What to do about mice under a stretched ceiling? - briefly
Seal any gaps in the ceiling and surrounding structure, then place appropriate snap or live‑catch traps along known pathways; if the infestation persists, engage a professional pest‑control service.
What to do about mice under a stretched ceiling? - in detail
A rodent presence beneath a tensioned ceiling requires systematic action.
First, confirm activity. Look for droppings, gnaw marks, urine stains, and nesting material in the space above the ceiling panels. Use a flashlight and a flexible inspection mirror to trace pathways.
Second, locate entry points. Examine the perimeter of the ceiling for gaps around ducts, pipes, wiring, and seams. Pay special attention to gaps larger than ¼ inch, as mice can squeeze through openings as small as ½ inch.
Third, seal openings. Apply steel wool or copper mesh to fill small cracks, then cover with a durable sealant such as expanding polyurethane foam or cement‑based mortar. For larger gaps, install metal flashing or hardware cloth secured with screws.
Fourth, implement control measures. Choose one or more of the following:
- Snap traps placed perpendicular to walls, baited with peanut butter or chocolate.
- Live‑catch traps, checked frequently and released at least 100 miles from the building.
- Electronic traps that deliver a lethal shock.
- Rodenticide stations, positioned out of reach of children and pets, following label instructions.
Fifth, manage attractants. Remove food sources by storing waste in sealed containers, cleaning crumbs, and sealing pantry doors. Reduce water availability by fixing leaks and draining standing water.
Sixth, monitor progress. Inspect traps and seals weekly for new activity. Replace or reposition traps as needed, and re‑seal any fresh openings discovered.
Seventh, consider professional assistance if infestation persists, if access to the ceiling cavity is unsafe, or if structural damage is suspected. Pest‑control specialists can provide heat treatment, bait‑station placement, and comprehensive exclusion work.
Finally, maintain long‑term prevention. Schedule periodic visual inspections of the ceiling cavity, keep the surrounding area tidy, and ensure that any renovations or repairs include proper sealing of penetrations. Consistent vigilance prevents re‑infestation and protects the integrity of the ceiling system.