The Complete Guide to Removing Pet Stains and Odors

House training a dog comes with learning how to eliminate unwanted pet odors. We'll help you learn how to use pet stain and odor removers to eliminate various odors from your dog, and share some potty training tips, too.

You know how it goes: The minute you turn your back, your pet decides that your new carpet is the perfect place to relieve himself. You clean and clean, but you can't get rid of that smell. What can you do?

Well, for starters, you need to find which areas are soiled and then re-train your pet to avoid eliminating in those areas. And to do that, you'll have to clean those areas, and clean them well. Here are the steps you'll need to take:

1. Find All the Soiled Areas

Find all places your dog or cat has done the deed using your nose and eyes. A black-light bulb can make finding even old urine stains easy. Turn out all lights in the room; use the black-light to identify soiled areas and lightly outline the areas with chalk. You can buy black lights at most home supply stores or online. To make the hunt really easy, try using a black light headlamp. It will keep your hands free and make it much easier to search tucked away spaces.

2. Clean Each Soiled Area the Right Way

To be successful in breaking your pet of his habit of urinating indoors, you need to follow all these steps when cleaning an area. If you fail to completely clean the area, your re-training efforts will be useless. As long as your pet can smell his personal scent, he'll continue to return to the "accident zone." Even if you can't smell traces of urine, your pet can.

To Clean Washable Items

  • Machine wash as usual, adding a one-pound box of baking soda to your regular detergent. It's best to air dry these items if possible so you don't heat set any stain or odor before you can see how well the cleaning worked.
  • If you can still see the stain or smell the urine, machine wash the item again and add an enzymatic cleaner (available at pet supply stores) that breaks down pet-waste odors. Be sure to follow the directions carefully.
  • If your pet urinates or defecates on the sheets or blankets on a bed, then cover the bed with a vinyl, flannel-backed tablecloth when you begin the re-training period. It's machine washable, inexpensive, and unattractive to your pet.

To Clean Carpeted Areas and Upholstery

For "new" stains (those that are still wet):

  • Soak up as much of the urine as possible with a combination of newspaper and paper towels. The more fresh urine you can remove before it dries, especially from carpet, the easier it will be to remove the odor. Place a thick layer of paper towels on the wet spot and cover that with a thick layer of newspaper. If possible, put newspaper under the soiled area as well. Stand on this padding for about a minute. Remove the padding and repeat the process until the area is barely damp.
  • If possible, put the fresh, urine-soaked paper towel in the area where it belongs--your cat's litter box or your dog's designated outdoor "bathroom area." This will help remind your pet that eliminating isn't a "bad" behavior as long as it's done in the right place.
  • Rinse the "accident zone" thoroughly with clean, cool water. After rinsing, remove as much of the water as possible by blotting or by using a "wet vac."

For stains that have already set:

  • To remove all traces of heavy stains in carpeting, consider renting an extractor or wet vac from a local hardware store. This machine operates much like a vacuum cleaner and is efficient and economical. Extracting/wet vac machines do the best job of forcing clean water through your carpet and then forcing the dirty water back out again. When using these machines or cleaners, be sure to follow the instructions carefully. Don't use any chemicals with these machines; they work much more effectively with plain water.
  • Once the area is really clean, use a high-quality pet odor neutralizer available at pet supply stores. Be sure to read and follow the cleaner's directions for use, including testing the cleaner on a small, hidden portion of fabric first to be sure it doesn't stain.
  • If the area still looks stained after it's completely dry from extracting and neutralizing, try any good carpet stain remover.
  • Avoid using steam cleaners to clean urine odors from carpet or upholstery. The heat will permanently set the stain and the odor by bonding the protein into any man-made fibers.
  • Avoid using cleaning chemicals, especially those with strong odors such as ammonia or vinegar. From your pet's perspective, these don't effectively eliminate or cover the urine odor and may actually encourage your pet to reinforce the urine scent mark in that area.
  • If you've previously used cleaners or chemicals of any kind on the area, then neutralizing cleaners won't be effective until you've rinsed every trace of the old cleaner from the carpet. Even if you haven't used chemicals recently, any trace of a non-protein-based substance will weaken the effect of the enzymatic cleaner. The cleaner will use up its "energy" on the old cleaners instead of on the protein stains you want removed.
  • If urine has soaked down into the padding underneath your carpet, your job will be more difficult. In some cases, you may need to take the drastic step of removing and replacing that portion of the carpet and padding.

To Clean Hard Surfaces & Walls

If the wood on your furniture, walls, baseboard, or floor is discolored, the varnish or paint has reacted to the acid in the urine. You may need to remove and replace the layer of varnish or paint. If you do so, make sure the new product is safe for pets. Employees at your local hardware or home improvement store can help you identify and match your needs with appropriate removers and replacements. Washable enamel paints and some washable wallpapers may respond favorably to enzymatic cleaners. Read the instructions carefully before using these products and test them in an invisible area.

3. Figure Out Why Your Pet is Soiling Your House

No matter how good a job you do of cleaning up the areas your pet has soiled, it will continue to be a problem if you don't know why it's happening. First, talk with your vet to rule out medical causes for the behavior by visiting your veterinarian. If your pet is having inside accidents due to illness, no amount of training will keep future accidents from happening. If your pet is healthy, talk to the vet or a trainer about other reasons your pet may be urinating or defecating indoors. (For help, see our tips on Solving Litter Box Problems, Housetraining Your Puppy, and Reducing Urine-Marking Behavior in Dogs and Cats.)

4. Re-Train Your Pet

Finally, in conjunction with cleaning, be sure to teach your pet where you want him to eliminate. To do this, make the "accident zone" unattractive and the appropriate "bathroom" area attractive, and follow our tips on Training Your Dog with Positive Reinforcement to modify your pet's behavior. The re-training period may take a week or more. Remember, it took time to build the bad habit, and it will take time to replace that habit with a new, more acceptable behavior. Treat your pet with patience and give him lots of encouragement!

For more tips and advice on raising a healthy, happy pet, visit the Humane Society of the United States.


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