A/T WANZER GRADING AND EXCAVATING has been serving Lake, Mendocino, and Sonoma counties for over twenty years. In those years we've served hundreds of customers with various projects and sizes. We've cleared, ripped, and prepared over 300 acres of vineyards, constructed ponds, cleared fire trails, and have graded over a 1000 miles of roads. For our residential customers we've cleared house pads, constructed driveways, installed septic systems, retaining walls, and building foundations. All of our equipment is fully maintained and our operators are experienced and take pride in their work.