Get matched with top asphalt driveway pros in Cass Lake, MN

An asphalt driveway should be at least 3 inches thick over a compacted gravel base. Areas with poor drainage should have a thicker stone base. To install a new asphalt driveway over an existing driveway, the new asphalt should be at least 2 inches thick and the existing driveway should be in relatively good condition.

This creates a risk for your driveway to fail after asphalt curing because it doesn't have a lasting bond with the surface. In order to get asphalt to perform as intended, it's necessary to prepare the dirt surface correctly first. The loose soil base under the new driveway must be compacted until it is stable enough to support the weight of the asphalt.

There’s no single best asphalt grade—it all comes down to where and how it’s used. Highways and heavy-traffic roads need something tough, like polymer-modified asphalt (PMA) or Stone Matrix Asphalt (SMA). Local roads and parking lots rely on the Performance Graded (PG) system, chosen based on climate. A PG 64-28 mix, for example, handles a broad temperature range while simpler, more cost-effective mixes are typically enough for residential driveways. The best grade of asphalt depends on traffic, weather, and your budget, which is why a professional’s input is always a smart move before making a decision.

To ensure you hire a reliable and experienced paving company, you should start by finding companies in your area that have at least five to ten years of experience working in your neighborhood. Next, rule out companies with poor reviews online or a series of complaints filed with the Better Business Bureau. Since driveways affect your curb appeal, you should also ask each company for references and pictures of recent work to make sure the work the company does is professional and high quality. Finally, check that the company is licensed and insured.