How to Regrout the Tiles: The Best Expert Guide (2022)

A lot of people clean their grout every day, but over time, it can become dirty, gritty, cracked, and missing in places. If your floor looks old and worn, you can regrout the tiles to make them look new again. It’s a job that most people who live at home can do. In fact, it’s not at all hard. Getting rid of old grout takes some time and patience, but it will let you use new grout. This is what you need to do if you want your bathroom or bedroom to look newly tiled. You don’t have to remove all of the grout, or even most of it, but eliminating the dirty grout on the surface helps the fresh grout adhere to the surface. There is cement in the grout, which is why it is so hard.

Time: 3 hours per 16 square feet

Tools and materials:

Things You Will Need

  • Oscillating multitool
  • Grouting compound
  • Brush
  • Dust Mask
  • Dustpan
  • Dust Sheet
  • Safety gloves
  • Vacuum cleaner
  • A small chisel
  • Scrapper
  • Goggles
  • Hammer
  • grout float
  • A small plastic tub
  • Sponges
  • Bucket for water
  • Soft cloth
  • Grout sealer
  • Paintbrush

Should I grout my tile floor myself?

Grouting tools

While doing this project on your own can save you money, it’s usually not a good idea. Regrouting tile is a lot of work, and you need special tools like a grout saw to do it. There’s a chance that you might not be able to cut in new grout lines straight and clean if you don’t know what you’re doing. This can leave ugly stripes on the floor.

You can make your tile grout look better:

Tile has always been a good choice for floors, walls, and other surfaces because it is durable and lasts a long time. Before the tile itself, it’s usually the grout that starts to break down or show its age. When the grout is dirty or dull, the whole tile surface can look old or worn. It’s the best way to bring new life to your tiles.

Prepare before you start:

Grout removal is a nasty job that may spread dust all over the place, so set up some plastic sheeting around your work area. Make sure you have a dust mask and eye protection on hand to keep yourself safe. A water spray bottle and a vacuum cleaner may also assist keep the dust at bay. In a moment, we’ll go through it in further detail.

Before you begin regrouting tiles, put on gloves, eye protection, and a dust mask. The grout will generate a great deal of dust and particles. Put down a dust sheet if you’re tiling a wall.


In a bathroom, make sure that all of the plugs are in. Using this method, you can prevent dust and old grout from entering your drains.

How much grout do I need to remove before re-grouting?

Make sure you wear a face mask because it’s a dirty job. Putting plugs in the sink or bathtub when you’re re-grouting a bathroom or kitchen splashback will keep dust and debris from getting into the pipes.

To make sure the new grout has a strong base and a bigger surface area on the sides of the tiles, the old grout should be dug out at least 3mm deep.

Do not try to apply new grout over the old grout that has been damaged. “Skim coating grout” is when new grout is just put on top of the old grout. The new grout won’t be able to stick properly to the old grout. Over time, the new grout will start to flake and chip off.

Following are two ways to get rid of old grout.

Manually removing grout

Remove the old grout

The best way to save money is to use a grout rake, but it can be a lot of work and take a long time. If you want to re-grout a lot of space, it’s a good idea to have a few extra blades.

Just put the grout rake in the joint, move the rake up and down along the grout line, and press hard on the joint. Soon, the grout will start to powder and fall. Remember that grout can be hard, so this takes time.

Take your time, because one slip could damage the edge or surface of the tiles. Check to make sure all of your grout lines are clean. Make sure they are free of dirt and dust. It’s also important to wipe away any extra adhesive residue with a damp sponge after completing the work.

Machines are used to remove grout.

Grouting osci tool

The best way to get rid of grout is to use an oscillating tool like the Fein Multimaster and a saw blade made of tungsten carbide.

Work the blade into the grout between two tiles. Avoid putting too much pressure on the blade as you work it into the joints. The tool should do most of the work, so apply gentle pressure and let it do most of the work for you.

This is how it works: You start by making a straight cut. Then, you move the blade up and down slowly to remove more grout from the seam. When you work with tiles, be very careful not to damage the edges of the tiles.

