Concrete Sealing in Pittsburgh, PA

Protect your concrete surfaces from the elements and extend their life with our professional sealing services. RMK Services provides high quality concrete sealing for driveways, patios, and walkways across Pittsburgh, PA.

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The Top Concrete Sealing in Pittsburgh, PA

Unsealed concrete is vulnerable to damage from water absorption, freeze thaw cycles, and de-icing salts, leading to ugly and expensive problems. RMK Services offers expert concrete sealing to protect your investment and keep it looking its best. As a family-owned business in Pittsburgh, we apply our core values of integrity and quality to every job. Our licensed and insured technicians use premium, long lasting sealers for maximum protection. We are dedicated to delivering a 5 star service that enhances your property’s curb appeal. Properly sealing your concrete prevents staining, stops weather damage, and makes cleaning much easier. It is the most effective preventative maintenance you can perform for your concrete. Trust our team to prepare your surface and apply a professional grade sealer correctly. We offer free in-person estimates for all sealing projects.

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John Daly
September 20, 2025

Side walk is fantastic! Ryan fixed my retaining wall no one else would touch. Very extra professional job. All his people were great also. Great estimate and greater work. I highly recommend him. He has been a blessing!

Clinton Eastwood
September 14, 2025

I love RMK Services LLC because they truly take pride in their concrete work and always go above and beyond to deliver quality results. Whether it’s driveways, sidewalks, patios, or foundations, they handle every project with skill, professionalism, and attention to detail. Their team doesn’t just get the job done – they make sure it’s done right, built to last, and looks great too. RMK Services LLC is reliable, hardworking, and committed to customer satisfaction, which is why I trust them with any concrete job I need.

Jason I
August 22, 2025

Ryan and his crew were absolutely amazing on every level including attention to detail and transparency with everything from a fair and honest quote to the level of craftsmanship performed. They worked at a fast and efficient pace while considering safety of the homeowner and his crew at all times. The difference is he listens to his customers and goes the extra mile to make them happy. I had my retaining wall reconstructed and I couldn't be happier. I highly recommend RMK services for all your project needs.

Chris T.
August 20, 2025

Excellent service from Ryan. He poured a sidewalk for us at our rental property and got it done on time and in budget. We'll be using his services again very soon.

Nathan B.
August 19, 2025

From the beginning Ryan was on it! When I first searched yelp for help with fixing my glass block windows, lentals, and repointing on my brick outside my house he was one of the first to contact me. He scheduled to meet with me fairly quickly, was on time and realistic with what work was needed to be done and offered it at a very reasonable price. He kept me informed the whole time on everything he was doing and ensured me the job would be done correctly. Would recommend.

RMK Services OFFERS Concrete Sealing IN Pittsburgh’s Top Neighborhoods

RMK Services provides professional Concrete Sealing for homeowners and businesses throughout the greater Pittsburgh area. Below is a full list of nearby neighborhoods and townships we serve, all within our 60-mile service radius. If your property is located in one of these areas, we’re ready to help you with Concrete Sealing:

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Our Concrete Sealing Service

Our concrete sealing process begins with a detailed surface evaluation and consultation. An expert from our team will visit your property to inspect the concrete you wish to have sealed. We assess its age, condition, porosity, and any existing damage or coatings. This allows us to determine the most appropriate type of sealer for your specific needs. We discuss the differences between penetrating sealers, which protect from within, and topical sealers, which form a protective film. Our recommendation will be based on the type of surface and your desired appearance. We provide a clear explanation of our process and a transparent, upfront estimate.

Thorough surface preparation is the most critical step for a durable and effective sealer application. The concrete must be absolutely clean for the sealer to bond properly. Our team uses professional grade pressure washers and specialized concrete cleaners to remove all accumulated dirt, grime, mildew, and efflorescence. This deep cleaning process opens up the pores of the concrete, allowing for better penetration and adhesion of the sealer. We take care to protect your surrounding landscape, siding, and other property features during the cleaning process. A pristinely clean surface is the foundation of a professional sealing job that will last for years.

For surfaces like driveways and garage floors, stain removal is a key part of our preparation. Oil, grease, rust, and leaf tannins can leave deep, unsightly stains that will be trapped under a new coat of sealer if not addressed. We use a variety of professional grade cleaning agents and poultices specifically designed to lift these tough stains out of the concrete. Our technicians have the expertise to identify the type of stain and apply the correct removal method. While some very old or deep stains may not be completely removable, our process significantly reduces their appearance. This step ensures a much cleaner and more uniform look after sealing.

Before applying any sealer, we address any minor cracks or surface damage. Sealing over existing cracks without repairing them first is a missed opportunity. While sealer can help prevent water from entering the pores of the concrete, it cannot bridge a significant crack. Water will still find its way into the unrepaired crack, leading to further damage during freeze thaw cycles. We meticulously clean out and repair minor cracks with a high quality, flexible sealant. Addressing these small issues beforehand ensures a more comprehensive level of protection and improves the overall appearance and longevity of the sealed surface.

