How can I chase mice out of the cellar? - briefly
Seal all potential entry points, then deploy snap traps, bait stations, or ultrasonic repellents while keeping the cellar dry and free of food sources.
How can I chase mice out of the cellar? - in detail
Identify and block all possible entry points. Inspect walls, floor joists, pipe sleeves, and vent openings for gaps larger than ¼ inch. Use steel wool, copper mesh, or expanding foam to seal cracks; apply cement or metal flashing where structural repair is needed.
Reduce attractants. Store food, pet feed, and waste in sealed containers. Sweep debris, clean spills, and keep the cellar dry by fixing leaks and improving ventilation. Remove clutter that provides nesting material.
Deploy mechanical controls. Place snap traps along walls where droppings or gnaw marks are visible, positioning the trigger end toward the wall. Use multiple traps in parallel lines to increase capture probability. Check traps daily and dispose of captured rodents according to local regulations.
Employ bait stations if snap traps prove insufficient. Load tamper‑resistant stations with anticoagulant or non‑anticoagulant rodenticide, following label instructions and safety guidelines. Position stations behind insulation, under shelving, or in concealed corners to limit non‑target exposure.
Consider electronic repellents. Install ultrasonic emitters that generate frequencies above 20 kHz; position units at opposite ends of the space for overlapping coverage. Verify that devices are rated for basement environments and replace batteries as required.
Maintain ongoing monitoring. Record trap catches, inspect for new gnaw marks, and re‑seal any fresh openings. Conduct monthly reviews for at least six months to confirm the population has been eliminated.
If infestation persists after these measures, consult a licensed pest‑management professional. They can perform a comprehensive assessment, apply targeted baits, and advise on structural modifications to prevent future incursions.