Sealing is worth the cost because it prevents stains and keeps your concrete in good condition for longer. Considering that new concrete costs $125 per cubic yard on average—and concrete removal isn't cheap if you need to replace it—using a sealer helps protect your investment long-term. Sealing allows your concrete to better withstand the elements and heavy use, extending its lifespan and enhancing its appearance.
If you don't seal your concrete, the surface can become brittle and damage sooner. This damage is especially problematic in cold climates where frozen water can seep into the porous surface of unsealed concrete and expand, potentially causing cracks. Salt used for melting ice can also damage unsealed concrete more than it would sealed surfaces.
Concrete sealers last five to 10 years for epoxy and polyurethane products, while acrylic options last two to three. These sealers maintain their protective quality when applied under proper conditions. To ensure your surfaces remain well-protected, inspect them every two years, especially those prone to heavy use and environmental exposure.
Topical and penetrating sealers serve different functions for protecting your concrete. Topical sealers form a hard, visible film over the surface to block water, oil, and stains, while penetrating sealers bond chemically with the concrete to enhance durability from within without changing its natural look. The better choice between these two depends on the level of traffic, environmental exposure, and the finish you wish to achieve for your concrete.