How to Get Rid of Dead Mouse Smell – Informational Overview

The carcass of a dead mouse smells very bad because of a combination of methane, hydrocarbons, benzene, and sulfur dioxide created when the body of the rodent starts to decompose.

Even without providing any scientific explanation, many people can identify this odor produced by a decaying animal immediately. This is because it is sickening, disgusting, and has a gut-wrenching smell similar to death.

Dead rats tend to smell until their entire body has decomposed and dried out. If a rodent dies in an area that is wet and moist, the smell can last for weeks. In fact, it can ruin the chances of having a breathable house. Thankfully, there are plenty of steps you can use in order to remove the dead animal smell from your house.

How to Find a Dead Mouse in Your House

As much as you hate the smell of a dead rat inside your house, you have no choice but to sniff it out and locate the entire source of the problem. This may sound incredibly unpleasant, but in order to locate the dead mouse, your nose is going to be your biggest ally.

However, sometimes, the smell can fill up the entire room or area, which can make it very difficult to pinpoint the exact location of the stench. Also note that a decomposing body can be smelled easily from meters away, which means that the dead rodent can be lying anywhere on your property.

In this case, the best advice to follow is to inspect every potential and easily accessed hiding spots, including:

  • Behind the fridge
  • Under your furniture
  • Around the pipeworks
  • Inside the attic
  • In food cupboards

If you have discovered the rotten carcasses, luckily, then you can follow the steps below on how to get rid of it in a safe way.

How to Remove The Smell of a Dead Mouse 

The good news with a dead mouse smell is that it can be eliminated easily, so you no longer have to put up with the ugly smell and can live inside your lovely house peacefully. By making use of our simple, yet informative, guide mentioned below, you can remove this dirty smell immediately.  

1. Follow the Smell

The first step to getting rid of the dead mouse smell is to find the carcass and remove it safely so that the smell does not intensify. Failure to remove the dead mice and control the smell can turn your house into an unsafe and uninhabitable place.

Remember, as long as the mice remain in the house, the smell will keep on getting worse with animal decay. For this reason, finding dead mice is very important. In order to find any present inside an enclosed space or a wall, follow your nose. Flies in the room can also lead you to it.

Moreover, you can often see maggots moving away from the dead mouse or find a damp stain or spot on the wall that will lead you to it. Once you have found the smell, you can remove it by following the next step.

2. Remove the Dead Mouse

When getting rid of the dead mouse, you need to make sure that your skin does not come in direct contact with the body because it will be filled with germs and diseases. Here is what you should do:

  • Keep Protective Gear Near By: Protective gear is necessary for discarding the mice. Make sure you wear rubber gloves over your hands and a protective mask on your mouth in order to keep yourself away from germs and avoid coming in contact with the dead animal.

  • Place The Mice In a Sealable Plastic Bag: You can either use a tool to place the dead rat inside the plastic bag, or you can use your hands covered in plastic gloves. Also, it is not a bad idea to pour some bleach all over it in order to disinfect it entirely. This is dependent upon the materials the area is made of. Do not use bleach on carpeting or fabric areas.

  • Discard Any Other Mouse Waste Or Object That Is Contaminated: Also, get rid of droppings, remnants, the mouse’s nest, and pieces of nibbled food, as well.

  • Discard Everything Securely In A Bin: Once this is done and placed in the bags, put it inside a bigger bag, tie it all up and throw it away.

  • Disinfect And Clean It: Clean the surface and any other tools you have used on the mice with a good disinfectant. Throw the gloves away and wash your hands properly using antibacterial soap. 

3. Disinfect the Area

Mouse droppings and urine can dry out quickly, but removing the moisture does not kill the germs completely. Instead of making use of brooms and mops, it is advised that you use a disinfectant mixture that can kill the germs on contact.

You can make use of over-the-counter disinfectant in order to do this, but it is recommended that you use one and a half cups of bleach mixed with a gallon of water. The ratio to create this must be one to nine. Spray the area affected with this mixture and leave it for five to ten minutes.

Once the area has become wet, you can scoop up the debris and throw it in a bag for disposal. Also, sponge and mop the other areas with disinfectant and keep in mind that wet is good when it comes to the bleach and water mixture.

4. Eliminate Odor

Even when you have gotten rid of the corpse, you will find the unpleasant smell of decay still around. So, here are steps to get rid of this odor from your house.

  • Ventilate Your House: Naturally, the first thing to do is to open the doors and windows throughout your house.

  • Sanitize the Surface: Clean your house and disinfect all the surfaces with bleach and polish them.

  • Deodorize Fabrics: Invest in a natural odor removing spray and spray it on your curtains, carpeting, and upholstery.

  • Use Odor Eliminating Bags: Even if you successfully discard the body, the smell can still enter your house because it is very strong. For this reason, it is a better option to make use of odor-removing bags as they not mask the smell but remove it entirely.

  • Get an Odor Remover: Standing and plug-in odor removers made with carbon activated filters or any other HEPA filter are more effective in getting rid of bad odor compared to purifying systems.

  • Use Ground Coffee: Another smart idea is to place fresh ground coffee in strategic places that can be a quick fix to get rid of your dirty smelling problem.

  • Get Incense Sticks: Another cheap solution to remove the odor is to light up your favorite sticks in the house for a couple of days.

5. Clean the Area and Mouse-Proof It

In order to avoid more mice entering your house and creating more dead smell, you can mouse-proof the house. This can be done by making it impossible to gain entry inside your house. Some rodent proofing materials to use are:

  • Concrete
  • Caulk
  • Coarse steel wool
  • Hardware cloth of 19-gauge
  • The sheet metal that has a thickness of 26-gauge
  • Aluminum or copper wire mesh

Some ways to prevent entry in common access points for these rodents are:

  • Repair and plug all the gaps and cracks present inside the walls, foundation, basements, etc.
  • Seal the cracks and gaps all around the window frames and doors.
  • Make sure you caulk holes all around the pipes attached to the appliances
  • Cover up open insulation that can be used for nesting.
  • Seal the exterior lines that pass through the walls and make them tight
  • Place a cap on your chimney to stop mice and other animals from entering.

Video Review For Removing That Dead Mouse Smell

To know more about the removal of dead mouse smell, you can watch this video. It explains how to clean the area where the mouse has died and the use of baking soda to remove the smell of the mice. Baking soda helps in immediate removal of dead smell and is ideal to use.


The first sign something has gone wrong in your house is the notorious stench that fills your nostrils, which is also the closest compatriot to finding the dead rat. Once you have discovered its resting place, the most difficult part is over. Simply get rid of it by following the instructions mentioned above and also remove the odor in order to breathe easily inside your house.

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