How to get rid of a mouse under the floor? - briefly
Seal entry points, set baited traps or ultrasonic repellents in the cavity, and monitor until activity stops.
How to get rid of a mouse under the floor? - in detail
Identify the exact location of the rodent. Listen for scratching or scurrying sounds, use a flashlight to spot movement through any gaps, and place a piece of cardboard under the floorboard to reveal droppings or gnaw marks.
Seal all possible entry points. Apply steel‑wool or copper mesh to cracks, use expanding foam for larger voids, and install metal flashing around utility penetrations. Ensure the sealant is durable and resistant to chewing.
Set traps in the concealed area. Choose snap traps or electronic kill traps for immediate results; position them perpendicular to the wall, with the trigger end facing the mouse’s likely path. Bait with high‑protein items such as peanut butter, dried meat, or cheese.
Employ bait stations if a larger infestation is suspected. Place tamper‑resistant stations in hidden spots, fill with anticoagulant rodenticide, and follow local regulations for safe use. Monitor stations daily and replace as needed.
Consider non‑lethal deterrents. Distribute ultrasonic repellers under the floor, ensuring they cover the entire cavity. Use peppermint oil‑soaked cotton balls placed in corners, changing them weekly to maintain potency.
If traps and deterrents fail, contact a licensed pest‑control professional. Request an inspection of the subfloor structure, removal of the animal, and a comprehensive sealing plan to prevent recurrence.
Maintain a clean environment to discourage re‑infestation. Store food in sealed containers, eliminate standing water, and regularly vacuum dust and debris from crawl spaces.
Summary of actions
- Locate activity signs
- Seal cracks and openings with chew‑proof materials
- Deploy snap or electronic traps with appropriate bait
- Use bait stations with regulated rodenticides if necessary
- Apply ultrasonic or oil‑based repellents for supplemental control
- Seek professional assistance for persistent problems
- Implement sanitation and regular inspections to sustain results