A seal coat is the cheapest way to protect asphalt from Montana's brutal freeze-thaw cycle and winter de-icing chemicals. Here is what driveway sealcoating costs in the Great Falls area, how often to do it, the process, and what to ask before you hire.
Asphalt sealcoating in the Great Falls area typically runs about $0.15 to $0.25 per square foot, so most residential driveways land between roughly $100 and $300. What moves the number:
Sealcoating is priced by the square foot, so an accurate measurement gives an accurate quote. Request a quote and tell us whether it is a driveway or a commercial lot.
In the Great Falls climate, plan on sealcoating about every 2 to 3 years. The high-plains freeze-thaw cycle forces water into the surface where it freezes and expands, and the salt and magnesium chloride spread on roads all winter chew through the asphalt binder. A seal coat replaces that protective top layer, blocks water and UV, and delays the day you need to resurface. Fresh asphalt should cure for its first season, then get on the 2-to-3-year cycle.
A proper seal coat is more than spraying: the surface is cleaned of dirt and debris, oil spots are primed, and cracks are filled and sealed so they do not telegraph back through. Then commercial-grade sealer is applied by squeegee or spray, edges are cut in by hand, and the driveway is kept off for the cure window. Ask any contractor whether the quote includes cleaning, crack filling, and oil-spot priming, and how long you should stay off the surface. For a parking lot, ask about restriping after the coat cures.
About $0.15 to $0.25 per square foot; most driveways run $100 to $300 depending on size, condition, and prep.
Every 2 to 3 years in the Great Falls climate. Freeze-thaw and winter de-icing chemicals break asphalt down fast.
Late spring through early fall, with daytime temps above about 50 degrees and no rain or freeze for 24 to 48 hours so it can cure.
Yes — commercial lots are a core part of our work, scheduled around business hours. See Parking Lot Striping.
Visit the full FAQ page for more.
Seal cracks before they spread — always done before sealcoating.
Restripe after a commercial lot is sealed.
When pavement is past sealing, resurface or repave.
You can also review driveway repair, pothole repair, and the areas we serve.