The sealer application itself is performed with precision and professional equipment. Depending on the type of sealer and the size of the area, we use either a high volume, low pressure sprayer or specialized rollers. Our technicians are trained to apply the sealer in thin, even coats to avoid puddles, streaks, and roller marks. This ensures a beautiful, uniform finish across the entire surface. We apply the correct number of coats as specified by the manufacturer to achieve the desired level of protection and sheen. Our attention to detail during application is what sets a professional job apart from a typical DIY project.

We use a range of high performance sealers to meet the specific needs of each project. For driveways and sidewalks exposed to de-icing salts, we often recommend a penetrating silane or siloxane sealer. These products penetrate deep into the concrete to form a hydrophobic barrier that repels water and salts without changing the surface appearance. For decorative stamped concrete patios, a film forming acrylic sealer is a great choice as it enhances the colors and provides a protective sheen. For garage floors, we offer durable epoxy and polyaspartic coatings that resist hot tire pickup and chemical spills. We only use professional grade products from trusted manufacturers.

Once the final coat of sealer is applied, we provide you with clear instructions on curing times. It is crucial to allow the sealer to fully cure before subjecting it to traffic. We will advise you on when it is safe to walk on the surface and when you can drive on it. Our team ensures the work area is left clean and tidy. We also provide you with simple tips on how to care for your newly sealed concrete to maximize its lifespan. Our 5 star service commitment means we want you to be fully informed and completely satisfied with your protected, beautiful concrete.

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All Concrete Services By RMK in Pittsburgh, PA

RMK Services offers Concrete Sealing in Pittsburgh, but we also offer many other residential concrete services for homeowners across Pittsburgh. From new installations to full tear-outs and replacements, we handle everything with precision and care. Below is a complete list of concrete services available alongside Concrete Sealing:

Why Homeowners Trust RMK Services in Pittsburgh, PA

At RMK Services, we focus on delivering honest, high-quality concrete work backed by real experience and dependable service. From the first estimate to the final pour, our team shows up, communicates clearly, and gets the job done right without sales pressure or surprises. We take pride in treating every property like it’s our own and standing behind everything we do.

  • Licensed & Insured in Pennsylvania (PA License #203908)
  • Over 10 Years of Construction Experience
  • Free In-Person Estimates With Honest, Fair Pricing
  • No Upsells or Games; Just Solid, Reliable Work
  • Family-Owned and Operated in Pittsburgh
  • Serving a 60-Mile Radius Around the City
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Years in Business
5-Star Reviews
Satisfied Clients
Jobs Completed

A Homeowner’s Guide On Concrete Sealing in Pittsburgh

For Pittsburgh homeowners, sealing your exterior concrete is not a luxury; it is essential maintenance. Our harsh winters, with frequent freeze thaw cycles and the use of de-icing salts, are incredibly damaging to unsealed concrete. Sealing your driveway, sidewalk, and patio creates a protective barrier that stops water and salt from penetrating the surface. This single step is the best way to prevent the spalling, pitting, and cracking that is so common in our region. New concrete should be sealed after it has fully cured, typically about 30 days after being poured. Existing concrete can be sealed at any time, but it should be done proactively before you see signs of damage. A professional application ensures the surface is properly prepared and the right product is used for lasting protection.

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Common Concrete Sealing Questions

Applying a high quality sealer is one of the most effective and affordable ways to protect your concrete investment. It preserves the appearance and structural integrity of your driveways, patios, and walkways. Pittsburgh homeowners often have questions about the process, benefits, and timing of concrete sealing. Here are some of the most common questions answered.

The frequency for resealing concrete depends primarily on the type of sealer used and the exposure conditions of the surface. Topical, film forming sealers, such as acrylics that are common on stamped concrete patios, typically need to be reapplied more frequently. In a high traffic area with significant sun exposure, you may need to apply a fresh coat every two to three years. This maintenance coat keeps the surface protected and looking vibrant. Less frequent reapplication can lead to the sealer wearing away, leaving the concrete vulnerable to stains and weathering.

Penetrating sealers, such as silanes and siloxanes, offer longer lasting protection. These products work by chemically reacting within the pores of the concrete to form a water repellent barrier. Because they are not a surface coating, they do not wear away from traffic. A high quality penetrating sealer applied to a driveway or sidewalk can last anywhere from five to ten years or even longer. While they cost more upfront, their longevity often makes them a better long term value for protecting standard concrete surfaces from weather damage.

