Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

How To Remove Cat Urine Smell From Your Whole House: 5 Vet-Verified Tips

grey cat lying on the carpet beside pee spot

For all the joy they bring into the home, one aspect of having a cat that most owners don’t often appreciate is the smell. Experienced pet parents know it only takes one indoor accident to create a pungent odor throughout the house. With their highly concentrated urine that can readily soak into various hard and soft surfaces, cats have a knack for making a lasting stink.

Cleaning cat urine thoroughly and quickly is the only way to keep your home comfortable for the family and guests and prevent future accidents. Unfortunately, these stains present unique challenges that many everyday solutions often can’t solve. If you’re ready for a fresher home, we’ll explore five tips and tricks to remove the cat urine smell from your whole house.

divider 3 paws

How to Effectively Clean Up Cat Messes, Odors & Stains 

The first part of cat mess prevention is ensuring you are taking the time to properly clean any accidents -  and that starts with investing in the right products! Of course, you'll want to opt for something safe first and foremost, to protect your feline's health, but secondly, you'll need a solution powerful enough to lift the toughest, stinkiest, most set-in stains. After careful consideration, we fell in love with one product and highly recommend it to all pet owners! 

Our Favorite Enzyme Cleaner 

Image Product Details
Best Enzyme Spray
Winner
Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray
  • All-purpose
  • Pet-safe
  • Multi-surface safe
  • There are several reasons we can't get enough of the Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray.  It permanently removes the very worst smells and stains, it can be used on a multitude of surfaces and its neutral scented, meaning no odor masking! It comes in a generous 32-oz bottle and comes with 100% satisfaction guarantee. Learn more about this holy grail of a cleaner here!

    At Catster, we’ve admired Hepper for many years, and decided to take a controlling ownership interest so that we could benefit from the outstanding products of this cool cat company!

    divider 1 paws

    How to Remove Cat Urine Smell From Your Whole House

    1. Use a Blacklight to Find Old Urine Spots

    urine spot on the carpet as seen using UV light
    Image Credit: In The Light Photography, Shutterstock

    We can sometimes sniff out the location of a cat urine spot, but more often than not, the smell seemingly comes from all sides, leaving us wondering where to begin our cleaning efforts. If you’ve been struggling to find the odor’s source, a UV light is an easy way to reveal hidden cat urine marks.

    How to Use a Blacklight to Find Cat Urine

    Blacklights or UV lights can be found at most major retailers. Start by turning the lights off, and closing the curtains to darken the room as much as possible. Then, sweep the light over your room.

    Look for glowing yellow or neon green splatter patterns where your cat may have sprayed or urinated, often along the lower edges of walls or furniture. Once you find them, mark the perimeter of the urine stains so you know the area you must cover with your cleaner.

    Check for stains where cats might secretly urinate, like behind or underneath furniture or in the back of a closet. Remember that UV light only works on dried cat urine stains, not fresh ones, so they are more practical if the cat pee smell has been around for a day or two.


    2. Use an Enzyme Cleaner on Cat Urine Stains

    close up of woman in rubber gloves with cloth and derergent spray cleaning carpet at home
    Image Credit: Ground Picture, Shutterstock

    Cat urine is more challenging than most stains, so many of our favorite cleaners typically fall well short of removing them for good. Uric acid crystals and other odor-causing compounds cement into carpet and furniture fibers.

    Many cleaning products do little more than mask the smell, and even the best steamers and carpet cleaners can often only remove a small portion of the stain.

    How to Use Enzyme Cleaners

    Enzyme sprays are pet and people-safe and can work on numerous surfaces without the risk of staining or damage. You only need to shake the bottle and saturate the area. Enzymes break down urine particles as they make contact and continue working until the urine is gone.

    In many cases, you don’t even have to blot up the cleaner afterward, but be sure to follow the directions on your particular product.


    3. Pull Up Carpet If Needed

    Rug being removed
    ImageCredit; Andy Dean Photography, Shutterstock

    Measuring the extent of the cat urine is crucial if you hope to eliminate it entirely. You may clean a carpet to remove a stain and smell from the top layer to your satisfaction, but urine that soaks through to the carpet padding or the subfloor will continue pumping out an odor and attracting your cat for repeat performances.

    The same applies to hard flooring that may allow urine to seep between the cracks.

