How To Clean Grout On Tile Floors
Grout is the unsung hero of your tile floors. It holds everything together, but it’s also a magnet for dirt, grime, and, if you’re a dog owner, the occasional “accident.” Over time, that pristine white grout turns into a dingy, discolored mess.
But here’s the good news: cleaning grout doesn’t have to be a nightmare. With the right tools, techniques, and a little elbow grease, you can restore your tile floors to their former glory.
And yes, we’re even gonna tackle the dog pee situation. Let’s dive in.
Why Grout Gets Dirty (and Why It’s So Hard to Clean)
Grout is porous. That means it’s like a sponge, soaking up everything from spilled coffee to muddy paw prints.

And if you’ve got a dog, well, let’s just say grout is basically a pee magnet. Over time, dirt and bacteria build up, and if you don’t clean it regularly, it becomes a breeding ground for stains and odors.
🐾 Join The Dog Recipe Club! 🐶
Become a Member for Just $2/monthEvery week, receive a printable PDF packed with 10 fresh, dog-approved recipes to keep your pup happy, healthy, and excited for mealtime! 🦴
Join our pack of happy dog parents making tails wag with delicious homemade treats! 🦴
Join The Club Today! 🐾The challenge? Most people don’t clean grout properly. They mop over it, scrub it half-heartedly, or use the wrong products. The result? A temporary fix that doesn’t last. But don’t worry—we’re about to change that.
The Tools You’ll Need

Before we get into the nitty-gritty, let’s talk tools. You don’t need a ton of fancy equipment, but having the right stuff makes all the difference.
Here’s what you’ll need:
- Stiff-bristled brush or grout brush (a toothbrush works for small areas)
- Microfiber cloths
- Bucket
- Grout cleaner (store-bought or DIY)
- Steam cleaner (optional but highly effective)
- Baking soda and vinegar (for DIY cleaning or dog pee stains)
- Hydrogen peroxide (for tough stains)
- Protective gloves (because nobody wants chemical burns)
If you’re looking for a powerful grout cleaner, the one below is fantastic (but it’s quite strong). If you have a pet I highly recommend checking out this DIY grout cleaner recipe.
Step-by-Step Guide to Cleaning Grout

1. Sweep or Vacuum First
Start by removing loose dirt and debris. If you skip this step, you’re just pushing dirt around when you clean. Use a broom or vacuum with a hard floor attachment to get into the grout lines.
2. Choose Your Cleaner
You’ve got two options here: store-bought or DIY.
- Store-Bought Cleaners: Look for a pH-neutral grout cleaner.
- DIY Cleaner: You can mix equal parts baking soda and water to form a paste. For tougher stains, add a splash of hydrogen peroxide.
3. Apply the Cleaner
Spread your chosen cleaner over the grout lines. If you’re using a paste, let it sit for 10-15 minutes to break down the dirt.
4. Scrub Like Your Life Depends on It
Grab your stiff-bristled brush and start scrubbing. Work in small sections, using circular motions to lift the dirt. This is where the elbow grease comes in—don’t be afraid to put some muscle into it.
5. Rinse and Dry
Wipe away the cleaner with a damp microfiber cloth. Then, dry the area thoroughly to prevent water spots or residue.
6. Seal the Grout (Optional but Recommended)
Once your grout is clean and dry, consider applying a grout sealer. This creates a protective barrier that repels dirt and stains, making future cleanings way easier.
Special Section: Cleaning Dog Pee from Grout
If you’re a dog owner, you know the struggle. Accidents happen, and when they do, grout is often the victim. Here’s how to handle it like a pro:
- Blot Immediately: Use paper towels or a cloth to soak up as much liquid as possible. Don’t rub—this can push the pee deeper into the grout.
- Neutralize the Odor: Mix equal parts white vinegar and water in a spray bottle. Spray the area and let it sit for 10 minutes. Vinegar neutralizes the ammonia in dog pee, eliminating the smell.
- Deep Clean: Apply a baking soda paste (baking soda + water) to the stained area. Let it sit for 15 minutes, then scrub with a brush. Rinse and dry thoroughly.
- For Stubborn Stains: If the stain persists, use hydrogen peroxide. Apply it directly to the stain, let it sit for 10 minutes, then scrub and rinse.
Pro Tip: If your dog has a favorite “spot,” consider using an enzymatic cleaner. These break down the proteins in urine, preventing repeat accidents in the same area.

Preventing Future Grout Stains
Cleaning grout is one thing, but keeping it clean is another. Here are some tips to minimize future messes:
- Mop Regularly: Use a pH-neutral cleaner and avoid soaking the floor. Excess water can seep into the grout and cause discoloration.
- Wipe Up Spills Immediately: The longer a spill sits, the harder it is to clean.
- Use Rugs or Mats: Place them in high-traffic areas or near your dog’s favorite spots to protect the grout.
- Reapply Grout Sealer: Do this every 6-12 months to maintain that protective barrier.
FAQs
Q: Can I use bleach to clean grout?
A: Yes, but sparingly. Bleach can weaken grout over time and isn’t safe for colored grout. Stick to gentler cleaners unless you’re dealing with mold or mildew.
Q: How often should I clean my grout?
A: Aim for a deep clean every 3-6 months, depending on foot traffic and mess levels. Regular mopping helps maintain it in between.
Q: What if my grout is beyond cleaning?
A: If cleaning doesn’t work, you might need to regrout. It’s a bit more labor-intensive but can make your floors look brand new.
Q: Is steam cleaning safe for grout?
A: Yes! A steam cleaner is one of the most effective tools for cleaning grout. Just make sure to follow the manufacturer’s instructions.
Conclusion
Cleaning grout doesn’t have to be a chore. With the right tools, techniques, and a little effort, you can keep your tile floors looking fresh and clean—even with a dog in the house. Whether you’re dealing with everyday dirt or the occasional accident, this guide has you covered. So roll up your sleeves, grab that brush, and get to work. Your grout (and your floors) will thank you.
And remember: consistency is key. Clean a little often, and you’ll never have to face a grout nightmare again. Now go forth and conquer those tile floors!

I’ve spent 10+ years in dog training, digging into what makes dogs (and their humans) tick. At Smart Dog Learning, I share my no-nonsense, fun approach to training so you can enjoy life with a well-behaved, happy pup—no boring lectures, just practical results 😉