Use a grout rake to remove any bits of material that the power tool couldn’t get out.

Getting rid of old grout, debris, and even dust from the floor:

Before regrouting the tiles, prepare your sponge. Make sure that all of your grout lines are clean and free of debris and dust, and that there isn’t any extra adhesive residue by wiping them down with a damp sponge. Dip the tile sponge into the bucket of water and wring out any excess water, leaving only a damp sponge for the job.

Clean Tile surface

This way, you can clean all the grout off of the tile with a damp tile sponge. Use the margin trowel to get rid of the extra grout in the areas where the grout is expanding. This will make those areas completely clean for caulking.

Rinse and repeat. Make sure to rinse the tile sponge again and repeat this step until the grout is clean and there are no hazes on the tile. This is the last thing you should do. It’s important to wring out as much water as possible each time you clean the sponge. So that the grout doesn’t crack, try to keep some joints a little wet.


Because this is not the same as how to remove tiles, you must be extra careful not to damage the tile.

Coloring the Grout

To make your grout look new again, you might want to use a grout colorant. Grout colorants are added to your existing grout. The process isn’t difficult, but it takes a lot of time and effort. Always remember that this method works best if your grout is porous (as most grout is) and your tile is not porous (as most tile is).

When tile meets other materials, like hardwoods or tubs, colored silicone caulk is sometimes used to make sure the tiles stay in place. Grout colorant won’t work in these places. Because they will get dirty and stained, don’t choose a grout color that is white or is very light. A darker color will make the grout less likely to get stained by footprints, so you won’t have to worry as much about it.


Both premixed and powdered grout comes in a limited range of colors. To make more unique colors, you can add grout pigment to the mix when you’re making the grout.

Applying the new grout

Filling grout on tiles

Fix The Grout Tile

Grout is offered in two forms: a dry powder that must be blended with water and a second premixed semi-liquid paste in a variety of container sizes. Both of the products of the regrout the tiles are satisfactory.

Unsanded grouts are better for grout joints less than 1/4 inch wide, whereas sanded grouts perform best for broader grout lines.

Using a margin trowel, combine powdered grout in a small bucket. To begin, fill a plastic bucket halfway with 1/2 of the suggested quantity of water, followed by 1/2 of the recommended amount of dry grout powder. After fully mixing, gradually add additional water and grout powder until you have a complete batch, or enough to cover around 3 to 4 feet square. The proper consistency of the mixture should be smooth, paste-like, and barely pourable.

Certain grouts may specify that the mixture is allowed to rest (slake) for a brief time before application. If this is the case, follow the manufacturer’s instructions.

Fill the Grout Joints.

Use a sponge that is wet to clean up any extra grout. Check to see if the sponge is dry. If it’s wet, too much water will make it hard to clean. With a rubber grout float, scoop up a lot of grout and spread it on the tile. Then spread the grout over the joints, holding the float at an angle of about 60 degrees and pressing the grout into the joints until it goes all the way into the gaps. Work in different directions to make sure the joints are filled. Make sure there isn’t any extra grout and move it to another area of tile, or add more tile if needed. When all of the joints are filled, do the same thing again.

Moving the grout float across the joint lines in this way will make sure that the fill is even. There may be more work to do on the joints if the edges of the tiles are curved or beveled. Using tools, you can remove the top layer of grout, making the joint look more professional. If you don’t have special tools, you can just run the round end of a pencil eraser along the joint when it’s a little dry. You can also buy special tools for this.

Sponge the Joints and Tiles

You can remove the grout from the seams. Make light strokes across the surface of the tile with the sponge, but don’t press too hard.

This takes a long time. Clean your sponge again and wipe it across the tile, moving diagonally across the joints, until all the grout is gone. Afterward, you won’t have to worry about cleaning all the tiles. Rinse the sponge in the water often and change the water when it gets dirty.

Remove the Grout Smog.

Afterward, the grout will have dried completely or as directed. The surface of the tiles will still have a faint haze, but it will be gone. Use a soft cloth to clean the surface of the tiles and remove any haze. It’s your choice whether or not to use a haze-removal product to clean and polish the tile floors.


