest control companies in Kansas City don’t just treat—they investigate.
And that’s the part that matters long term.
When to Call
If you’ve heard scratching at night more than once, don’t wait. The longer mice stay, the more damage they cause—and the more likely they are to multiply.
A proper visit from an exterminator in Kansas City can stop things before it turns into a serious infestation.
We’ll figure out what’s happening. Show you how they got in. And help you keep it from happening again.
We help homeowners. We help businesses. We help people take back control from pests.
We listen. We inspect. We solve problems quickly, and we do it right the first time.

Need help now? Fill out a service request here or call us at 317-279-6474 .
We’re Green Shield Certified to protect your home or facility with expert pest control that works.
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