How do pros remove grout?

Author: Mrs. Macy McDermott  |  Last update: Wednesday, September 3, 2025

There are two main ways you can remove dried grout from tile. The first is using a power tool called an oscillating tool. Make sure to attach a tip that's specifically made for grout removal. The second way is using a manual grout removal tool, like a grout saw or joint scraper, with a carbide blade or tip.

What is the best way to remove grout?

Use warm water and wipe it over the surface of the tiles with a sponge. Then using some fine wire wool, rub gently over the grout which will begin to dissolve and rub off at the same time. Once the tile is clean and has no more hardened grout, wipe over with a damp cloth and leave to dry.

How do professionals remove grout haze?

If the grout haze has hardened and does not come off with a scrubbing tool, use a mild vinegar and water cleaner. Mix together 1 part vinegar to 4 parts warm water. Then, use a mop or a nylon scrubber to spread the cleaner and remove the grout haze. Make sure you use a scrub pad that is soft and made of nylon.

Why do contractors not seal grout?

Whoever installed your floors most likely did not seal the grout because it needs time to harden and cure completely.

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.

How to Cut/Remove Grout with an Oscillating Multi Tool - WonderBlade™

Is it better to regrout or retile?

If the tiles themselves are damaged, retiling is the better option. You might also spring for new tiles as part of a full bathroom remodel. If the tiles are still in good condition, but the grout is chipping or discolored, regrouting is a cost-effective alternative.

How deep should I go when removing old grout?

If you're regrouting a bathroom or kitchen splashback put the plugs in the basin or bath to stop dust and debris from blocking your drains. The grout should be dug out a minimum of 3mm deep (preferably deeper) so that new grout can have a firm base and a larger surface area of the sides of the tiles to adhere to.

How often should you reseal grout?

For high-traffic areas, like the main bathroom, you should consider sealing it every six months, while low-traffic areas like the guest bathroom can be resealed every two years. If you are using epoxy grout, it might not be necessary to reseal it as it is highly water-resistant.

Why is grout so hard to clean?

Firstly, grout is very porous, and it easily collects dust, dirt, and grime.

Do most tile installers seal grout?

Many companies don't automatically include grout sealing in a job with new tile flooring for a few reasons. First, companies can't seal grout until at least 48 to 72 hours after applying grout. By that time, bathroom remodelers typically have already cleaned up from the job and left your home.

Will a magic eraser remove grout haze?

Once you've activated the micro-scrubbers inside, your Magic Eraser is good to go. Start by swiping it firmly across the desired surface. In just a few swipes, you should start to see grout messes and buildup begin to disappear!

What happens if you wait too long to wipe grout?

As go-to grout and tile care specialists, The Grout Medic truly wants what is best for your tile. Waiting too long to wipe grout could result in unsightly grout haze. Don't wait too long to wipe off grout!

How do professionals clean grout?

Steam cleaning is one of the most powerful ways to clean grout without the use of harsh chemicals. Professionals often use steam to loosen the dirt and other particles trapped in the grout without needing to scrub manually.

Does vinegar destroy grout?

Grout is porous and usually sealed to resist stains. However, acid can degrade these silicone-based sealants, causing them to break down and wash away. Contrary to popular belief, this can happen with just one application of vinegar.

Can you put new grout over old grout?

You don't have to remove all of your old grout to apply the new grout. The new grout can be applied right over the top of the existing grout. You will need a grout removal tool, which is a small tool with a sharp blade capable of chipping away the grout.

How do you clean severely dirty grout?

The most effective and simple way to clean your grout is using distilled white vinegar mixed with water. If the grout is heavily stained and requires lightening, you may decide to first apply bicarbonate of soda paste before you begin cleaning.

Why don't contractors seal grout?

The best answer, in a word, is money. It costs more time and material to seal grout and there is little or no perceived benefit (until, of course, the grout gets stained or starts to crack). A superior product would cost more to purchase and install, again for no perceived benefit over the less costly unsealed grout.

What makes grout easier to remove?

To remove grout from the surface of your tile, try the sugar and water method. In a small bowl, mix together 1 cup of sugar and 1-gallon hot water. This mixture will soften the grout, allowing you to scrub it away. Using a clean cloth, sponge, or brush, apply the sugar and water mixture to the grout you want to remove.

How many years does grout last?

A question we're often asked is, “how long should grout last in my bathroom last?” Grout doesn't last forever and has a lifespan of between eight and sixteen years, depending on your upkeep and treatment in your shower area specifically.

What are the disadvantages of sealing grout?

The Drawback of Using Grout Sealer

Moisture can still pass through most sealers, meaning grout isn't entirely waterproof even when sealed. Over time, grout in areas like bathrooms will naturally stain or show signs of aging, regardless of sealing.

How much does it cost to regrout a shower?

On average, the cost to regrout a shower is between $600 and $2,500 (or $10 to $25 per square foot). Prices hinge on the size of the shower, the type of grout, and how much old grout needs to be removed. We break down what you can expect to pay below.

What is the easiest way to remove old grout?

There are two main ways you can remove dried grout from tile. The first is using a power tool called an oscillating tool. Make sure to attach a tip that's specifically made for grout removal. The second way is using a manual grout removal tool, like a grout saw or joint scraper, with a carbide blade or tip.

Are grout pens any good?

Grout pens will only temporarily cover your grout's discoloration. That's probably why they are the cheapest option available. We run into the infamous grout pen issue nearly every other week. The project usually goes awry when the homeowner applies the grout pen to the grout and some bleeds over onto the tile.

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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