Unfortunately it may take three weeks or more to completely decompose. A professional may be contacted to break through and rebuild affected walls. This can be costly and not a viable option. Even after elimination of the source of dead rodent smell, the unsettling scent may linger for up to two weeks.,
Place the dead animal into a thick plastic bag or a plastic container that has an airtight seal, and if using a plastic bag double bag it to prevent the scent from escaping. This can then be incinerated, or for smaller animals it can be placed in the garbage.
What Happens if Mice Die in Your Walls? If you have dead mice in your walls, they typically dry up in 10 days to 2 weeks. At that point, their odor dissipates. Without drilling holes in your walls, it's difficult to extricate the offending bodies and remove the source of the smell.08-Feb-2021
Rats in the wild are prey to snakes, coyotes, owls and other animals, so they often live for less than a year, but rats living in more protected indoor areas can live for two to three years.15-Oct-2018
The smell of a dead rat can be harmful to a person's health due to the toxic gases and microscopic compounds of the dead animal that are constantly being released into the indoor air. Since most homes are not consistently ventilated, the gases permeate into the respiratory tract and can potentially cause illness.
Unfortunately not much. Chances are that the carcass will dehydrate in a few weeks at which point the microbes that produce the smell as they decompose flesh will perish and the smell will vanish.20-Mar-2017
If you have trouble finding or dislodging the carcass from your walls, a professional wildlife removal technician can help. They typically cut a hole in the wall, spray a neutralizing or masking agent and re-plaster the area once treated.02-Aug-2016
Vinegar: Fill multiple cups full of vinegar and place in the area of the source of the odor. Ground Coffee: Place ground coffee filter packs or ground coffee in the area of the bad smell. Baking Soda: Mix baking soda in a spray bottle of water. Spray the source of the bad odor several times daily until it dissipates.17-Dec-2019
The dead rodent is probably in the location where the smell is the strongest. Before removing the drywall, consider drilling a small hole and taking another sniff to confirm the location of the dead animal. Since you cannot see behind walls, the smell is often the only clue to the location of the rodent.01-Feb-2022
Unfortunately it may take three weeks or more to completely decompose. A professional may be contacted to break through and rebuild affected walls. This can be costly and not a viable option. Even after elimination of the source of dead rodent smell, the unsettling scent may linger for up to two weeks.