Cement Masons Local 527 is a non-for–profit labor organization chartered in 1915 by the Operative Plasterers and Cement Masons International Union. The Local Union is dedicated to serve the interests of its members through collective bargaining with signatory contractors for the betterment of wages, benefits and working conditions. Our priorities include the education and training of our members to provide quality and skilled crafts persons for our signatory employers. To organize the un-organized contractors and their employees, to increase our membership, to provide the St. Louis area and surrounding counties with the best finished product and to provide health coverage and a pension to maintain a good quality of life for its members and their families