Why the base matters in Harvel
Winters here bring repeated freeze and thaw, and the slow-draining soils common in central Illinois farm country hold water under pavement. That trapped water is what heaves and cracks asphalt. We dig to firm ground, compact the base in lifts and set grades so rain runs off the surface and away from its edges.
Bids are only comparable when they spell out the same things: base depth, compacted thickness, how edges are finished, and where water is meant to go. Ask for those before you pick a number.
Compacted asphaltTypically 2 to 3 in. for a car drive
Stone baseTypically 4 to 8 in., compacted
Drive on itUsually 2 to 3 days, longer in heat
First sealcoatTypically 6 to 12 months after paving
Typical ranges. Your Harvel estimate is sized to the soil, the traffic and the drainage on your property.