Can you permanently seal grout?

Author: Kris Emmerich  |  Last update: Friday, September 19, 2025

WAXIE Grout Guard is a tough, permanent, high solid, water-borne sealer that penetrates deep into grout and repels soil and germs while improving slip resistance. This protection will dramatically reduce maintenance costs, due to the ease of cleaning.

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.

Can you seal grout years later?

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. That will make the grout water-resistant, if not waterproof, and help prevent the growth of mold and dirt.

How do you fix grout without replacing it?

If your grout is cracked or missing in spots, you'll need to do some prep work before you fix the grout between tiles. To repair cracks, use a caulking gun and silicone caulk designed for wet areas. Fill cracks flush with the tile surface or slightly below.

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 To Seal Grout - DIY for Beginners

Is it OK to put new grout over old grout?

You can apply new grout right over the top of the old grout. To do this, all you need is a grout removal tool. Use the tool to strike out the old grout, making sure the depth is at least 2mm, which is about the thickness of two dimes stacked one on top of the other.

Is it cheaper to regrout or replace tile?

Regrouting is typically a more affordable option, especially for larger areas. It can also be a quicker process compared to tile replacement, minimizing disruption to your home. Tile replacement, on the other hand, is a more extensive and costly project.

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.

What is the lifespan of grout?

There are a number of factors that can cause cracks and issues in the grout. But if cared for properly, grout can last for up to twenty years.

What happens if grout sealer dries on tile?

It is important not to leave any excess sealer on the tile surface because it won't get absorbed and it can leave a sticky surface that can become a maintenance problem.

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.

Is it really necessary to seal grout?

Porous grouts attract water, dirt, oils, etc. 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.

Does sealing grout keep it from crumbling?

The best line of defense and protection for your grout is to have it sealed. Sealed grout will not only get the protection it needs against crumbling, but it will also be protected against heavy staining as well. Your tile and grout need to be professionally cleaned before getting sealed for best results.

What is the best grout sealer?

  • Aqua Mix – Sealer's Choice Gold. Aqua Mix has been producing quality tiling solutions and problem solvers for over 30 years and I have been using their product for nearly as long. ...
  • Miracle Sealants – Porous Plus Sealer. ...
  • Black Diamond Coatings – Aqua-X Grout Sealer. ...
  • Tuff Duck Granite Grout Sealer.

How often should grout be replaced?

The best time to regrout shower and bathroom tiles is when you see mold, grout color changes, or the grout is old, about 15-20 years. Showers need more frequent regrouting because they're wet. Seeing mold or mildew between tiles means it's time for new 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.

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 you have to dig out old grout before regrouting?

Before you decide to regrout, evaluate the state of the existing grout. If it's severely damaged, crumbling, or has mold, it may be necessary to remove it entirely.

What is rejuvenation grout?

Davco Rejuvenation Grout is a premixed, ready to use grout designed to be applied straight over existing grout. Suitable for joints 1-5mm wide and a maximum 5mm depth. Davco Rejuvenation Grout is fast and easy to use an is stain, mould and bacteria resistant.

What is the most waterproof grout?

Epoxy grout: Waterproof, durable, stain- and shrink-resistant. The best grout in shower walls, backsplashes and other surfaces susceptible to moisture or stains. Ideal for use with unglazed and other tiles.

Will grout sealer stop leaks?

How to Stop Grout Leakages. To maintain the integrity of grout, you will have to apply a grout sealer. It is necessary to apply the sealer after 1 to 2 years so that the grout remains intact and waterproof.

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