Grout Repair and Sealing in Columbus, OH

Our color sealing technology not only cleans your grout but permanently transforms its appearance, saving you time and money on constant maintenance. Dirty grout lines can make even the cleanest homes look neglected. Regular cleaning often isn't enough to address deep stains or deterioration.


We use cutting-edge techniques to thoroughly clean your grout lines before applying high-quality sealants that prevent future staining and water damage. Our process works on all types of tile surfaces, including bathrooms, kitchens, and entryways.


Unlike temporary solutions that require frequent reapplication, our professional grout services provide lasting results. You can trust our experienced technicians to deliver superior workmanship at competitive prices. We serve the entire Columbus area and take pride in transforming tired tile surfaces into fresh, clean spaces that enhance your home's appearance and value. 

Our Professional Grout Repair Process

Our specialized techniques address common problems like cracked, stained, or moldy grout to restore the beauty and functionality of your floors and walls.

  • 1. The Process of Grout Restoration

    We begin every restoration project with a thorough assessment of your grout's condition. This helps us identify problem areas and determine the best approach for repair. For minor damage, we clean the existing grout using professional-grade products that remove dirt, mold, and stains that regular cleaning can't touch.

  • 2. Options for Shower and Bathroom Grout Repair

    Bathroom environments present unique challenges due to constant moisture exposure. We offer specialized solutions for these high-humidity areas, including waterproof grout formulations that resist mold and mildew growth.

  • 3. Kitchen Tile and Backsplash Grout Solutions

    Kitchen surfaces face unique challenges from food spills, grease, and cleaning chemicals. We offer specialized grout solutions designed specifically for these high-use areas.

  • 4. Maintaining Sealed Grout for Longevity

    To maximize the lifespan of your sealed grout, regular cleaning with pH-neutral cleaners is essential. Avoid harsh chemicals like bleach or ammonia, as they can break down sealants prematurely.

Assessing Grout Damage

Proper evaluation of grout condition is crucial for maintaining beautiful tile work in your home. Knowing what to look for helps you decide whether simple cleaning or complete replacement is needed.

Identifying Grout Discoloration and Cracks

Grout discoloration is one of the most common issues we see in Columbus homes. You might notice your once-white grout has turned gray, yellow, or even black in areas exposed to moisture. This often indicates mold growth, especially in bathrooms and kitchens. Stains from spills can also cause permanent discoloration if not cleaned promptly.


Cracks in grout lines are another clear sign of damage. These typically appear as thin lines running along tile joints and can range from hairline fractures to larger gaps where grout has completely fallen out. We often find these issues in high-traffic areas or where house settling has occurred.


Moldy grout isn't just unsightly—it's a health concern. If you see black spots or green patches developing, this indicates moisture penetration and mold growth that requires immediate attention.

When to Opt for Grout Cleaning vs. Replacement

Professional grout cleaning works well for surface-level discoloration without structural damage. You should consider this option when your grout shows even discoloration but remains intact without cracks. We use specialized cleaning solutions that penetrate porous grout to lift stains that regular household cleaners can't touch.


Replacement becomes necessary when grout is cracked, crumbling, or has deep-set stains that cleaning won't fix. If more than 25% of your grout is damaged or missing, complete replacement is usually more cost-effective than spot repairs.


We recommend installing stain-proof grout during replacement. These advanced formulas contain polymers that resist staining and require less maintenance over time. Refreshing discolored grout with colored sealers is another alternative that can add years to your grout's life without full replacement.

Do-It-Yourself Grout Maintenance

Begin your grout maintenance by vacuuming the area to remove loose dirt and debris. Mix your chosen grout cleaning solution according to package directions or prepare your homemade cleaner.


Apply the solution to grout lines and let it sit for about 10 minutes. This allows the cleaner to penetrate and loosen embedded dirt. Use your brush to scrub in small circular motions, focusing on stained areas.


Rinse thoroughly with clean water and allow the surface to dry completely—usually 24 hours. A shop vacuum with a hose attachment works well for removing excess water.


For sealing, ensure grout is completely dry before application. Apply a thin layer of tile gap sealant or grout sealer using your foam brush. Work in small sections and wipe away excess before it dries. Most DIY shower grout seals require a second coat after 2 hours for maximum protection.

FAQs on Grout Repair and Sealing

At Columbus Flooring Company, we restore beauty and protection to your tile surfaces with professional grout repair and sealing services. Here are answers to common questions about preserving your tile investments throughout central Ohio.

  • How do I know if my grout needs repair or resealing?

    Signs your grout needs professional attention include visible cracking, crumbling, discoloration, staining that doesn't clean away, water absorption (darkening when wet), mold or mildew growth, and loose or hollow-sounding tiles. In Columbus homes, grout in bathrooms and entryways typically deteriorates faster due to moisture exposure and winter salt damage. If your grout is over 2-3 years old and has never been professionally sealed, it likely needs attention to prevent moisture damage to underlying surfaces.

  • How much does professional grout repair and sealing cost in Columbus?

    Professional grout repair typically costs $1.50-$3.50 per square foot depending on damage extent and tile size. Sealing services average $0.75-$1.25 per square foot for standard clear sealers. Color sealing, which both repairs and colors grout, ranges from $2.00-$4.00 per square foot. For an average Columbus bathroom (40-60 sq ft), expect to pay $60-$210 for sealing or $80-$240 for repairs. Kitchen floors (100-200 sq ft) typically range from $75-$250 for sealing and $150-$700 for repairs.

  • What's the difference between clear sealing and color sealing for grout?

    Clear grout sealing applies an invisible protective barrier that prevents staining and moisture penetration while maintaining your grout's current appearance. Color sealing applies a pigmented sealer that simultaneously colors, seals, and repairs minor grout damage in one application. Color sealing is ideal for older Columbus homes with permanently stained or discolored grout, allowing you to completely change grout color while adding superior protection that lasts 3-5 years, compared to 1-2 years for standard clear sealers.

  • How long does the grout repair and sealing process take?

    For an average Columbus bathroom, grout repair and sealing typically takes 4-6 hours to complete. Kitchen floors generally require 6-8 hours. Larger areas can usually be completed within one day. The surface needs to remain completely dry for 24-48 hours after sealing to allow proper curing, particularly important in Columbus's occasionally humid climate. We provide temporary walkway protection for necessary access during this curing period.

  • Can you repair cracked grout in shower areas that are constantly exposed to water?

    Yes, we specialize in repairing and sealing grout in high-moisture areas like showers. For these spaces, we use commercial-grade epoxy grout repairs that provide superior water resistance and flexibility to accommodate the slight structural movements common in Columbus homes during seasonal changes. After repairs, we apply premium waterproof sealers specifically formulated for continuous moisture exposure. For severely damaged shower grout, we may recommend complete regrout with epoxy grout for maximum longevity.

  • How often should grout be professionally sealed in Columbus homes?

    For Columbus homes, we recommend professional grout sealing every 1-2 years for high-traffic or moisture-prone areas like entryways, kitchens, and bathrooms. Less frequently used areas may extend to 2-3 years between applications. Factors affecting sealing frequency include traffic levels, cleaning product choices, and exposure to Columbus's seasonal conditions – particularly winter salt and moisture. Color-sealed grout typically requires reapplication every 3-5 years. We offer annual maintenance programs with discounted rates for recurring service.