How can you get rid of the smell after a rat dies under the floor? - briefly
Remove the dead rodent, clean the affected space with an enzymatic cleaner or a diluted bleach solution, then ventilate thoroughly and place odor‑absorbing materials (e.g., activated charcoal or baking soda) to eliminate residual smell.
How can you get rid of the smell after a rat dies under the floor? - in detail
When a rodent carcass is hidden beneath flooring, the decomposition process releases volatile compounds that quickly become noticeable. The first step is to locate and remove the source. Cut a small section of the floorboard or drywall directly over the suspected area, taking care not to damage utilities. Use a flashlight and a flexible inspection camera if available to confirm the position before cutting. Once the body is exposed, wear disposable gloves and a mask, place the remains in a sealed plastic bag, and dispose of them according to local regulations for animal waste.
After removal, clean the cavity thoroughly. Scrub all surfaces with hot water and a heavy‑duty detergent, then rinse. Apply an enzymatic cleaner designed for organic stains; these products break down residual proteins and fats that continue to emit odor. Allow the solution to sit for the manufacturer‑recommended dwell time before wiping dry.
Air circulation eliminates lingering smells. Open windows and doors, then run fans to push fresh air through the space. If the area is enclosed, install a temporary exhaust vent or use a portable air purifier equipped with a charcoal filter. For persistent odor, place bowls of activated charcoal, baking soda, or commercial odor absorbers in the cavity for 24–48 hours.
Seal the opening with new flooring or drywall, using a vapor‑tight barrier if moisture is a concern. Apply a primer and paint formulated to block odors, especially in high‑traffic rooms. Finally, inspect the surrounding structure for entry points—gaps around pipes, vents, or foundation cracks—and seal them with steel wool, caulk, or metal mesh to prevent future infestations.
Summary checklist
- Locate and access the dead animal.
- Remove and dispose of the carcass in sealed bags.
- Clean the cavity with detergent, then enzymatic cleaner.
- Ventilate thoroughly; use fans, exhaust, or air purifier.
- Apply odor‑absorbing agents (charcoal, baking soda) for 1–2 days.
- Seal the repair with odor‑blocking primer and paint.
- Close all potential entry points to avoid recurrence.