Typically a dead rodent mouse rat squirrel or other will emit a foul odor for a week to a couple weeks.
Dead mouse in ceiling.
If you re too squeamish to undo a snap trap to release the dead mouse you can.
The good news is that you won t have to live with the smell of decomposition forever and you don t have to tear apart your wall or floors or ceiling or put the house up for sale.
But below are some tips so you can avoid that.
If a dead mouse carcass is inside a wall or drop ceiling or any other inaccessible cavity the best method is to move back and forth with your nose against the wall or ceiling sniffing and sniffing.
Dead mice can be deposited into a plastic bag to take out with the trash or directly into the outdoor garbage can.
Set traps inside any drop ceilings and at.
Exterminating mice look in the attic for urine stained areas and trails of mouse droppings small black pellets the size of rice grains.