As a country type of girl i am quite amused about people being so concerned about killing such a disease carrying vermin and going so far as trapping and releasing.
Mouse in wall smell.
Next fix the hole on the wall using a drywall patch so mice can t get inside your wall anymore.
Once found cut the drywall remove the mouse and then patch the drywall.
If you can access the walls then read this post and complete the task with relative ease.
Unfortunately this smell can be produced by any member of the rodent family mice rats etc that may have found its way into your walls attic or crawlspaces and died.
The odor of dead mice is a combination of methane sulfur dioxides and other noxious gases produced while the tissues start decomposing.
From there it becomes a game of hide and seek checking every crevasse you can access and shifting furniture this adventure can be even worse when the rodent died somewhere in your car or another small.
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.
The answer to this depends entirely on whether or not you can access the walls.
Not the end of the world.
It can be harrowing to search for a mouse or rat corpse and there s no easier way than to suck it up and use your nose.
So depending on the location of the corpse you will need different tools when figuring out how to get rid of dead mouse smell.
To remove the dead mouse you will need first to locate it which can be done with a borescope or a small camera.
While it s easiest to dispose of a dead mouse when you can find the corpse in plain sight it s still possible to get rid of rodents that are hidden in hard to reach areas.
Try to identify the room where the dead rat smell is strongest.
The odor of a dead mouse is a mix of sulfur dioxides methane and other noxious gases that are produced as tissue begins to decompose.
Use this diy mouse repellent spray or leave out cotton balls dipped in peppermint oil wherever you suspect mice are liable to come sniffing sealed up entrances to the house are a good start.
How to remove a dead mouse from your wall.
As a rodent s body rots the smell can spread over 300 meters away from the corpse.
Get rid of mouse urine smell in walls.
I poisoned a mouse and it died in the wall and left a big smell for about a week and then went away.
It can be almost impossible to find a dead mouse in the wall or hidden in a cabinet.
Typically a dead rodent mouse rat squirrel or other will emit a foul odor for a week to a couple weeks.
And how to get rid of it.
Read more about this topic here to learn ways of getting mice out of walls air ducts and other typical rodent haunts.
How to get rid of dead mouse smell involves getting rid of the corpse.