The MWSS RO regulates Manila Water Company, Inc. and Maynilad Water Services, Inc., to ensure that water and sewerage services comply with national standards and benefit all customers within the Concession.
For inquiries or concerns regarding the quality of services provided by the Concessionaires, customers may contact the MWSS RO Customer Service Regulation Area (CSRA) at 3435-8903 / 8925-6619 / /