The amount of traffic and the severity of weather exposure are also major factors. A driveway that sees daily vehicle traffic and is frequently treated with de-icing salts in the winter will need to be sealed more often than a quiet backyard patio. The best way to know when to reseal is to perform a simple water test. Sprinkle some water on the concrete surface. If the water beads up like it would on a waxed car, the sealer is still working. If the water soaks in and darkens the concrete, it is time to reseal.

A penetrating sealer, as the name implies, works by soaking into the surface of the concrete and sealing its pores from within. The most common types are silanes, siloxanes, and siliconates. These products create a hydrophobic barrier that prevents water and other liquids from being absorbed into the concrete. However, they are breathable, allowing any moisture vapor trapped inside the concrete to escape. Penetrating sealers do not form a film on the surface, so they do not change the appearance or slip resistance of the concrete. They provide excellent protection against freeze thaw damage and de-icing salts, making them ideal for driveways and sidewalks.

A topical sealer, also known as a film forming sealer, works by creating a protective layer on top of the concrete surface. The most common types used in residential applications are acrylic sealers. These products are available in a range of sheen levels, from matte to high gloss. They are primarily used to protect against stains and to enhance the appearance of decorative concrete, such as stamped or colored patios. They bring out the depth of the color and provide a beautiful, finished look. Epoxies and urethanes are also topical sealers, but they are high performance coatings typically used for garage floors and industrial settings.

The choice between the two depends on your goals. If your primary goal is to protect your concrete from weather damage without changing its natural look, a penetrating sealer is the best choice. If you want to enhance the color of decorative concrete and provide good stain protection for a patio or pool deck, a topical acrylic sealer is the way to go. For the ultimate in durability and chemical resistance for a garage floor, an epoxy or polyaspartic coating is the professional solution. RMK Services can recommend the perfect sealer for each of your concrete surfaces.

Yes, you can and absolutely should seal old concrete. In fact, sealing older, existing concrete is a critical maintenance step to prevent further deterioration and extend its remaining life. An older concrete driveway or patio that has never been sealed is highly susceptible to damage from water absorption, freeze thaw cycles, and salt. Applying a high quality sealer can halt this damage in its tracks and protect the concrete for years to come. It is one of the best things you can do to preserve your existing concrete surfaces.

The process for sealing old concrete is largely the same as for new concrete, but the preparation step is even more critical. Older concrete has likely accumulated years of dirt, grime, mildew, and stains. It may also have efflorescence, which is a white, powdery residue. All of these contaminants must be completely removed before sealing. This almost always requires a thorough pressure washing with professional grade concrete cleaners. The surface must be perfectly clean to allow the new sealer to penetrate and bond correctly.

Any existing damage on the old concrete, such as cracks or spalling, should also be repaired before the sealer is applied. Sealing will not fix this damage, but repairing it first will create a more durable and aesthetically pleasing final result. Once the concrete is cleaned and repaired, the sealer can be applied. For older, more porous concrete, a penetrating sealer is often an excellent choice as it helps to strengthen the surface from within. Sealing old concrete can dramatically improve its appearance and, more importantly, protect it from the elements, saving you from costly replacement down the road.

Whether a sealer makes concrete slippery depends entirely on the type of sealer used and the texture of the concrete itself. Penetrating sealers, such as silanes and siloxanes, do not form a film on the surface. They work within the pores of the concrete. Because they do not alter the surface texture in any way, they will not make your concrete any more or less slippery than it already is. This is one of the reasons they are an excellent choice for driveways and walkways where traction is a primary concern.

Topical sealers, like acrylics and epoxies, do form a film on the surface and can reduce the slip resistance, especially when wet. A high gloss sealer applied to a very smooth, troweled concrete surface can become quite slippery. However, this issue is easily managed. The slip resistance of a sealed surface has more to do with the original texture of the concrete. A concrete surface with a broom finish or a stamped texture already has good traction built into it. Applying a standard topical sealer to these surfaces usually does not result in a dangerously slippery surface.

For extra safety, especially around pool decks or on smooth surfaces that will be sealed with a topical coating, a non slip additive can be used. This additive is a very fine, grit like material, often made from polymer or aluminum oxide, that is mixed into the final coat of sealer. It creates a slightly textured surface that provides excellent traction without significantly changing the appearance of the concrete. As professionals, we always consider the use of the surface and can recommend a sealer and additive combination that will provide a safe, slip resistant finish.

The best time of year to seal concrete in the Pittsburgh area is during the milder months, typically from late spring through early fall. The most important factors for proper sealer application are temperature and moisture. Most sealers have a specific temperature range in which they should be applied, usually between 50 and 90 degrees Fahrenheit. The temperature of the concrete surface itself is what matters most. Applying a sealer when it is too cold can prevent it from curing correctly, leading to a weak finish that fails prematurely.