    Assess the Urine Damage in Your Carpet

    Pull up your carpet at the corner and inspect for urine damage in the padding. If the padding is saturated or smells like urine, go another step and check the subfloor underneath. While you may be able to refresh the carpet and remove the cat urine odor, padding is cheap and challenging to clean.

    Replace any carpet padding that smells pungent. If the damage extends to the subfloor, use your enzyme cleaner to break down the urine. Once it dries, apply a stain-blocking primer over the wood to prevent stains and odors from spreading.


    4. Air Out the House

    woman-opening-or-closing-the-window-blinds
    Image Credit: Iuliia Pilipeichenko, Shutterstock

    Cleaning the cat urine stain is the only effective way to eliminate the odor. Still, if your house isn’t even tolerable in the meantime, you have a few options to reduce, if not remove, the smell quickly and conveniently.

    Start by opening all the windows to get a cross-breeze. Turn on any overhead fans, and set up box fans in the windows to push the smelly air out and pull fresh air in.


    5. Sprinkle Baking Soda for Immediate Deodorizing

    Cleaning mattress with baking soda
    Image Credit: Nick Alias, Shutterstock

    If you don’t have an enzyme cleaner but want to quickly remove a smelly cat stain, several household staples can provide a temporary refresh. Baking soda is at the top of the list.

    Sodium bicarbonate neutralizes acidic and basic odor molecules, making it a versatile all-natural deodorizer in countless situations.

    Baking Soda for Fresh Urine Stains

    Baking soda is notably helpful as an initial attack for wet pee marks because it absorbs moisture as it deodorizes. When sprinkled on a fresh urine mark on a carpet or fabric, it will soak up the stain rather than push it deeper into the material, as you might do when you blot stains with a cloth.

    Baking Soda for Old Urine Stains

    Baking soda also makes an excellent quick fix for dried urine marks raising a stink. The cat urine smell will often recede but appear days, weeks, or even months later if it gets wet again. High humidity and liquid spills saturate the embedded uric acid crystals, causing them to refill the whole house with the smell.

    Sprinkling baking soda on old cat urine will deodorize it while drawing away the moisture that causes the compounds to reactivate. It may not be a permanent fix or enough to keep your cat from smelling it, but baking soda can save your nostrils in a pinch.

    How to Use Baking Soda to Deodorize Cat Urine Stains

    Sprinkle a generous amount of baking soda over the cat pee stain. Depending on the extent of the stain, let it sit for at least 30 minutes or longer to absorb the odors and moisture. When dry, vacuum the powder.

    Ideally, powdery materials like baking soda should be vacuumed using a wet/dry vacuum with a HEPA filter. Fine particulate matter can damage the motor on a conventional vacuum and may escape the grasp of a standard filter, causing more issues to solve.

    When you catch the stain in time, baking soda can save your carpet padding and subfloor until you can apply an enzyme cleaner. If you’re out of baking soda, you can use cornstarch or clean cat litter for a similar effect.

    Hepper Advanced Bio-Enzyme Pet Stain & Odor Eliminator Spray
    • ADVANCED ENZYMATIC CLEANER - Penetrates the most stubborn smells and stains at the deepest molecular...
    • FOR ANY MESS, ON ANY SURFACE - This pet odor eliminator cleans your carpets, floors, furniture,...
    • FRESH, NATURAL ODOR - Our unique formulation doesn't rely on dangerous or unpleasant chemical...

    At Catster, we’ve admired Hepper for many years and decided to take a controlling ownership interest so that we could benefit from the outstanding products of this cool cat company!

    divider 1 paws

    Final Thoughts

    Cats are known for occasionally making trouble, and nothing they do will foul up the home more than a noxious urine odor. The smell is unexpectedly tricky and persistent, leaving many of us ready to throw in the towel and call a professional.

    While extensive damage may need expert intervention, following these tips and tricks to remove a urine smell will give you the best chance of overcoming the issue with minimal effort and maximum satisfaction.


    Featured Image Credit: Pixel-Shot, Shutterstock

    Want content like this delivered to you?

    Sign Up For Our Newsletter

    News, insights, expert advice, and everything cat

    * By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




    How useful was this post?

    Click on a star to rate (you can leave written feedback after clicking submit)

    Help us improve Catster for pet parents!

    Your feedback really matters.

    What did you like about this post? Also how can we improve it?

