Why the base matters in Cool Valley
North County is rolling upland with the clay-heavy soils common around St. Louis. Clay takes on water, swells, then shrinks as it dries, and pavement over that movement cracks. Freeze-thaw winters widen those cracks into potholes. We fix the drainage and compact the base properly before any asphalt goes down.
A cheap bid usually gets cheap somewhere you cannot see. Ask what depth of stone goes down, how thick the asphalt is after rolling, and who fixes it if water still stands.
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 Cool Valley estimate is sized to the soil, the traffic and the drainage on your property.