How Much Does It Cost to Seal Concrete? [2025 Data]

It costs $1,500 on average to seal a 1,000-square-foot-area of concrete, or about $1.50 per square foot. Depending on location, material, and size, most homeowners spend between $1,350 and $3,500 on a concrete sealing project.

Concrete is one of the most durable materials on your property. Regardless of whether it’s in the basement or the driveway, adding a layer of sealer to your concrete can help preserve its look and also make it more resistant to the elements.

Cost to Seal Concrete per Square Foot

The cost of sealing concrete ranges from $0.10 to $0.75 per square foot for materials alone. With the cost of labor added, it’s $1.35 to $2.50 per square foot on average. 

The final price depends on the type of material, dimensions, and location that needs sealing, plus the labor. Take note that if you have a small area that needs sealing, a professional concrete sealer may charge you a flat fee regardless of the square footage of the job.

“When sealing concrete that is at least a year old, the cost of cleaning and properly preparing the surface must also be considered,” says Expert Review Board member Matt DiBara of DiBara Masonry. “This process can include work such as removing all adjacent furniture, power washing the area, a light acid wash and neutralizing, and installing tape and plastic to protect windows and doors.”

Although this process varies based on how much cleaning and preparation is needed, DiBara says it often costs between $1 and $1.75 per square foot for older concrete areas that can benefit from the look and feel of a fresh coat of sealer.

Concrete Sealing Cost Factors

Other than the size of the area you’re sealing, there are a few important factors to consider that impact the cost of sealing concrete. Keep in mind that concrete repairs that need to be done before sealing the surface will increase the project's total price.

Sealing Type

There are different types of concrete sealers, and some tend to be more affordable than others, since some are water-based while others are oil-based. For instance, acrylic sealers are often less expensive than epoxy-based sealers. On average, expect to pay around $20 to $60 per gallon. 

When choosing your concrete sealing, most sealer options are versatile and can work indoors and outdoors, both vertically and on flat surfaces. One gallon of sealer covers roughly 150 to 300 square feet.

Labor Cost to Seal Concrete

If you decide to hire a local driveway contractor, expect to pay around $1.25 to $1.75 per square foot, plus any additional repairs needed. The cost may increase based on the type of sealer you choose, the physical location, and the dimensions of your driveway, basement, or concrete floor––wherever it is that you are sealing. If the area is small, expect the cost per square foot to be higher if your contractor charges a minimum fee.

Location

The location of your concrete floor has a large impact on the type of sealant and number of coats you'll need. Indoor sealers will differ from surfaces up against outdoor elements. The prep and potential damages will also depend on the concrete's purpose.

Garages, for example, need an epoxy sealer to provide a waterproof finish, which costs $40 to $175 per gallon, depending on what garage floor coating contractors near you charge. 

Here’s a breakdown of what kind of sealer is best for the location of your concrete and how much it costs.

Repairs and Cleaning

While small DIY fixes, such as normal concrete cracks, will only cost the price of the tube of filler to fix, concrete resurfacing costs an average of $60 per square foot. Once your concrete is in tip-top shape, be sure you know how to clean concrete before adding the sealer.

Removing Existing Concrete Sealant

Before you freshly seal concrete, you must remove any existing sealant. The cost to remove existing sealant depends on the type of sealant that was previously used. On average, it costs between $1 and $3 per square foot to remove sealant.

Number of Coats

The number of coats necessary will depend on the type of concrete finish, where the concrete is located, and its daily use. Anything beyond the standard two coats of sealer will add to the base price for both materials and labor.

Cost of Common Concrete Sealing Add-Ons

Sealing concrete protects it and adds a pristine aesthetic. However, a few other common add-ons can improve the look of sealed concrete.

• Stain: Staining concrete can add a pop of color and gloss to concrete floors. On average, stained concrete floors cost between $2 and $6 per square foot.

• Polish: Adding polish to finish concrete floors gives the concrete a high gloss look. On average, polished concrete floors cost between $3 and $8 per square foot.

• Stencils: Stenciling concrete floors can help you add unique patterns and colors to your concrete floor. You can get both stock and custom-designed stencils, and depending on the intricacy, stenciling concrete floors costs between $9 and $20 per square foot.

How to Save Money on Concrete Sealing Costs

One of the best parts of sealing your concrete is that the process itself will lower the costs of cracks and other repairs over time. Lower the price of concrete sealing itself by doing the following:

• DIY the Prep Work: Clear out the area, remove stains, and address DIY-able concrete repairs yourself before hiring a pro.

• Choose the Right Sealer: Different sealers are made for different types of surfaces and uses. Looking for one that suits your specific surface helps you avoid having to re-apply sealer for a while.

• Allow Proper Drying Time: Follow the manufacturer’s guidelines for drying time between coats to get the most durable finish.

• Buy in Bulk: Seal several areas of concrete at the same time to buy the materials in bulk and lower overhead costs.

• Use the Right Tools: Investing in or renting high-quality tools, like a good sprayer, can make the application process more efficient and reduce waste.

Why You Should Hire a Concrete Sealing Pro

Concrete sealers cost between $0.10 and $0.75 per square foot. But while sealing the concrete yourself is the most affordable option, it’s quite time-consuming and involves a lot of prep work. 

If you don’t want to go through the hassle of the concrete sealing process, contact a local concrete company fr between $1.25 and $1.75 per square foot. This is especially important if you live in a humid area or one that gets frequent rain, because the moisture can cause the concrete not to be properly sealed.

Here’s why it’s ideal to hire a concrete sealing pro

Sealing concrete is more complex than it may seem. Here’s why it’s best to hire a pro for the job:

• Professionals know how to choose the right sealer for your concrete.

• Experienced pros have the equipment needed to seal concrete evenly and safely.

• DIY sealing can lead to uneven coverage, peeling, and costly damage.

• Professionals know how to handle chemicals and equipment safely.

• Properly sealed concrete lasts longer, resists stains, and can add value to your home.

If you want to DIY concrete sealing

If you want to assist with the sealing process, focus on smaller tasks like:

• Removing furniture, decor, and plants from the work area

• Sweep, hose, or wipe down the concrete before your pro arrives

• Lay down protective coverings on landscaping or nearby surfaces

• Collect and dispose of debris and packaging once the job is complete

How Angi Gets Its Cost Data

Home is the most important place on earth, which is why Angi has helped more than 150 million homeowners transform their houses into homes they adore. To help homeowners with their next project, Angi provides readers with the most accurate cost data and upholds strict editorial standards. We extensively research project costs to develop the pricing data you see, so you can make the best decisions for you and your home. We rely on reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects. 

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