Thanks to great clients, and dedicated, hard-working personnel James McMinn Inc. is among the best grading contractors in Southern California. JMI uses the latest GPS technology, heavy machinery and dedicated labor to perform top-quality mass-grading, finish-grading, and general earthwork for sites of all types and sizes --whether silt, sand, clay, gravel, or rock there is no job too tough for our equipment and no task to imposing for our employees. 
​We take great pride in providing our clients with the best earthwork, demolition, and civil engineering solutions and have being doing our very best for Over 50 Years!