How to Remove Black Urine Stains From Hardwood Floors: 9 Proven Ways

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Installing hardwood floors is a golden standard for homeowners, but did you know maintaining them isn’t that easy for pet owners? You may not know, but having pets running around can damage your wood surface with black urine stains over time. 

Instead of second-guessing the proper cleaning procedure, join our team as we discuss how to remove black urine stains from hardwood floors.  

Method #1: Hand Scrapers

If the pet stain on the hardwood floor is fresh and small, you can remove it using hand scrapers. Don’t forget to go through the wood grain when removing stains with these tools for better cleaning results.  

It can be tempting to scrape the wood floor all the way through, but we advise extra caution to prevent damaging its surface. You’ll also see marks in the same spot you cleaned, which you can solve with grit paper. 

Method #2: Bleach Products for Wood

Although wood bleach products are more known to remove light markings on wood floors, you can also use them as an effective cleaning solution to remove black urine stains. Before applying it, you must wear gloves and a respirator mask.


You must sand the stained area to slightly open surface pores for a more effective bleach application. It should eliminate black urine stains as long as you follow the product’s instructions.

It carries a strong scent, so you can rely on it to remove the foul odor from pet urine stains. However, it also means you can only use it in a well-ventilated area. If this product is used on a light-colored hardwood floor, expect mild discoloration on its surface. 

Method #3: Dish Soap and Warm Water

Water and dish soap isn’t the most effective combination to remove pet urine stains. However, it should suffice if the animal urine is recent and hasn’t stained the hardwood floors yet. 

This simple cleaning solution can work wonders when mixed with baking soda, white vinegar, or hydrogen peroxide. Add a bit of each ingredient to a warm water bowl and soak the sponge or brush into the mixture.  

water and soap solution

After that, gently scrub the black urine stain. Let the floor dry for around five minutes to soak the pet stain. Once dried, run a soft cloth over the entire floor to wipe the cleaning solution off the surface. 

Method #4: Baking Soda

Baking soda works best as a natural disinfectant and odor remover, so we can vouch for it as a supplement ingredient to vinegar and hydrogen peroxide when removing hardwood floor stains.

First, mix baking soda with vinegar in a large plastic tub. Once it reaches a soft-paste consistency, brush the mixture on the surface to remove pet stains. Our experts advise applying the paste generously and letting it sit for one or a few hours. 

baking soda

Wipe the residues and urine markings from hardwood floors with a vacuum. After you ensure it’s clean, run a damp cloth over the surface to dry it. To ensure its cleanliness, you can opt for a microfiber cloth.

Method #5: Water and Hydrogen Peroxide

Although applying hydrogen peroxide on hardwood floors can cause discoloration [1], it can fight tough stains like no other. However, using it on old, pigmented wooden surfaces is more economical. 

Let the clean cloth soak with 3% hydroperoxide cleaner. As you scrub this chemical cleaner over the stained surface, ensure that the peroxide-soaked cloth doesn’t miss a spot. 

After the application, cover the hardwood floors with a cotton cloth or paper towel. Pour another peroxide over it and then layer it with a plastic sheet to keep it damp for a few hours. 

hydrogen peroxide

If the markings weren’t lifted from the hardwood floors, you could repeat the steps above until it does. Wash the stained surfaces with water and soap to remove any residues from animal urine. 

After patting it dry with a clean cloth, the trick is to apply a clear coat sealer on any area that shows signs of discoloration. 

Method #6: White Vinegar and Grapefruit Oil to the Wood

You can grab white vinegar and grapefruit oil from your kitchen pantry if you seek a more economical option for removing urine markings from hardwood surfaces. These ingredients have natural components that can eliminate the pungent odor.

To make this cleaning mixture, pour two pints of lukewarm water into a container with a cup of vinegar and a teaspoon of grapefruit oil. Soak the brush or sponge in the solution and scrub the pigmented areas.

After wiping the floor with a clean cloth, you’ll see if the stain has faded. If not, you can repeat the scrubbing process. 

white vinegar

Method #7: Commercial Cleaner

Did you know you can remove black urine stains from hardwood floors using commercialized enzyme cleaners? These products contain natural enzymes, making them efficient and non-toxic. 

enzyme cleaners

It also neutralizes ammonia and organic components that work well in removing pet odors on the floor.

How to Make Homemade Enzyme Cleaner

  1. Add around one and a half cups of lemon/orange peels in a bowl or container. 
  2. Mix seven tablespoons of brown sugar, followed by two pints of water. 
  3. Close the lid tightly and start shaking the container to stir the mixture well. 
  4. Make a small opening on the lid and place the solution in cool and dry storage for three months. 
  5. After the storage period, shake and strain the mixture well into a spray bottle. 
  6. You can spray the enzyme cleaner over the stain and scrub it with fine-grade steel wool dipped in a little elbow grease. 
  7. Repeat the removal process until black urine stains from hardwood floors are removed. 

