The Houston Public Works, along with Water, provides many of the basic services that affect the daily lives of everyone who reside and work in Houston. Citizens across the City of Houston may refer to given customer service contact information to avail assistance with regard to relevant concerns and queries. City of Houston Water Customer Service: (713) 371-1400 | Customer Service Hours: Monday - Friday, 8:00AM - 7:00PM Drainage Service: (713) 371-1111 High Bill Inquiry: (832) 394 - 2455 Residential Customers: Customer.Service@houstontx.gov Commercial Customers: Ucscomm@houstontx.gov Drainage Customers: Drainage2@houstontx.gov Mailing Address - Correspondence: Customer Account Services P. O. Box 4863 Houston, TX 77210-486 Mailing Address - Payments: Customer Account Services P. O. Box 1560 Houston, TX 77251-1560 Overnight Payments Address: Customer Account Services 4200 Leeland Houston, TX 77023-3016 City of Houston Water Bill Pay: (713) 371-1265 Taps and Meters - Cus