Welcome to Expansion Joint Pros! Our primary goal is to replace your rotten/dead wood in your driveway with a polyurethane (2c SL SIKAFLEX below) in order to preserve your driveways integrity, while also making it look aesthetically appealing. We match to each individual driveway and also help cracks look better! While the cracks cannot be permanently fixed, we can at least fill it with a poly sand in order to slow the process of it getting worse.