How to clean dog urine from tile grout (step-by-step guide)

To clean dog urine from tile grout, blot up as much urine as you can, scrub the grout with a diluted white vinegar solution, rinse, then apply a baking soda paste to lift the odor and rinse again. For old or smelly stains, finish with an enzyme cleaner made for pet urine, and seal the grout once it’s dry so urine can’t soak in next time.

Grout is porous, so urine soaks in quickly and can leave stains and a lingering smell. In this blog post, we will provide you with a step-by-step guide on how to clean urine from tile grout. So, if your furry friend has an accident on your tile flooring, don’t fret – follow these instructions and get rid of that pesky stain in no time!

Cleaning dog urine from tile grout in 10 steps

Here are the basic steps that you need to follow in order to clean dog urine from tile grout:

1Identify where the accident happened

The first step is to identify the source of the urine. If the accident is fresh, blot up as much urine as possible with paper towels or a rag – don’t wipe it around, as that spreads it into more grout lines. If the urine has already dried, you’ll probably see a difference in color between the affected grout and the rest of the grout lines. Once you’ve located the source, it’s time to start cleaning.

2Gather your supplies

Next, you’ll need to gather your supplies. For this job, you’ll need the following:

1. Vacuum cleaner / Broom
2. White vinegar
3. Baking soda
4. Soap
5. Water
6. Bucket
7. Sponge or scrub brush

3Clean with a vacuum cleaner / broom

Start by sweeping or vacuuming the area to remove hair, dust and grit, so you’re not just scrubbing dirt deeper into the grout.

4Make a cleaning solution

Once you’ve removed the visible urine, it’s time to make a cleaning solution. In a bucket, mix together 1/10 white vinegar and 9/10 water. For older or stubborn stains, you can use a stronger mix of up to equal parts vinegar and water. Skip vinegar on natural stone tiles such as marble, travertine or limestone, as acids can etch them – use a pH-neutral stone cleaner instead.

5Let the cleaning solution sit for 1 minute

Once you’ve mixed the cleaning solution, apply it to the tile grout, and let it sit for at least a minute, or a few minutes for older stains. This will give the vinegar time to work on breaking down the urine.

6Rinse and clean with soap

Rinse the tile grout with water, and then clean the area with soap. You can use a sponge or scrub brush to help remove any remaining dirt or grime.

7Apply baking soda

Once you’ve cleaned the area with soap, apply a layer of baking soda to the tile grout. This will help to absorb any remaining odors. Add a little water to make a paste, work it into the grout lines, and let it sit for 10 minutes.

8Rinse the baking soda

After 10 minutes, rinse the baking soda from the tile grout with clean water. Then scrub the area with a sponge or brush to remove any residue.

9Dry the area

Once you’ve cleaned and rinsed the tile grout, dry the area with a towel or cloth. This will help to prevent any mold or mildew from growing in the damp grout.

10Repeat if the stain is still visible

If the stain is still visible after you’ve followed all of the above steps, you can repeat the process until the stain is no longer visible.

Additional tips to clean dog urine from tile grout

In addition to the steps above, there are a few additional tips that you can follow to help remove dog urine from tile grout:

1Use a black light to find hidden stains

If you’re having trouble finding all of the stains, try using a black light. This will help to highlight any areas that may have been missed.

2Try using hydrogen peroxide

Another option for cleaning dog urine from tile grout is to use 3% hydrogen peroxide. Simply apply the hydrogen peroxide to the affected area, and let it sit for 10 minutes. Rinse with water and soap afterward. Test it on a small spot first, as it can lighten colored grout, and never mix it with vinegar in the same container.

3Use cleaners specifically designed for urine

There are a number of cleaners on the market that are specifically designed to remove dog urine. Enzyme cleaners are the most effective for odor, because they break down the uric acid crystals that vinegar and soap leave behind. If your dog can still smell the old spot, they’re more likely to pee there again, so this step is worth it for repeat accidents. Follow the label and let the cleaner sit as long as directed.

4Avoid ammonia and bleach mixes

Don’t use ammonia-based cleaners: urine contains ammonia, so the smell can draw your dog back to the same spot. Never mix bleach with vinegar or ammonia, as this releases toxic fumes, and keep your dog out of the room until floors are rinsed and dry.

5Use a protective spray

In order to avoid future stains, apply a grout sealer once the grout is clean and completely dry. Sealed grout absorbs much less liquid, so future accidents wipe up more easily. Look for a sealer suited to your type of tile and grout. If you also have laminate in your home, read our tips on how to keep laminate floors clean with dogs.

Final thoughts – How to clean dog urine from tile grout

Cleaning dog urine from tile grout can be a challenging task. However, by following the steps above, you should be able to remove the stain quickly and easily. If the stain is stubborn, you may need to repeat the process a few times. Once the stain is gone, be sure to protect the area with a grout sealer to prevent future stains. And if a house-trained dog suddenly starts having accidents, check in with your vet, as a urinary tract infection or other medical issue could be the cause. For accidents on furniture or rugs, see how to clean dog urine from a microfiber couch and how to clean dog urine and poop from a cowhide rug.