Applying sealer when it is too hot can also cause problems. On a very hot, sunny day, the concrete surface can get extremely hot. If a solvent based sealer is applied to a hot surface, the solvent can evaporate too quickly, before the sealer has had a chance to properly penetrate and form a film. This can result in bubbling, blistering, or a hazy appearance. We carefully monitor both the ambient air temperature and the surface temperature to ensure we are applying the sealer under ideal conditions for the specific product we are using.

Moisture is the other critical factor. The concrete must be completely dry before a sealer can be applied. Sealing damp concrete can trap moisture underneath, which can lead to a cloudy or hazy appearance, especially with acrylic sealers. This is known as blushing. We always ensure there has been no rain for at least 24 hours before we begin a sealing project, and that no rain is in the forecast for at least 24 hours after application to allow for proper drying and curing. The dry, stable weather of late spring and early fall typically provides the best window for sealing concrete in our region.

Concrete sealing provides critical protection against the two biggest enemies of concrete in a Pittsburgh winter: the freeze thaw cycle and de-icing salts. Concrete is naturally porous, like a hard sponge. When it rains or snow melts, unsealed concrete absorbs water into its pores. In the winter, when the temperature drops below freezing, this trapped water turns to ice. As water freezes, it expands by about 9 percent with incredible force. This expansion puts immense pressure on the surrounding concrete, causing it to crack, chip, and spall from the inside out. This is known as freeze thaw damage.

A high quality concrete sealer, particularly a penetrating sealer, works by blocking the pores of the concrete. It creates a hydrophobic barrier that prevents water from being absorbed in the first place. If water cannot get into the concrete, it cannot freeze and expand, and the destructive freeze thaw cycle is stopped before it can even begin. This is the single most important function of a sealer in a cold climate. It is a proactive defense that preserves the structural integrity of your concrete through countless winters.

Sealers also provide protection against the corrosive effects of de-icing salts. While salt is great for melting ice, the chemicals it contains can be very damaging to concrete. They can accelerate the freeze thaw process and chemically attack the cement paste, leading to surface scaling and spalling. A good sealer creates a barrier that prevents these harsh chemicals from penetrating the concrete surface. By sealing your driveway, you can safely use de-icing products without having to worry about them destroying your concrete over time. This protection is essential for maintaining a healthy driveway in our snowy region.

While there are DIY concrete sealing products available at big box stores, professional sealing offers significant advantages and is generally a better investment. The most common point of failure in a DIY sealing project is improper surface preparation. Most homeowners do not have access to the professional grade pressure washers, degreasers, and grinding equipment needed to properly clean and profile the concrete surface. If the concrete is not perfectly clean, the sealer will not bond correctly and can peel, flake, or fail in a very short amount of time.

Professionals also have access to higher quality, commercial grade sealing products that are not available to consumers. These professional products are typically more durable, last longer, and offer better protection than their retail counterparts. A professional also has the expertise to choose the right type of sealer for your specific concrete and its intended use. Using the wrong sealer, for example, putting a slippery, non breathable sealer on a basement floor, can create serious problems. Professionals also have the proper safety equipment to handle the chemicals and solvents in some sealers.

The application process itself is also more difficult than it looks. It requires skill to apply a sealer evenly without leaving streaks, roller marks, or puddles. Applying the sealer too thickly can lead to a host of problems, including a hazy appearance and a weak, sticky surface. A professional team like RMK Services has the experience and equipment to prepare the surface correctly, choose the best product, and apply it flawlessly for a beautiful and long lasting finish. The quality and longevity of a professional job far outweigh the small savings of a DIY attempt.

The drying time for concrete sealer can vary depending on the type of sealer, the temperature, and the humidity. It is important to distinguish between drying time and curing time. “Dry to the touch” simply means the surface is no longer tacky. Most sealers are dry to the touch within a few hours. However, the sealer is not yet ready for traffic. It needs to go through an initial curing phase to harden enough to be walked on. For most sealers, the surface is ready for light foot traffic after about 4 to 6 hours.

The full curing time, which is the time it takes for the sealer to reach its maximum hardness and chemical resistance, is much longer. A topical acrylic sealer is typically ready for heavy foot traffic and the replacement of patio furniture after about 24 to 48 hours. However, you should wait longer before subjecting it to vehicle traffic. For a driveway that has been sealed, it is generally recommended to wait at least 48 to 72 hours before driving on it. Driving on the sealer too soon can cause tire marks that can be permanent.

Penetrating sealers often have a faster turnaround time since there is no surface film to cure. However, it is still a good idea to keep traffic off the surface for a day to ensure the chemical reaction is complete. Your professional installer from RMK Services will give you specific instructions for the product used on your project. We will clearly mark off the area and let you know the exact times for when it is safe for foot traffic and vehicle traffic. Following these guidelines is essential for the long term performance of the sealer.

Get The Best Concrete Sealing Near You

For a free in-person estimate on your project, book a call-back using our 24/7 self-service system or call us directly at (412) 902-5114.

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