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Dirty Grout? Here’s What to Do

Dirty Grout

How to Fix Dirty, Stained Grout | Arizona

When your grout gets dirty, it can make your entire floor or shower wall look grimy. At Beyond Stone Solution, we understand how frustrating it is to constantly scrub your grout only to see the dirt return. If this sounds familiar, you’re not alone—and there are solutions.

Common Causes of Dirty Grout

  • Porous Material: Grout is naturally porous, which means it easily absorbs dirt, spills, and moisture.
  • Improper Sealing: If your grout hasn’t been sealed properly (or at all), it's vulnerable to staining and discoloration.
  • High Traffic Areas: Kitchens, hallways, and bathrooms see heavy use, which can grind soiling into your grout lines.
  • Mopping Mistakes: Dirty mop water is one of the biggest reasons grout gets dirty! Dirty mop water often spreads grime into grout lines instead of cleaning them.

Fixes That Work

  • Routine Cleaning: Use a pH-balanced tile and grout cleaner for effective results.
  • Update Cleaning Habits: Use clean water when mopping and avoid bleach-based cleaners that can degrade grout over time.
  • Use Doormats and Rugs: In high-traffic areas, rugs and mats reduce the amount of dirt reaching your floors.
  • Have your Grout Sealed or Color Sealed: A quality grout sealer forms a protective barrier that resists moisture and staining. Color sealing is a complete game changer. With it, you can even change the color of your grout, and it protects from mold, mildew, staining, and creates a uniform, pristine appearance that lasts for years with simple damp mopping.

When to Call Your PRO

If your grout remains dirty despite regular cleaning, or if you're dealing with mold, deep stains, or crumbling grout, it's definitely time to consult your tile and grout restoration PRO. As experts, we have commercial-grade tools and cleaners that go beyond DIY methods. We can also reseal, color seal, or even regrout your tile properly, ensuring long-lasting cleanliness.

Grout that stays dirty isn’t just an eyesore—it can harbor bacteria and shorten the life of your tile. With the right maintenance routine and a little preventative care, your grout can stay clean and your tile can shine like new for years to come.


By Sharon Koehler. This article is one of a series of Caring For It™ articles written and published on behalf of Surface Care PRO Partners.

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