Professional Janitorial Service is one of the fastest growing, privately owned, commercial cleaning companies in its region. PJS began in January 1986 in Austin, Texas. In June 1987, it added Houston. The company now has locations in four major Texas markets: Houston, San Antonio, Austin and El Paso. PJS established its corporate philosophy based on the concepts of the ManageMen OS1 Cleaning System developed by John Walker of ManageMen, with whom it has a close relationship. PJS uses the ManageMen OS1 Cleaning System, which improves janitorial operations with state-of-the-art technology. This system exceeds every industry standard for consistency, quality and commitment.