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How Much Does It Cost to Seal Grout?

Jenna Jonaitis
Written by Jenna Jonaitis
Updated October 25, 2021
Child putting on rain boots on tile floor
Catherine Falls Commercial / Moment via Getty Images

The typical cost to seal grout is between $60 to $250 for 160 square feet (the average kitchen size), including material and labor costs

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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. Sealing grout is an easy way to protect your beautiful subway tile backsplash or the luxurious marble countertop you splurged on during your last home reno. 

A grout repair specialist near you can tackle the job, or you can do the project yourself with the right tools and supplies. Sealing your tile should be done about every three years to keep your grout free from mold, deterioration, and dirt buildup.

How Much Does It Cost to Seal Grout per Square Foot?

It costs between $0.90 and $1.60 per square foot to seal grout, based on the size of your tiles, where you live, and the condition of your grout. Grout sealing usually includes cleaning, but always ask your contractor before you agree to a price.

How Much Grout Can I Get Sealed on My Budget?

Depending on your budget and the current state of your grout, you may be able to clean and seal the grout in all your bathrooms and kitchen or tackle the space that needs it the most. Here are some estimates of what you can do with your budget:

$100

Get your tile grout cleaned and sealed in a small to medium-sized bathroom, such as a space smaller than 75 square feet. Even if your rooms are tiny, contractors usually won’t venture out to complete a job for under $100.

$200

This budget covers approximately 160 square feet of tile, depending on your tile size and your location. You could have the grout lines in two bathrooms cleaned and sealed—or your kitchen floors.

$300

Have 250 square feet of tile grout cleaned and sealed, which likely will cover a few rooms, such as your kitchen and a large bathroom.

$400

Depending on the size of the tile and each room, you could clean and seal your kitchen plus a couple of bathrooms with this budget.

$500

This budget is great for those with an all-tile bathroom. It's also likely to cover sealing grout in your kitchen and another bathroom too, depending on the size of the space and the labor costs in your area.

How Much Does It Cost to Seal Grout Yourself?

Grey and white diamond pattern kitchen tile backsplash
Cavan Images / Cavan via Getty Images

It costs about $60 to $110 for the materials needed to clean and seal grout yourself in a 160-square-foot space. You’ll need to purchase grout cleaner, grout sealer, applicators, a sponge, bristle brush, bucket, and wiping rags. If your tile floors or walls are particularly dirty, you may need to buy or rent a steam cleaner.

The project usually takes three hours for 160 square feet for someone experienced. Depending on your skill level and the size of your tiles, it could take longer. 

If your tile grout is extra dirty, the cleaning process could be extensive. In this case, it’s often best to hire a professional grout cleaner near you. They’ll likely use a low-pressure steamer to rid your floors of deep-seated dirt and stains.

Grout Sealing Cost Breakdown

The majority of the cost to seal grout is the labor, but you’ll also need some supplies to complete the job. A contractor usually includes materials in their costs, but be sure to double-check before agreeing to a project price.

Below is an estimated cost breakdown for tile grout cleaning and sealing in a 160-square-foot room, such as your kitchen tile floor. If you plan to complete this project yourself, simply subtract the cost of labor.

  • Grout cleaner: Grout cleaner can cost anywhere from $11 to $22 for a 32-ounce bottle.

  • Grout sealer: Two main types of grout sealer are on the market: wipe-on sealers and spray-on sealers. Spray-on usually costs between $6 and $10 for a 6- to 15-ounce bottle, while wipe-on costs approximately $15 for 15 ounces. You can also purchase applicator bottles for this type of grout sealer for about $5.

  • Wiping Rags: Fabric rags usually cost $5 to $20, depending on how many you purchase in a package. You’ll probably need a few to complete the project.

  • Sponge: A sponge can help clean the grout and ensure that the area is ready for sealant. Sponges cost $1 to $5.

  • Bucket: A cleaning bucket will cost anywhere from $4 to $15 and make the cleaning process smoother.

  • Bristle Brush: A bristle brush can help get deep into the grout and remove all the grime, oil, and dirt buildup. These usually cost $5 to $10.

  • Steam Cleaner: For particularly dirty or stained grout, a steam cleaner is the best tool for tackling dirt and debris before sealing. Steam cleaners typically cost between $130 and $180, or $30 to $40 to rent for the day.

  • Labor: Labor can cost anywhere from $115 to $500, largely dependent on your geographic region. Spots like New York City and Los Angeles cost more than smaller cities in the Midwest. The job usually takes three hours for 160 square feet.

What Factors Influence the Cost to Seal Grout?

A few key factors play into the cost of sealing grout, primarily the size of your tiles, how dirty the grout is, and the square footage of the space.

Size of Tiles

The smaller the tiles, the more grout lines, which means more product and more labor. A room full of 2-by-2-inch ceramic tiles will cost much more than a room with 24-inch-by-48-inch tiles.

Amount of Dirt and Staining

The amount of grime, debris, staining, mold, and oil buildup dictates how long it will take to clean the grout before you can seal it—increasing labor costs. If you need to buy or rent a steam cleaner due to excessive dirt, the cost will go up if you’re doing it yourself.

Keep your grout clean regularly to make the job easier and quicker when you need to seal it. You can also ask your contractor how regrouting works if you feel your floors, wall, or countertop might need further repair.

Square Footage

A larger space requires more product, but more importantly, more labor.

Labor Costs in Your Area

The cost of labor in your geographical region impacts the total cost of the project.

FAQs About Sealing Grout

What other projects should I do at the same time?

Some homeowners find it best to clean their tiles while also cleaning and sealing their grout. Adding in tile cleaning helps the whole surface last longer and look cleaner for longer, too. The cost to clean tiles and grout is $460 on average, with most homeowners spending between $281 and $649. Per square foot, the price usually ranges from $0.50 to $3.

Check with your contractor to see if they clean grout and tiles as well as grout sealing. They might even offer a discount for bundling the work.

How often should I seal grout?

Sealing your tile should be done every three years to keep your grout free from mold, deterioration, and dirt buildup.

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