Standard grout that comes in powdered form should be sealed to keep stains from getting on it (after the grout has fully cured). Do not seal many types of pre-mixed grout.

Apply final sealer.

You should use a grout sealant after you’ve cleaned, colored, or replaced your old grout. This will keep it safe and make it easier to clean when you do it again. Grout sealants keep your grout from getting dirty, and they keep it from getting wet and moldy. Use a penetrating sealer even though it won’t make your grout completely waterproof. It will help keep water from getting so far down into the grout as normally would.

It is worth it to spend a little time and money to protect your hard work and your new tile surface. Start by looking at giving your grout a new look before you start to tear out your tile. Use these tips to clean up the grout and you might get the same results as replacing your tile for much less money.

FAQs on how to regrout the tiles

Q1. Can you put new grout over old grout on a tile floor?

No. Before applying new grout, you’ll need to remove the old one.

Q2. Do I have to remove all old grout before Regrouting?

Before regrouting the tiles, make sure to get rid of the old grout that isn’t clean. This will give your new grout something to stick to. All in all, grout is mostly made of cement. There isn’t any need to remove a lot of the grout. You just need to get it far enough away from the surface so that new grout can stick.

Q3. How do you Regrout tiles without removing the old grout?

  • Take care to choose the right material. Grout is mostly made of cement, so it tends to get dirty and break down over time.
  • Make Space for the New App.
  • Clean the area where you work.
  • Putting in the New Grout.
  • Seal the joints with sealant and caulk.

Q4. How can you regrout without removing tiles?

You’ll need the proper equipment to remove the grout without harming the tile.

Q5. What are regrout the tiles benefits?

Make your tiles new again by refinishing them. Moisture can cause structural damage.

Q6. How long does it take to regrout tiles?

There is no one-size-fits-all answer to this question. If you apply the grout to a small area, it will take roughly 30 minutes to do the job.

Q7.What tools do I need to regrout tiles?

Sandpaper, non-sanded grout, joint compound, and tile nippers are all necessities. All of these may be purchased at a local home improvement shop or online.

Q8.Is it cheaper to regrout the tile or retile?

Regrouting is cheaper than re-tiling, but it doesn’t last as long. The short-term cost of not re-tiling isn’t worth the long-term benefit. With re-tiling, you can also choose a new look for your shower by picking out new tiles.

Q9.How much grout do I need to remove to Regrout?

With a Grout Getter, you should scrape out the tile grout about 1/8′′ to 3/16′′ below where the tile meets the wall. This will give enough space for the new grout to fill in the gaps between the grout joints. The old grout that is still in the joints will make a good rough surface for the new grout to stick to.

Q10.Do grout pens really work?

The answers is most likely “no,” so we don’t think you should use a grout pen on all of your grout. You can find out more about why grout pens are not a good way to change the color of your tile’s grout.

Q11.Do you need to seal grout?

Most of the time, grout is made of cement, which makes it porous. This is why it can quickly soak up liquids. For this reason, grout sealing is important for your tile surfaces. Mold and mildew won’t grow on your grout if you seal your grout, which also helps.

Q12.Can you Regrout penny tile?

Penny round tile would be a lot of work to re-grout. Cut out at least half of the depth for grout to hold.

Q13.How often should you Regrout tiles?

When to Clean Your Tiles You don’t have to do it at a certain time because it’s made of cement. Until something gets inside or breaks it, it will stay stable. The best thing to do is to keep an eye on the grouting between your tiles. Look for any signs of mold or broken grout.

Q14.Does Regrouting damage tiles?

tiles are re-groomed. Cracked grout is a big problem because it lets water get under the tiles, which makes it more likely that mold and mildew will grow there. The longer you wait to fix broken grout, the more likely you are to need water damage repair later on.

Q15.Is it expensive to replace grout?

The national average cost of replacing the grout with new materials is $1.68 per square foot, with a range of $1.57 to $1.78 per square foot in the cost of the materials. Replace grout: the average cost in the U.S.