Mice in Walls Removal in Waco, TX

Why mice end up in walls

The inside of a wall is a protected hallway. Mice use wall cavities to move between the places they nest (a crawl space, an attic, the back of a cabinet) and the places they eat, usually the kitchen and pantry. You hear them because the wall amplifies small sounds, especially at night.

The noise usually comes from walls near plumbing: the kitchen sink wall, the wall behind a bathroom, or the wall the washer connects to. Pipes and drains pass through the floor and the top plate of the wall, and builders rarely seal those holes tight.

What a thorough job includes

• Listening and inspecting to find which walls are active and when
• Checking under sinks, behind the stove, refrigerator, dishwasher and washer for openings into the wall
• Checking the attic over the active wall and the crawl space or slab edge below it
• Traps at the openings where mice enter and leave the wall
• Sealing pipe and wire penetrations inside cabinets and behind appliances
• Sealing the outside gaps that let mice into the house to begin with
• Return visits until the sounds and fresh droppings stop

Step by step

1. You describe which walls make noise and when.
2. The technician checks the cabinets and appliances on that wall for gaps.
3. The attic and crawl space above and below get checked for runways leading into the wall.
4. Traps go at the access points inside cabinets, behind appliances and in the attic or crawl space.
5. Interior gaps get sealed once the mice are trapped out.
6. Outside gaps get sealed so new mice can’t get into the house.

Why it’s harder in Waco

Waco’s older homes are the most common source of wall noise. In pier-and-beam houses from the 1920s through the 1940s, common in Sanger Heights, Brook Oaks and East Waco according to Homes.com data, wall cavities often open straight down into the crawl space. Mice can climb from under the house into a wall without passing through any living space.

Two-story homes in Castle Heights and Woodway have another path: the attic over a one-story section often connects to second-floor walls. Mice and roof rats in the attic come down inside those walls.

Newer slab homes aren’t immune. Mice get in through weep holes or the A/C line hole, then follow the plumbing inside the walls toward the kitchen. Garage walls with a shared wall to the kitchen are a common route.

Questions to ask the technician

• Which wall cavities connect to the attic or crawl space in this house?
• Where will traps go, and will any be inside cabinets I use every day?
• Will you seal the pipe holes inside the cabinets as well as outside?
• How will you know when the walls are clear?
• If a mouse dies in a wall, how will you handle it?

Ask for a list of the gaps that get sealed. It helps if the noise comes back and you need to check what was done.

What to do while you wait

Note the times and walls where you hear activity. Look under sinks for droppings and gaps around pipes. Set a couple of snap traps inside the sink cabinet against the back wall. Don’t spray foam into every hole you find; a mouse trapped in a sealed wall may chew a new hole into a room.

The noises at night article helps you tell mice from rats or other animals, and mouse control covers the rest of the house. If the walls sit over a crawl space, see crawl space rodent control.