What should you do about mice behind a suspended ceiling? - briefly
Identify and seal all openings leading to the ceiling cavity with steel wool and caulk, then use snap traps or engage a licensed pest‑control professional to eliminate the rodents and sanitize the area.
What should you do about mice behind a suspended ceiling? - in detail
Mice residing in a suspended ceiling create health risks, structural damage, and noise problems. Address the infestation methodically.
First, confirm activity. Look for droppings, gnaw marks, shredded insulation, or nesting material in the cavity. Use a flashlight and a small inspection camera if available.
Second, seal entry points. Inspect the perimeter of the ceiling, wall penetrations, vents, and utility openings. Apply steel wool, copper mesh, or expanding foam to gaps larger than ¼ inch. Replace damaged tiles or plaster that may provide access.
Third, reduce attractants. Store food in sealed containers, clean crumbs, and eliminate standing water. Ensure garbage bins have tight‑fitting lids.
Fourth, deploy control measures inside the cavity:
- Snap traps or electronic traps positioned near walls and known pathways.
- Bait stations with anticoagulant or non‑anticoagulant rodenticides, placed in tamper‑proof containers.
- Live‑catch traps if relocation is required, checking them frequently.
Place traps at a 45‑degree angle, with the trigger end facing the wall, to increase capture rates.
Fifth, monitor and maintain. Check traps daily, replace bait, and record activity. Continue inspections for at least two weeks after the last capture to verify elimination.
Finally, consider professional assistance if the infestation persists, the cavity is extensive, or structural components are compromised. Professionals can perform thorough cavity access, apply targeted baits, and certify that the problem is resolved.