Does shower grout need to be sealed?

Author: Wilber Reichert  |  Last update: Thursday, July 31, 2025

While the tile industry does not require sealing, it is always recommended, especially in wet or high-traffic areas. Penetrating sealers are the most commonly used and offer high water, chemical and stain resistance. They provide protection without changing the appearance of the grout joint.

What happens if shower grout is not sealed?

If grout is not sealed, it can absorb water and become a breeding ground for bacteria. It can become unsightly and ruin the entire design of your space and be hazardous to your health. If you have young children or tiles in an area where you eat, you need to ensure that they are as clean as possible.

Is it worth sealing grout in a shower?

Grout is porous and will absorb liquids that are spilled on it. It is always recommended to seal grout because sealed grout keep clean bathroom, kitchen. Even sealed grout prevent it from moulds. When professional sealed the grout it makes the tile and grout waterproof.

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 do you seal new shower grout?

First off deep clean the grout. Then have it be 100% dry, takes a day or two to be sure. Then use either miracle 511 or use Aqua Mix Sealer's Choice Gold. Don't cheap out, it won't work. Apply with a brush, wait until it soaks in then apply another coat. Let it cure. Reapply annually on a used shower floor.

How To Seal Grout - DIY for Beginners

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.

Is it too late to seal shower grout?

It's never too late to seal the grout in a shower stall. A:You can seal the grout the day after you applied it or 100 years later. If it isn't dirty, seal all three sides of the shower with a tile sealer or masonry sealer.

What is the best grout that does not need to be sealed?

Epoxy grout doesn't need to be sealed at all.

Is shower grout hard to keep clean?

MAINTAINING YOUR TILE'S GROUT

Most grout is made of sand and is porous, therefore things like dirt, debris, soap scum, and water get ground into the grout. All this can lead to the growth of bacteria, mold, and mildew, which is why your grout looks stained. Even if you seal your grout, that can wear down over time.

Can you leave grout unsealed?

Grout tends to wear away more quickly when it is not sealed, so it will crack, discolor and become hard to manage when cleaning. This will force you to replace it more often than if it was sealed, leading to higher costs overall.

What is the lifespan of grout in a shower?

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.

Is it better to spray or brush grout sealer?

It is generally better to use brushed grout sealer than spray sealer as you can apply more sealer with more control.

How much does it cost to seal grout?

The price depends on the tile material and size, the condition of the grout, and whether you hire a professional or DIY. The average cost to seal grout is $150 to $250 for 160 square feet of space, including materials and labor, though the price depends on the size of your tiles and the condition of your grout.

Will grout crack if not sealed?

Moisture can penetrate the grout, causing it to expand and contract, leading to cracks and gaps between tiles. These openings not only look unsightly but can also allow further moisture intrusion, potentially leading to structural damage to the underlying substrate.

Does shower grout need to be waterproofed?

Before you tile a shower, you need to waterproof it to prevent mold, pests, and damage to the tiles. Even non-porous tile and grout types require some extra steps, like laying a waterproof base and finishing the tile with sealant, to keep moisture at bay.

What do professionals use to clean shower grout?

Some professionals swear by a simple mixture of baking soda and peroxide to clean grout. Hydrogen peroxide is an acid, and baking soda is a base compound. Mixing the two together creates a reaction that can penetrate the grout lines and free dirt and debris.

How often should you grout your shower?

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.

Does water get behind grout in shower?

It is not unusual for water to penetrate into the grout joints, but perhaps there are excessive voids behind the tiles. Industry standards say you can't have more than 5% voids behind a tile that 5% should be dispersed.

What grout sealer is best for showers?

To seal to perfection, we recommend using Universeal Grout and Tile Protector. This product is a solvent based sealer designed to deeply penetrate your grout. It is effective in preventing stains from oil and water-based liquids and it will not discolour your tiles.

What kind of grout is best for showers?

Waterproof epoxy grout is ideal for showers and bathrooms because of its bonding power. Epoxy grout won't crack, stain, or shrink, making it an ideal solution for wet environments.

What grout doesn t need sealing?

SINGLE COMPONENT GROUT

Technically, it is a urethane or an acrylic-silicone resin grout. It shares many of the benefits of epoxy grout: it has excellent color consistency, doesn't need to be sealed, resistant to breakage and chemicals, resists mold and mildew, is stain resistant, and doesn't effloresce.

How long does shower grouting last?

Regrouting should be done every 3-5 years, depending on factors such as wear, moisture exposure, and the condition of the grout; however, if you notice cracking, discoloration, or mold growth, it's best to regrout sooner to maintain both the aesthetics and functionality of your shower.

How long after sealing a shower can I use it?

Although silicone or caulk sealants get touch dry within an hour and won't attract dust or debris, it is advisable that you wait longer before exposing them to water. When applying silicone sealant on a shower, it's recommended to wait at least six hours, but waiting for a full cure is best, which takes about 24 hours.

Previous article
What is the healthiest LED color?
Next article
Can leaving the oven on cause a fire?