My neighbor took down trees, one of which was mulberry tree whose welcome demise removed the roots that ran under my driveway to the garage. Driveway messed up. Having used Unilock pavers before, I tried the referral service from Unilock and got three estimates. Alpine was the most professional in the bidding (and they underbid the first guys). The warranty was twenty years. They explained what and why they were going to do. Their treatment of the joint between the driveway and garage was excellent (French drain). Their gridmaster (the guy who decides how the pattern will be implemented) nailed it. The driveway drains in the winter, no puddles. and diverts the water as it should in the rain. One of the most professional crews I have ever dealt with. Enjoy.