What should I do if a mouse is scratching in the wall? - briefly
Locate and block any openings the rodent can access, then set suitable traps or engage professional pest control. Eliminate food and water sources and keep the area clean to prevent further intrusion.
What should I do if a mouse is scratching in the wall? - in detail
If you hear a small rodent scratching inside your walls, act promptly to prevent damage and health risks.
First, confirm the presence. Listen for continuous rustling, squeaking, or gnawing sounds, especially at night. Look for signs such as droppings, shredded insulation, or gnaw marks near outlets, baseboards, and vents.
Next, isolate the area. Seal any openings larger than a quarter inch with steel wool, copper mesh, or caulk. Check exterior foundations, utility penetrations, and gaps around pipes for potential entry points and block them.
Set traps or bait stations. Choose snap traps for immediate kill or live‑catch traps if humane removal is preferred. Place traps along walls, behind appliances, and near suspected pathways. Use appropriate bait—peanut butter, chocolate, or seeds—and position traps perpendicular to the wall, with the trigger end facing the wall.
If infestation persists after several days, consider rodenticides. Use only approved products, follow label instructions, and keep them out of reach of children and pets. Wear gloves when handling.
Clean and disinfect. After removal, wear disposable gloves and a mask. Remove droppings with a damp paper towel, then disinfect the area with a solution of bleach (1 part bleach to 10 parts water) or an EPA‑registered disinfectant. Dispose of contaminated materials in sealed bags.
Inspect for structural damage. Examine insulation, wiring, and drywall for chew marks. Repair compromised sections to restore integrity and prevent future entry.
If signs of extensive damage, disease, or a large population are evident, contact a licensed pest‑control professional. They can perform a thorough inspection, apply integrated pest‑management techniques, and advise on long‑term exclusion strategies.
Finally, maintain a preventive routine. Keep food stored in sealed containers, eliminate clutter, and regularly inspect the exterior for new gaps. Routine monitoring will reduce the likelihood of recurrence.