How can you catch a mouse behind drywall? - briefly
Place snap or live traps baited with peanut butter or cheese at visible holes, gaps, or along the baseboard near the suspected wall cavity and check them daily. After removal, seal all entry points with steel wool and caulk to prevent further intrusion.
How can you catch a mouse behind drywall? - in detail
Locating a rodent that has taken refuge inside wall cavities requires a systematic approach. Begin by listening for scratching or scurrying noises, especially at night. Use a flashlight to inspect any visible gaps, vent covers, or loose panels. Mark the area where activity is strongest.
Create an access point without causing extensive damage. Cut a small opening—approximately 2 inches square—in the drywall closest to the identified activity. Insert a flashlight or a thin inspection camera to confirm the animal’s presence and position.
Choose a trap suitable for confined spaces. Snap traps, electronic traps, or small live‑capture cages work effectively when placed directly against the interior wall surface. Secure the trap with adhesive tape or a zip tie to prevent displacement.
Select bait that appeals to mice: peanut butter, small pieces of cheese, or bits of dried fruit. Apply a pea‑sized amount to the trigger mechanism. Position the baited trap so the mouse must reach into the cavity to retrieve it, ensuring the trigger will activate.
Set multiple traps if the infestation is extensive, spacing them 6–12 inches apart along the wall cavity. Check traps daily; remove captured rodents promptly, disinfect the area, and replace bait as needed.
After successful capture, seal the entry point. Apply steel wool or copper mesh to fill gaps, then cover with joint compound or a new piece of drywall. Inspect surrounding exterior walls for additional openings and seal them with caulk, weatherstripping, or hardware cloth.
Maintain a clean interior environment: store food in sealed containers, eliminate clutter, and keep garbage bins covered. Regularly inspect for fresh signs of activity to prevent re‑infestation.