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How To Fix Blotchy Grout: 3 Easy Solutions To Follow

What if you suddenly notice your tiles having issues? To be exact, you’re having a blotchy grout. This would feel so bad to see your tiles having this issue. But fortunately, you can fix it up easily!

Your query is how to fix blotchy grout?

There are a few solutions to this problem that are simpler than you thought. First of all, you need to fix your grout by cleaning it properly. Secondly, you should consider regrouting when required. Finally, you should consider enhancing the sealer to fix the blotchy grout. These are the effective solutions that need to be followed. 

This information is not adequate for you to get the entire part. Make sure to read along if you have some time.

Sounds like what you’re looking for? Let’s dive into it!

What Causes Blotchy Grout?

Before getting to the solutions of the issue we must know the source. We need to know the reasons behind blotchy grout. 

Blotchy grout is a rather typical problem nowadays. There are several causes for this issue. Uneven curing is usually the main cause of variances. 

Then the grout joints that cure faster will be lighter in color. Not only that, but improper grout mixing and excess use of water are also the reasons. In that case, you need to dispose of the grout water.

Moreover, grout can be blotchy even after they are attempted to fix. Because walking over them until they are cured properly can raise the issue again.

3 Easy Solutions To Fix Blotchy Grout

We’ve already come to know about the causes of the issue. However, we’re still left to know the solutions to resolve this. So, the solutions are given below.

Solution 1: Fixing the Blotchy Grout by Cleaning It

The blotchy grout is caused by the accumulation of dirt and cleaning agents. To begin, determine whether discolored grout just requires grout cleaning. 

This cleaning process is to eliminate the build-up dirt that has accumulated over time. Moreover, It might be too much dried out!

Cleaning Slightly Blotchy Grout with Lemon Juice or Vinegar

To begin, use a stiff-bristled brush and simple warm water to scrape unclean grout. Spray with a combination of equal parts vinegar and warm water for several minutes. Now is the time to apply a baking soda paste and vinegar spray.

The grout should be sprayed with lemon juice. This is a gentle disinfectant that eliminates grout stains naturally. Without the use of chemicals, white vinegar can be used to clean grout. Simply pour the vinegar over the grout.

Pour it over the soiled grout lines afterward. Allow the lemon juice or vinegar to settle for 10 to 15 minutes. Scrub with an old toothbrush after that. 

Rinse the area that has been treated. Dry out the place with a towel.

Cleaning Severely Blotchy Grout with Vinegar & Bleach

First of all, get a bowl. Fill the bowl with 7 cups of water and 1/2 cup of baking soda. Then add a third of a cup of ammonia (or lemon juice) and a quarter of a cup of vinegar. 

Now it’s time to make a proper mixture. Pour it into a spray bottle once it’s finished. Spray on the grout and let it dry for about an hour. Scrub vigorously with a scrub brush after that.

Pour some hydrogen peroxide on top of that. Then, for up to 15 minutes, use oxygen bleach. You might also use a commercially available product. Because that would be the most straightforward way to fix blotchy grout.

To be honest, your grout might still require more sophisticated treatment. In that case, contact an expert who can fix it professionally.

But if you’re looking for the best oxygen bleach, we’re here to help you! Two of the best oxygen bleaches are given below:

Product 1
Product 2

These are some of the best oxygen bleachers in terms of their quality.

Solution 2: Regrouting

You might be thinking whether the grout can go bad or not! If it does get bad, regrouting is essential.

Regrouting could appear to be a difficult process. But regrouting can also be completed in roughly a day. Even someone who has never grouted before can accomplish it.

Regrouting entails a two-step procedure. To begin, remove the old, hardened grout from the seams or joints. Complete the task with an oscillating tool and some manual scraping.

Then you make a fresh batch of grout. Apply it to the tile with a grout float and clean it up with a sponge. Wipe away the cloudy residue from the tiles once the grout is dry. 

This is how you get your grout regrouted.

An important point has to be added to this. That is, make sure you don’t walk over the regrouted area until they are completely dry. But you may touch up the grout the next day.

Solution 3: Enhancing Sealer To Darken Grout

Enhancing sealers can occasionally be used to darken the grout color. Enhancing sealer is also more likely to darken some portions of the grout than others. You’ll almost certainly end up with darker grout with irregular regions. 

The regions are basically of a darker and lighter hue. Moreover, enhancing sealers are impregnating sealers that are used to make stone tiles seem better. 

Always test in an out-of-the-way location initially. Try it to see what kind of outcomes you’ll get. In some circumstances, using an enhancing sealer to lighten darkening grout can suffice.


Question: What if some grout joints appear deeper than others?

Answer: Some grout joints may appear to be deeper than others. In this case, the grout will cure unevenly, resulting in color variances. That’s why ensure your grout joints are deep enough. This helps in the problem’s prevention.

Question: Is there any way to recolor the grout without regrouting?

Answer: Yes. You can modify the color of your grout in two ways. You have the option of removing the old and replacing it with new. Altering the color of your current grout is another choice.

Question: Does vinegar darken grout?

Answer: Vinegar can darken your grout. If the grout is not cleaned, it will get an unappealing brown hue. If this is the case, vinegar should be avoided at all costs. To remove the stain, make a paste with oxidizing bleach powder and water.

Final Words

Now you know how to fix blotchy grout!  Because we’ve mentioned the solutions to this issue precisely. 

We hope our directions are helpful enough for you. Good luck fixing that blotchy grout!