What should you do if dead mice under the floor are smelling?

What should you do if dead mice under the floor are smelling? - briefly

Locate and remove any dead rodents, then thoroughly clean the area with a disinfectant and increase ventilation. If the odor persists, enlist a pest‑control professional to inspect and remediate the problem.

What should you do if dead mice under the floor are smelling? - in detail

If a foul odor emanates from the space beneath the flooring, the source is likely decomposing rodents. Immediate action prevents health risks and further damage.

First, protect yourself. Wear disposable gloves, a mask rated at least N95, and goggles. Open any accessible vents or windows to improve ventilation.

Next, locate the carcasses. Remove floor coverings carefully—lift carpet edges, pry up floorboards, or cut through drywall where the smell is strongest. Use a flashlight to spot the bodies.

After confirming the dead animals, follow these steps:

  1. Removal

    • Place each carcass in a sealed plastic bag.
    • Double‑bag to contain fluids.
    • Dispose of the bags according to local regulations for animal waste.
  2. Sanitation

    • Apply an enzymatic cleaner or a solution of 1 part bleach to 10 parts water on all affected surfaces.
    • Scrub thoroughly, paying attention to joists, insulation, and any crevices.
    • Rinse with clean water and allow to dry completely.
  3. Deodorization

    • Sprinkle baking soda over the cleaned area, let sit for several hours, then vacuum.
    • Alternatively, use a commercial odor‑neutralizing product designed for pet or rodent waste.
  4. Inspection and Repair

    • Examine the cavity for entry points—gaps around pipes, vents, or foundation cracks.
    • Seal openings with steel wool, caulk, or metal mesh.
    • Repair any damaged insulation or flooring material.
  5. Preventive Measures

    • Set up snap traps or electronic deterrents around the perimeter of the home.
    • Keep food storage sealed and eliminate clutter that can provide shelter.
    • Schedule periodic inspections, especially in basements and crawl spaces.

If the odor persists after cleaning, consider hiring a professional pest‑remediation service. They can perform deep decontamination and verify that no residual contamination remains.