    Join the conversation

    Leave a Reply

    You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


    Talk With A Vet Online

    Peace of mind,
    anywhere, anytime

    Affordable vet advice

    Is Lethargy Normal After Surgery In Cats? Vet Approved Care & Health Facts

    Whether it’s a routine operation or major surgery, cats need time to recover after any surgical procedure. They need extra care and attention,...

    Selkirk Rex Longhair: Info, Pictures, Care & More

    The Selkirk Rex Longhair is a charming, medium-sized cat most known for their curly coat and friendly personality. These cats break the negative...

    Where Do I Put My Cat’s Bed? 5 Vet-Approved Ideal Spots

    Cats are drawn to all kinds of weird spots in the house, and cat owners understand how much they love to nap. You...

    Why Do Cats Eat & Chew on Plants? Vet-Verified Facts & Plant Guide

    Cats are strict carnivores, preferring to hunt down small prey like mice or birds. However, sometimes you might find your cat snacking on...

    More related

    What to Pack When Traveling with Your Cat: 11 Essentials for Your List

    Not as many people travel with their cats as those traveling with dogs. This is partly because many cats aren’t into switching up...

    Why Do Cats Like Chin Scratches? 9 Vet-Reviewed Reasons

    If you own a cat, you know that cats love chin scratches. You’ve probably noticed that they will rub their cheeks against your...

    Can Cats Eat Chia Seeds? Vet-Approved Nutrition Facts & FAQ

    Chia seeds are most associated with those tasty chia puddings that you see all over social media. Maybe you haven’t thought about giving...

    Rare Cat Diseases: 10 Illnesses & What to Watch For (Vet Answer)

    When you’re owned by a cat, you want to make sure you know all there is to know about their grooming, feeding, preventative...

    Keep reading

    Orijen Cat Food Review of 2026: Recalls, Pros & Cons

    Review Summary As you probably guessed, “Orijen” is a play on “origin”—meaning, the food harkens back to the origins of a cat’s diet. As a result, the manufacturer strives to create biologically-appropriate offerings for your cat. That means plenty of...

    Orijen Cat Food Review

    How to Stop Cats From Fighting: 5 Vet-Reviewed Tips & Tricks

    Intact cats are territorial and on the prowl for mates. You can curb aggressive You love your cats, and you’d love for them to get along with each other. Are catfights taking away from the peace and tranquility of your...

    domestic-cats-fighting

    Can Cats Eat Rotisserie Chicken? Vet-Approved Risks & FAQ

    Rotisserie chicken is a delicious and versatile food that many humans regularly consume. Just the smell of fresh, warm rotisserie chicken brings most cats running, but is it okay for cats to eat? While plain chicken is a healthy protein...

    Can Cats Eat Rotisserie Chicken

    Why is My Cat Pacing? 8 Vet-Verified Reasons & How You Can Help

    It can be worrying if you suddenly start to notice that your cat is pacing. If this turns into a regular occurrence rather than a one-off, it can be a sign that everything isn’t quite right with your beloved cat....

    beige fawn maine coon cat on the move walking through the garden

    Can Cats Eat Rice Cakes? Vet-Approved Nutrition Facts & Safety Guide

    Rice cakes are a popular snack among vegan and health-conscious people. But are they a healthy snack for your cat? Rice cakes might seem harmless, but should you let your animals eat them? The answer is that rice cakes are...

    Can Cats Eat Rice Cakes

    Nature’s Variety Instinct Cat Food Review of 2026: Recalls, Pros & Cons

    Review Summary Nature’s Variety is the brand behind Instinct cat foods, available as wet canned food, dry kibble, and toppers. Its inspiration is knowing that raw diets have the potential to provide your cat with many different health benefits. It’s...

    Instinct Cat Food Review

    Is Cat Grass Good for Cats? Vet Approved Facts & Care Tips

    We think of cats as being strictly meat eaters, which is true. An adult cat’s diet should consist of approximately 26% of (animal-derived) protein, compared to 12% for dogs and 8% for humans. The protein consumed by dogs and humans...

    Senior tabby cat and calico cat sitting next to the fresh green cat grass

    How to Treat Mange in Feral Cats: Our Vet Gives 8 Tips & Tricks

    If you’ve got a problem with some itchy feral felines, all of you—yes, yourself included—will be desperate to get it under control. Mange is one of several causes of really itchy skin, and it is particularly prevalent in populations of...

    feral cat has a severe sarcoptic mange infection

    Love Cats? So Do We! Join the Catster Community

    Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




    Sign up for the Catster Email Newsletter

    Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.