TWW's Cortland Street office is closed to the public due to COVID-19-related issues until further notice. Customer Service can be reached by telephone at (609) 989-3055, Monday to Friday, from 8:30 a.m. to 4:30 p.m. The e-mail address for customer service and billing is firstname.lastname@example.org. Customers can pay TWW bills online by visiting www.trentonnj.org/354/Online-Payments, or at trentonwaterworks.org, clicking on the “Pay Your Bill” link. TWW's 24/7 emergency phone number is (609) 989-3222.