Metropolitan Waterworks Authority (MWA)

The Metropolitan Waterworks Authority (MWA) is Thailand's state enterprise responsible for producing, distributing, and selling treated water to Bangkok, Nonthaburi, and Samut Prakan provinces. Operating under the Ministry of Interior, MWA ensures safe, clean drinking water reaches millions of customers through an extensive network of treatment plants, reservoirs, and distribution pipelines. The authority maintains high water quality standards, with tap water in Bangkok considered safe for consumption after boiling. MWA provides comprehensive water services including new water connections for residential and commercial properties, meter readings and monthly billing, payment processing through multiple channels, leak reporting and repair services, water quality testing and monitoring, and customer support for water-related issues. Customers can manage their accounts through various convenient channels including the MWA mobile app, online payment portal, call center at 1125, physical branch offices throughout the service area, and payment agents including banks, convenience stores, and post offices. The mobile app allows customers to view bills, make payments, report problems, check usage history, and access customer service. For expats moving to Bangkok, establishing water service requires submitting an application with necessary documents including rental contract or property ownership papers, identification, and initial deposit. The water billing cycle is typically monthly, with bills showing usage in cubic meters and charges based on progressive rates. MWA also provides information about water conservation programs and offers services like water quality testing for customers with concerns.