What should you do if a mouse is scratching under the floor in an apartment building?

What should you do if a mouse is scratching under the floor in an apartment building? - briefly

Notify the building’s management or landlord at once so they can schedule professional pest control and seal any gaps allowing entry. Meanwhile, place snap traps or bait stations near the noise source and eliminate food sources to prevent further activity.

What should you do if a mouse is scratching under the floor in an apartment building? - in detail

If you hear persistent gnawing sounds coming from the space beneath the floorboards, immediate action is required to prevent damage and health risks. First, verify that the noise originates from a rodent by listening for scratching, squeaking, or the sound of scurrying. If confirmation is reasonable, proceed with the following steps.

  1. Notify the property manager or building superintendent promptly. Provide details of the location, frequency, and duration of the activity. Written communication creates a record and triggers the building’s maintenance protocol.
  2. Request a professional inspection. Certified pest‑control technicians can identify entry points, assess infestation size, and recommend appropriate control measures.
  3. Keep the affected area clean. Remove food sources by storing pantry items in sealed containers, disposing of garbage daily, and eliminating crumbs or spills.
  4. Seal potential access routes. Use steel wool, copper mesh, or expanding foam to block gaps around utility lines, vents, and baseboards. Repair any damaged flooring or insulation that may serve as a passage.
  5. Deploy traps or bait stations according to local regulations. Snap traps placed near walls or behind furniture capture mice efficiently; live‑catch traps allow relocation if permitted. Bait should contain peanut butter, chocolate, or dried fruit for maximum attraction.
  6. Monitor progress. Check traps daily, record captures, and adjust placement as needed. Continue observation for at least two weeks after the last sighting to ensure the problem has been eradicated.
  7. Document all actions. Retain copies of correspondence with management, invoices from pest‑control services, and photographs of repaired areas. This documentation supports future disputes and verifies compliance with lease obligations.

If the infestation persists despite these measures, request that the landlord engage a licensed exterminator and consider filing a formal complaint with local housing authorities. Maintaining a clean environment, sealing entry points, and involving qualified professionals constitute the most reliable strategy for eliminating a mouse that is active beneath the floor in a multi‑unit residence.