How to Get Rid of Rat Urine Smell

Dealing with a lingering smell of rat urine in your home can be frustrating and concerning. Not only is the odor unpleasant, but it can pose health risks if left untreated. Whether you had an infestation some time ago or are still struggling with rodent infestation cleanup after a recent rat problem, removing the smell is crucial to restoring comfort and safety in your living space. In this blog, we’ll walk you through effective methods and tips on how to get rid of rat urine smell to ensure your home will smell fresh and clean once again.

Why the Rat Urine Smell Lingers

Rat urine has a potent and persistent odor that can linger long after the rodents are gone. This is because rat urine contains high nitrogen levels, which convert to ammonia as it dries and breaks down. Ammonia has a strong, pungent smell that can seep into porous materials like wood, drywall, and fabric. For this reason, even if the surface appears clean, the scent can persist if the underlying material is contaminated.  Due to this chemical makeup of rat urine, a lingering rat urine odor is not likely to go away over time if you just wait. In fact, the smell may actually intensify over time. As urine sits and breaks down, bacteria start to grow. These bacteria further decompose the urine, releasing additional foul-smelling compounds. The more bacteria grow, the worse the odor. Moisture levels in the air can also lead to the smell growing worse, as moisture can release trapped ammonia back into the air, making the scent seem stronger. If the area becomes damp and humid, the odor may be reactivated. 

Additionally, rats tend to return to the same area to urinate. They do this to mark their territory and leave scent trails to mark routes to food sources. They also use it to communicate with other rats and attract them to the same area. The result is multiple layers of odor buildup over time. If not properly cleaned, the smell can become embedded in the affected areas, making it difficult to remove with regular cleaning methods. Understanding the stubborn nature of rat urine is the first step in effectively tackling the problem. If you have had a rat infestation and notice a lasting smell, you must treat and clean the area to eliminate the odor effectively.

Rat urine and health risks

How to deal with a lingering rat urine smell

If you’re asking, “How do you get rid of a rat urine smell?” you’ve most likely already cleaned the area where you found rat urine. If you have not attempted cleanup yet, follow the steps in our previous blog on attic decontamination. Our first recommendation would be to contact us or another professional pest cleanup company as your safest cleaning option to ensure a thorough job and avoid personal risk. However, if you decide to clean the rodent waste yourself, then as per CDC guidance, use an “EPA-registered disinfectant or a bleach solution”. Repeat the cleaning process if you have already tried this and have not succeeded in removing the urine smell. You may need to repeat the disinfectant / bleach cleaning process several times over a few days for a thorough clean. If you are cleaning up an attic, check that you have removed all contaminated insulation, as this could be the source of the rat urine smell. If the smell remains after cleaning with disinfectant/bleach several times, we recommend using an enzyme cleaner.

Use an Enzyme Cleaner.

An enzyme cleaner is highly effective for removing rat urine smell because it tackles the odor at its source rather than just masking it. Enzyme cleaners contain biological enzymes that break down the organic compounds in rat urine, such as uric acid and proteins responsible for the strong, lingering odor. When applied, the enzymes penetrate porous surfaces like wood, fabric, or concrete, thoroughly neutralizing the smell. To use an enzyme cleaner, generously apply it to the affected area and allow it to sit for the recommended time, usually at least 2-3 hours, to give the enzymes enough time to digest the odor-causing substances. Once it has had time to work, continue following the product’s instructions to scrub the area. Remember, during all cleaning attempts and whenever you are in the contaminated area, it’s vital that you wear personal protective clothing, including gloves and a respirator with a HEPA filter. 

Natural Cleaning Products and Rat Urine 

Natural cleaning products such as vinegar and bicarbonate of soda may mask the urine smell temporarily, but they are not as effective as enzyme cleaners. Unlike enzyme cleaners, they cannot entirely break down the compounds in the urine, so they won’t be powerful enough to eliminate the smell.

Do you still have a rat infestation?

If you still find that the rat urine odor is returning after cleaning with disinfectant and an enzyme cleaner, consider the possibility that you may still have a rat problem. Rats often return to the same spots to urinate. It’s possible that your pest removal efforts may have failed, and you may need to check that your property is not still infested. 

Need professional help to get rid of rat urine smell?

If you’ve tried the above suggestions and you’re still wondering how to get rid of a rat urine smell or are concerned that you still have a pest infestation, we recommend you get professional help. A professional pest cleanup company such as Attic Cleanup has the expertise and equipment to eliminate your rat urine problem. We can tackle rat urine odor with industrial-level cleanup equipment, including air scrubbing machines. We are also experts in pest removal, so we will thoroughly inspect your entire property to ensure you are not still suffering from a pest invasion. With over 25 years of experience conducting pest removal in residential and commercial properties, we know the signs to look for. We meticulously check every inch of a property for pest entry points. If we find signs of current infestation, we can conduct a proper pest removal for you. 

So, if you need help getting rid of rats, rat urine, or any other pest from your property, contact us today. We are ready to help!

Your Local Attic Cleanup Specialist,

Michael Koski