Sealcoating is one of the most affordable ways to protect a concrete or asphalt driveway — but it's also one of the most skipped, usually because homeowners aren't sure what it actually does. Here's a straight answer.
What sealing actually protects against
- Freeze-thaw damage. St. Louis winters push water into tiny surface cracks, where it freezes, expands, and widens them. A sealant keeps water from getting in to begin with.
- UV damage. Sun exposure dries out and breaks down asphalt over time, and can fade or dull concrete. Sealant blocks UV rays from doing that work.
- Oil and chemical stains. A sealed surface is far easier to clean — oil, gas, and de-icing salt sit on top instead of soaking in.
- Everyday wear. Sealcoating adds a sacrificial layer that takes the wear from traffic, weather, and chemicals instead of the driveway itself.
How often should you reseal?
For asphalt, every 2–3 years is typical. Concrete sealants generally last longer — often 3–5 years — depending on the product and how much sun and traffic the surface gets. If you're noticing water no longer beads on the surface, that's usually the sign it's time to reseal.
Is it worth the cost?
Compared to the cost of a full driveway replacement — thousands of dollars — sealcoating is inexpensive and pays for itself many times over by extending the life of the surface. It's one of the few home maintenance items where the math clearly favors doing it on schedule rather than waiting until there's a problem.
What we do
We start with a power or soft wash to fully clean the surface (sealant won't bond properly over dirt or oil), fill any existing cracks, then apply a professional-grade sealant suited to your driveway's material. The result is a surface that looks freshly finished and is properly protected for the seasons ahead.
If you're in the St. Louis metro area and want a quote on driveway sealing, reach out here.