What should I do if mice are running behind drywall? - briefly
Locate and seal all possible entry points, then use snap traps or bait stations in the affected wall cavities, and if the infestation persists, contact a licensed pest‑control professional.
What should I do if mice are running behind drywall? - in detail
Mice concealed within wall cavities create noise, damage, and health risks. Start by confirming their presence: listen for scratching or squeaking, look for droppings near baseboards, and inspect for gnaw marks on drywall seams or vent covers.
Next, locate entry points. Examine the exterior for gaps around utility penetrations, foundation cracks, and openings around doors or windows. Inside, check for holes in insulation, unfinished openings around pipes, and any damaged drywall sections. Seal each opening with steel wool, copper mesh, or expanding foam designed for pest control, then cover with a durable material such as sheet metal or cement board.
After blocking access, set traps directly in the affected wall cavity. Use snap traps or electronic devices baited with peanut butter, sunflower seed, or dried fruit. Place traps through small access holes drilled in the drywall, spacing them a few inches apart along the suspected path. Check traps daily, dispose of captured rodents, and reset as needed.
If bait stations are preferred, choose tamper‑resistant units and position them near entry points, ensuring they are inaccessible to children and pets. Rotate bait types to avoid bait aversion.
When evidence of infestation persists despite these measures, enlist a licensed pest‑management professional. They can perform cavity inspections with borescopes, apply rodent‑specific baits, and install barrier systems that integrate with the home’s structure.
Finally, implement preventive practices: maintain a clean kitchen, store food in sealed containers, keep garbage covered, and trim vegetation away from the building’s foundation. Regularly inspect the exterior for new gaps and repair any water damage that could attract rodents. These steps collectively eliminate current activity and reduce the likelihood of future incursions behind wall coverings.