Is steam cleaning bad for grout?

Author: Ms. Velma Hegmann  |  Last update: Thursday, February 12, 2026

Sealed grout can stand up to the high temps and moisture, whereas unsealed grout isn't as durable. “Steam cleaning can damage grout, but mainly if the grout is unsealed or if you are using high-pressure steam,” explains Sarah McAllister, a cleaning expert and the founder and CEO of GoCleanCo and House Work.

Do you have to reseal grout after steam cleaning?

If your grout has been previously sealed, reapplication may not be required. If your grout wasn't sealed, the Pros recommend sealing it after steam cleaning. Make sure to allow the grout to fully dry beforehand.

How often should you steam clean grout?

To maintain tip-top grout, you should embark on regular cleaning — about once a week for simple upkeep and once every year or two for professional deep cleanings. Daily routines, such as using a squeegee after showers or spraying mild cleaners, help deter stubborn stains.

How do you clean grout without damaging it?

Use a commercial grout cleaner or a homemade solution of equal parts white vinegar and water in a spray bottle. Spray the grout lines generously with the cleaner. Scrub with a Brush: Scrub the grout lines with an old toothbrush or a grout brush. Use a back-and-forth motion to loosen dirt and stains.

Where should you not use a steam cleaner?

Certain softer surfaces, such as synthetic fabrics, velvet or other delicate surfaces are also not recommended for steam cleaning. Other surfaces such as laminate floor and some plastics could potentially be damaged by the high temperature of steam.

Does Steam Cleaning Damage Grout? - Is it OK to steam clean grout?

What is the disadvantage of steam cleaning?

Long drying times for carpet

In Steam Cleaning Equipment, using steam for carpets, you may have to wait up to 24 hours for the carpet to be completely dry and able to be walked on again. This could be inconvenient for some, especially if the carpet is in a workplace or commercial area.

Where does the dirt go when you steam clean?

So, where does the dirt go when you steam clean? Actually, it doesn't go anywhere. Instead, the heat and vapour of steam cleaning ensure that all the unwanted substances or stains are fully broken down and easy to get rid of.

What do professionals clean grout with?

Professionals often use steam to loosen the dirt and other particles trapped in the grout without needing to scrub manually. While every steam cleaning machine is different, you'll follow this basic process to clean grout lines: Use a steam cleaner with a small nylon brush attachment.

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.

Does anything really clean grout?

Here's a few DIY grout cleaners you can try: Make a spreadable paste with 3/4 cup baking soda with 1/4 cup hydrogen peroxide and 1 tablespoon of mild dish soap. Add more baking soda or peroxide if the mixture is too runny or thick.

Do steam cleaners really work on grout?

The good news is that steam is effective at both lifting grime and disinfecting grout. You'll need a clear space to work. Remove all furniture and sweep or vacuum well if you're cleaning the floor. Remove all shampoo bottles and hygiene tools if you're cleaning the shower.

What damages tile grout?

In some cases, it's not poor cleaning methods that damage tile grout. Instead, the culprits are improper installation, incorrect grout mix, or excessive moisture.

How long does it take grout to dry after steam cleaning?

On average, tile and grout surfaces take around 30 minutes to 24 hours to dry completely after a professional cleaning.

Why do builders not 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.

How often should I steam clean grout?

Generally, most households should deep-clean their grout tiles once per year.

How much does it cost to steam clean tile and grout?

It costs between $0.50 to $3 per square foot to have your tile and grout cleaned, with a $100 to $200 minimum. These costs typically include labor and material costs, so no need to worry about paying extra.

Is Dawn dish soap good for cleaning grout?

If you're a die-hard DIYer, using Dawn dish soap alone can be a safer option for mild cleaning. Dilute a small amount of Dawn in warm water, scrub the grout with a soft brush, and rinse thoroughly.

Is hydrogen peroxide bad for grout?

Yes, hydrogen peroxide is a natural neutral cleaner that is safe to use on grout. Hydrogen peroxide and baking soda produce oxygenated bleach, which is highly effective for cleaning grout.

How to clean grout without damaging it?

White vinegar is a versatile cleaner that can effectively maintain clean grout without damaging it. Mix a solution of one part white vinegar and one part warm water in a spray bottle.

Is goo gone safe on grout?

It works on the tile and the grout, effectively cleaning everything from hard water stains to mold and mildew stains to soap scum.

How often should I seal grout?

High-traffic floor grout: Should be sealed every six months to one year. Guest bath and shower grout: Should be sealed every year or two, depending on frequency of use. Backsplash grout: Backsplashes in high-traffic areas should be sealed once yearly on average.

Do you need to wipe after steam cleaning?

After steam cleaning, the surface can be rubbed dry using a cloth. Note for silicone grouting: apply steam only briefly to avoid damaging the material.

Do steam cleaners actually disinfect?

They not only force pathogens like E. Coli and Salmonella to the surface of the item being cleaned, but they actually kill them without the use of harmful chemicals. Keep in mind that regular steam cleaners deodorize and sanitize, but vapor steam cleaners are the most powerful.

Can you steam clean with just water?

Steam cleaning is a low-moisture method of cleaning that is 100% chemical-free. You can clean and sanitize virtually any surface in your home, using only tap water.

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