How can you get rid of mice under a house? - briefly
Seal all gaps and cracks in the foundation, eliminate food and water sources, and place snap traps or bait stations in the crawl space. Keep the area dry and inspect regularly to detect any new activity.
How can you get rid of mice under a house? - in detail
Eliminating rodents that have taken up residence beneath a residence requires a systematic approach.
First, identify all possible entry points. Examine the foundation, crawl space vents, utility penetrations, and any gaps around pipes or wires. Use a flashlight and mirror to view hidden areas. Mark each opening and measure its size.
Second, seal openings. Apply steel wool or copper mesh to small cracks, then cover with an expanding polyurethane sealant. For larger gaps, install metal flashing or concrete patch. Ensure vents are fitted with mesh screens of at least ¼‑inch aperture to prevent entry while maintaining airflow.
Third, deploy control devices. Choose from snap traps, electronic traps, or multi‑catch live traps, positioning them along walls, near suspected pathways, and close to food sources. Bait with high‑protein items such as peanut butter or dried meat. Replace or reset traps daily until activity ceases.
Fourth, use bait stations if infestation is severe. Place tamper‑proof stations in concealed locations, following label instructions for dosage and safety. Monitor stations regularly and dispose of dead rodents according to local regulations.
Fifth, modify the environment to discourage habitation. Keep the crawl space dry by installing a vapor barrier and improving drainage around the foundation. Remove debris, wood piles, and vegetation that provide shelter. Store firewood away from the house and elevate it off the ground.
Sixth, consider natural predators. Encourage barn owls or hawks by installing perches or nesting boxes near the property. Maintain a clean perimeter to reduce attractants that could deter beneficial wildlife.
Seventh, evaluate the need for professional assistance. When sealants fail, traps prove ineffective, or the population exceeds a few dozen, licensed pest control operators can apply rodenticides or specialized exclusion techniques safely and legally.
Finally, implement a maintenance schedule. Inspect the foundation quarterly, replace worn sealants, and reset traps during seasonal peaks (spring and fall). Consistent vigilance prevents re‑infestation and protects the structural integrity of the building.