Bob's Grading Inc. has been providing quality grading and landscaping services since 1990. We use only the finest quality products and purchase them from local suppliers. The company mission is to provide the highest quality service with the greatest value. The results you can see. Seeding/Sod: Bob's Grading uses 60-80 percent bluegrass for our premium lawns. A thick layer of topsoil is key to a healthy lawn. We tailor a unique seed and fertilizer blend to match the conditions of your soil and the time of year it is installed.