How do you change gray grout to white?

Author: Sonya Zboncak  |  Last update: Sunday, July 5, 2026

Grout can be recolored by removing the grout and replacing it with new grout that has been tinted the color you want. Removing and replacing the grout works for all types of tiles.

Can you change grey grout to white?

Another way to change grout color is to replace it entirely.

First using the power tool, then the flathead screwdriver and utility knife, then the shop vac, remove the grout from between the tiles. After you're finished, replace the grout with the tile grout color you've selected.

Can I paint grey grout white?

Ideally, you'd remove the existing grout and replace it. But realistically, you can just paint over it. You need a good, oil based paint that will grab and even sink into the surface. Latex paint will just sit on the surface and eventually peel off.

How do you cover grey grout with white?

How To Change Grout Color: Remove and Replace
  1. Remove existing grout with an oscillating tool or utility knife, taking care to avoid damaging the tiles.
  2. Clean and vacuum grout joints to remove dust and debris. ...
  3. Apply new grout.
  4. Allow to completely dry before walking on it.

Do I have to remove all old grout before regrouting?

Removing the old grout is essential for the best results, as applying new grout over the old can lead to poor adhesion and reduced longevity. For cleaning, a non-abrasive paste made from baking soda and water works well, especially on enamel surfaces. Ensure the area is completely dry before starting to re-grout.

Changing Grout Line Color

What is the best way to grout over old grout?

Just scrape deep enough, clean well, allow to dry, then apply. I have done this with success of floors with no issues. Dying grout is another option too. Clean, dry, apply.

Is regrouting difficult?

Regrouting your bathroom tile is a relatively straightforward and approachable DIY home improvement project that can make a dingy bathroom wall look like new. Whether your grout is cracking and falling out or is simply discolored and in need of a refresh, regrouting can make a world of difference.

Will bleach ruin gray grout?

Colored grout is a mixture of cement, water, sand and colorant. As there's colorant involved, one of the main rules about treating colored grout is simple: Avoid bleach. Note that this includes hydrogen peroxide, which has mild bleaching effects.

Is painting grout a good idea?

Paint is not a good solution for changing the color of your floor, whether it's tiled or not. If you attempt to paint grout lines on your floor, you will find that it quickly deteriorates beneath foot traffic and everyday cleaning. The same goes for wet surfaces, such as shower tile.

How do you make GREY grout lighter?

The most thorough and complete solution is to remove the grout and install new, grout in the color of your choice.

What paint will stick to grout?

In contrary to ordinary wall paints, which tend to peel off or flake, the epoxy paint which is available in many colours will stick; however, a second coat may be needed. Tile grout paint is recommended only for sealed or glazed tiles, but not for the unfinished or raw tiles such as terracotta or natural stone tiles.

Why not use white grout?

What is important to know is that white grout will show dirt more, therefore you'll have to spend more time cleaning it.

Do grout pens work?

This really works! The grouting around the tiles in our kitchen and bathroom was looking very tried with several black damp spots. The grout pen covered it all in one coat and was very simple and quick to use. We added an extra coat on the very stained sections and now it all looks like fresh grouting.

How do you paint GREY grout white?

Can you paint grout lines?
  1. Use specialized grout paint. The most important thing to get right when painting grout is the paint – you can't slap on any old paint, after all. ...
  2. Clean the grout thoroughly. ...
  3. Clean away paint on tiles immediately. ...
  4. Always apply a sealant to protect the new color.

Is it expensive to change grout color?

Changing grout color is an inexpensive DIY project. If you're painting the grout with a colorant, the supplies should cost you less than $40.

Why does my white grout look GREY?

If you haven't kept up with grout maintenance, the once-white grout lines between your ceramic tiles may now appear gray, brown, or black. This discoloration is an accumulation of dirt, food particles, and—in the case of shower tile grout—mold.

How long will grout paint last?

Answer: 3 to 5 years.

How to change grout color?

How to Change Grout Color With a Colorant
  1. Scrub the Grout Lines. Use a commercial grout cleaner to thoroughly scrub the grout lines with a small stiff scrub brush. ...
  2. Test the Colorant. ...
  3. Clean and Rinse the Tile and Grout. ...
  4. Mask Off the Tile Surfaces (Optional) ...
  5. Apply Colorant. ...
  6. Wipe Off Excess Colorant. ...
  7. Seal, if Necessary.

Does grout dye really work?

Color sealing your grout may be a recent innovation, but it is certainly not just a fad. Quality color sealers repel oil and water-based liquids, which will prevent food and beverage stains. In addition, they contain constant acting mildewcides and other agents that inhibit the growth of bacteria and mildew.

How do you whiten GREY grout?

Mix hydrogen peroxide and baking soda in a bowl to form a thick paste. Spread the paste onto your grout using an old toothbrush to completely coat the area to be cleaned. Let it soak in for about 5 to 10 minutes. Like the previous method, use a brush with firm bristles to scrub the grout.

Can you stain grey grout white?

Yes, you can absolutely stain grout a different color. Whether you want to go lighter, darker, or experiment with a whole new shade, staining grout offers versatility in enhancing your tile surfaces.

How long does it take for bleach to whiten grout?

Mix bleach and water in a clean spray bottle to tackle tub grout stains and apply the solution onto the grout lines. Allow it to sit for about 20 minutes before scrubbing the stains with a small brush or toothbrush.

What are the biggest grout mistakes?

4 of the Most Common Regrouting Mistakes
  • Uneven Grouting. ...
  • Incorrect Timing. ...
  • Not Mixing Properly. ...
  • Using Too Much Grout.

Why is regrouting so expensive?

The average cost to regrout a shower ranges between $900 and $2,500. Key factors that affect the cost include the shower's dimensions, the type of grout used—such as high-quality epoxy grout known for its mould and stain resistance—and the labor involved in removing the old grout.

Do grout rakes work?

A dedicated grout rake or a Stanley blade is best for removing existing grout. Grout rakes can be both mechanical and electric. Any electric grout rake is usually 240V and has variable speeds. The Rubi Grout Remover helps to remove grout surrounding ceramic and porcelain tiles.

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