The Patterson Company has been a leader in masonry construction in Southern California for more than 30 years. As a mason contractor, we specialize in brick, concrete block and stone construction. Public works, commercial and industrial projects are a specialty.  We are a “green compliant company? We support the masonry industry by belonging to many industry organizations. The Patterson Company belongs to the; American Subcontractors Association Los Angeles Orange County Chapter, Masonry Industry Training Association, Masonry Contractors Association of America, Masonry Industry Training Association and the California Conference of Mason Contractor Associations.