1-800-790-3201 Want To Enroll? Simply contact NWC at 1-800-790-3201 to enroll in coverage. Our agents are available Monday through Friday, 9am to 5pm PST.Our agents can answer any questions you have, and enrolling only takes about 5 minutes.You may also use our contact form for any information. Coverage available in: Please enable JavaScript in your browser to complete this form.Your Name *Your Email *Phone *Your Message *MessageSend Current Customer? manage your policy Mailing Address: National Water Company2730 W Marina DriveMoses Lake, WA 98837 Phone: 1 (800) 790-3201 Email: info@nationalwatercompany.com Contact Us Today!