What should I do if mice are scratching under the floor? - briefly
Locate and block all holes or cracks in the foundation, walls, and floorboards. Place snap traps or bait stations and consider hiring a licensed exterminator to eliminate the infestation.
What should I do if mice are scratching under the floor? - in detail
If you hear persistent scratching from beneath the floorboards, act promptly to prevent damage and health risks.
First, confirm the presence of rodents. Look for droppings, gnaw marks, or nesting material in crawl spaces, basements, and attic vents. Use a flashlight to inspect any accessible gaps.
Next, eliminate entry points. Seal cracks, holes, and gaps larger than ¼ inch with steel wool, copper mesh, or expanding foam. Pay special attention to utility penetrations, pipe sleeves, and foundation seams.
Then, set up control measures. Choose one or more of the following:
- Snap traps placed along walls, behind furniture, and near suspected pathways; bait with peanut butter or dried fruit.
- Live‑catch traps if relocation is preferred; release at least one mile from the property.
- Electronic traps that deliver a quick, humane kill.
- Bait stations containing anticoagulant rodenticides, used only by licensed professionals to avoid accidental poisoning.
Maintain a clean environment to deter future activity. Store food in sealed containers, clean crumbs promptly, and manage garbage with tightly fitting lids. Reduce clutter that offers shelter, especially cardboard boxes and piles of fabric.
Finally, monitor progress. Check traps daily, replace bait as needed, and re‑inspect sealed openings weekly for new signs of intrusion. If activity persists after several weeks, enlist a pest‑management specialist to conduct a thorough assessment and apply advanced control methods.
By following these steps—verification, exclusion, trapping, sanitation, and ongoing observation—you can effectively address scratching noises caused by rodents under the flooring and protect the structure and occupants.