How Much Does It Cost to Seal Concrete? [2026 Data]

In 2026, the national average cost to seal concrete is $1,500. Most homeowners spend between $1,350 and $3,500 on a concrete sealing project, with the cost driven by project size, sealer type, and location.

Concrete Sealing Cost by Square Foot: Does Size Matter?

Sealing concrete costs $0.10 to $0.75 per square foot for materials alone, rising to $1.35 to $2.50 per square foot once labor is included. The final price depends on the type of sealer, the dimensions of the area, and its location. 

For small projects, a professional may charge a flat minimum fee rather than a per-square-foot rate. 

The breakdown below shows how average costs vary with project size:

"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: What Affects the Price?

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

The types of concrete sealers you choose significantly affect material costs, which average $20 to $60 per gallon. Water-based acrylic sealers sit at the lower end of that range, while oil-based epoxy sealers cost more. Most sealers are versatile enough to work indoors and outdoors, on both vertical and flat surfaces, and one gallon typically covers 150 to 300 square feet. 

The following table shows how sealer type impacts average costs:

Labor Cost to Seal Concrete

When you hire a local driveway contractor, labor runs $1.25 to $1.75 per square foot, not including any additional repairs. The rate can rise depending on the sealer type, the physical location, and the size of the area being sealed. For small jobs, expect a higher effective per-square-foot cost if your contractor applies a minimum fee.

Location

Where your concrete is located determines which sealer type you need, with garages requiring an epoxy sealer for a waterproof finish, which costs $40 to $175 per gallon. What you can expect to pay depends on what garage floor coating contractors near you charge. 

The area being sealed also impacts how many coats are required, since indoor surfaces face different conditions than those exposed to outdoor elements. 

The following table details costs by location and sealer type:

Repairs and Cleaning

Minor repairs like normal concrete cracks cost only the price of a tube of filler, but concrete resurfacing costs an average of $60 per square foot for more significant damage. Once repairs are complete, make sure you know how to clean concrete thoroughly before applying any sealer.

Removing Existing Concrete Sealant

On average, sealant removal runs $1 to $3 per square foot. Removing existing sealant is a required step before applying a fresh coat, and the cost depends on the type of sealant previously used. 

Number of Coats

The number of coats your concrete needs depends on the type of concrete finish, the surface's location, and how much daily use it sees. Any application beyond the standard two coats will increase both material and labor costs.

Cost of Common Concrete Sealing Add-Ons

Sealing concrete protects the surface and improves its appearance, but a few common add-ons (ranging from $2 to $20 per square foot) can take the look even further:

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