Method #8: Absorbent Cloth

You can use absorbent clothes if the urine hasn’t settled into the surface and formed a stain. All you need is to let the paper towels absorb it and replace it until every ounce of the animal urine is soaked up by the absorbent cloth. Clean the surface with soapy water to prevent lingering odor. 

absorbent cloth for cleaning

Method #9: Sand then Refinish the Hardwood Flooring

If the stain isn’t too deep into the wood, you can sand the floor with medium and fine grit sandpaper. After removing urine markings from hardwood floors, vacuum the surface and wipe it with a tack cloth to remove dust particles. 

You should also know that the stain and cleaning process can affect the wood’s condition. Because of this, we suggest refurbishing the floor with a sealer coat. 

Removing Black Urine Stains On Your Hardwood Floor: 5 Easy Steps

Step #1: Identify the Source of the Urine Stain

Felines are known to do their business on litter boxes, so it’s not common for them to leave urine marks. You should identify if they have health problems or if it’s a simple litter box issue. 

As for adult dogs, the black urine stain could be a sign of urinary tract infections. Although male dogs rarely experience this problem, it doesn’t mean they won’t encounter it.  

hardwood floor with urine stain

Checking the urine source should help you identify your pet’s health issues and choose a cleaning method.

Step #2: Apply Your Preferred Cleaning Solution

The right cleaning mixture depends on the surface and the stain condition. Remember that not all substances in these cleaning components are effective in every situation. 

Step #3: Scrub the Area Until You Get Rid of the Stain

Scrubbing with a clean brush or cloth will help you achieve a better result. Don’t forget to add pressure on the cleaning tools to get the job done faster.

Step #4: Wipe Off Any Remaining Solution

You may have removed the stain, but the cleaning mixture on the surface still has its residues. Clean it with a cloth or towel If you don’t want grime and dirt to form.

removing pet stains on hardwood floor with hydrogen peroxide

Step #5: Dry the Affected Area Using a Clean Towel or Cloth

Don’t give moisture a chance to damage your floors. You should dry the surface with a soft cloth or towel. 

Protecting Hardwood from Unwanted Pet-Related Stains: Steps to Do

Train Your Pets

You’ll need a few tricks and patience to teach pets not to pee on the floor. One of the trainings you can consider is teaching them how to use a litter box. 

Cat and Dog Litter

The pet litters you should consider buying should be sized according to your cat’s or dog’s size. You can buy a variety of litter from local pet shops, but ensure that it includes paper pellets. 

Schedule Potty Breaks

You can avoid these stain problems by training your pets to pee on a particular schedule. Through this, accidental peeing is less likely to happen. 

taking pet to potty break

Neuter or Spray Your Pets

Sometimes, peeing is a sign that your pets are marking their territory. This natural behavior often stops when the animal is spayed or neutered.

Consult With Your Pet’s Vet to Identify Underlying Conditions

If these incidents still happen despite the training, the chances of your pet having health conditions are high. Once it becomes a frequent pattern, it’s time to visit the vet. 

Clean Urine Stains Right Away

Animals have a great sense of smell. They could track the urine scent if you didn’t clean the spot thoroughly and do their business in the same area. Don’t let the pee sit on the surface for too long, and ensure no odor lingers. 

Urine, Oil, and Other Stains on Your Hardwood Flooring

When cleaning hardwood floors, you should forego using oil-based cleaners. It could result in an oil stain, and trust us when we say it can be a real pain to remove. 

black urine stain on floor

Once you identify the stain source, choose a cleaning solution from our suggestions, scrub it over the area, and dry it thoroughly.  

Is Coffee as Hard to Remove as Your Pets’ Stain?

Yes, coffee is as hard to remove as your pet’s stain. You’ll need to exert more effort on it, though. Nevertheless, it requires almost the same cleaning methods. 

For more tips and guides, check these articles


How can you get rid of water stains from wood?

You can remove water markings by running a clean cloth over the wood surface. After that, apply a mild detergent and rub it with a damp cloth.

What’s the best method to remove cat urine stains?

The best method for removing black cat urine stains is baking soda and distilled vinegar. You can apply it with steel wool and let the paste sit for one hour. 

What’s the best method to remove dog urine stains?

The best method to remove black dog urine stains is to apply water and peroxide to the affected area. Soak the cloth with 3% of hydroperoxide before scrubbing the floor. 

Can my dog’s pee cause black stains on my hardwood floors?

Yes, your dog’s pee can leave a black marking on the floor because it contains ammonia. Long exposure to urine can cause the wood color to fade.


If you learn how to remove black urine stains from hardwood floors, we don’t doubt that you can now prevent it from happening. If it does occur, don’t hesitate to execute the reliable methods we discuss. 

However, don’t forget to check if the procedure will work well according to the floor and stain conditions. 

Robert Johnson is a woodworker who takes joy in sharing his passion for creating to the rest of the world. His brainchild, Sawinery, allowed him to do so as well as connect with other craftsmen. He has since built an enviable workshop for himself and an equally impressive online accomplishment: an extensive resource site serving old timers and novices alike.
Robert Johnson
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