The Houston Water Department Customer Service Department is available by phone at 713-371-1400, and is open Monday through Friday, 8:00 a.m. to 7:00 p.m., as of 2015. It is also possible to contact the Houston Water Department through its live chat feature, which is available on its home page.
Click on Live Chat to chat with a water department customer service representative. Live Chat is available Monday through Friday, 8:00 a.m. to 5:00 p.m. You must enable pop-ups to use the live chat service. Click on the Contact Us tab on the Houston Water Department home page for a complete listing of contact information, including pay-by-phone numbers, fax numbers and physical addresses.