Tri County Seal Coating is a residential and commercial paving contractor based in Centralia, IL, proudly serving all of Marion County and surrounding areas. With over 14 years of experience, we specialize in seal coating, asphalt repair, crack filling, driveway sealing, parking lot maintenance, and professional pavement striping. You Need A Seal We Got The Deal. Our team is committed to quality workmanship, reliable service, and clear communication from start to finish. Whether you need asphalt maintenance, driveway sealing, or parking lot striping, Tri County Seal Coating delivers long-lasting results and complete customer satisfaction on every project.