Sealcoating is the single cheapest thing you can do to protect asphalt in North Dakota's freeze-thaw climate. Here is what sealcoating costs in the Bismarck area, how often you should do it, the process, and how driveways differ from commercial parking lots.
Asphalt sealcoating in the Bismarck area typically runs about $0.15 to $0.25 per square foot, so most residential driveways land between roughly $100 and $300. Commercial parking lots are priced per square foot and drop toward the lower end as size increases. What moves the number:
Sealcoating is not a repair — it protects sound asphalt. If the surface is failing, it may need patching or resurfacing first. Request a quote and tell us whether it is a driveway or a commercial lot.
Bismarck pavement takes a beating. Each winter, water works into the surface, freezes, expands, and thaws — over and over. That freeze-thaw cycle is what turns a fresh driveway gray and brittle and opens the cracks that become potholes. A fresh coat of sealer every 2 to 3 years seals the surface against water and UV, restores the deep black finish, and can double the life of the asphalt underneath. Fill any cracks first so the sealer is not just bridging a gap.
A quality sealcoat starts with prep: the surface is cleaned of dirt, debris, and oil, weeds are removed from cracks, and cracks are filled. Then commercial-grade sealer is applied by squeegee or spray, edges are cut in by hand, and the lot is closed to traffic while it cures — usually 24 to 48 hours. For commercial lots, striping is repainted after the sealer dries. Timing matters: sealer needs dry pavement above about 50 degrees, so the Bismarck season runs late spring through early fall.
About $0.15 to $0.25 per square foot; most driveways run $100 to $300 depending on size, condition, and crack filling.
Every 2 to 3 years in North Dakota's freeze-thaw climate to keep water out and protect the asphalt.
Usually 24 to 48 hours to cure, depending on temperature and humidity. We will tell you when the surface is ready.
Not right away — new asphalt should cure for several months, often into the next season, before its first sealcoat.
Visit the full FAQ page for more.
Fill cracks before sealcoating for a lasting result.
Restripe commercial lots after sealer dries.
Patch failing sections before sealing.
You can also review paving & resurfacing, pothole repair, and the areas we serve.