IUB Customer Service analysts respond to public inquiries made by telephone, email, and written correspondence regarding utility activities or complaints about utility service for which the IUB has jurisdiction.  

If you are unable to resolve issues with your utility service provider or have questions about utility service rules and requirements, the IUB's Customer Service staff can assist you from 8 a.m. to 4:30 p.m. weekdays, not including official state holidays.


You may file a complaint online.

By Email

 Customer complaints or inquiries - customer@iub.iowa.gov

By Phone

Toll-free for utility customer complaints or inquiries, 877-565-4450

By Mail or In Person

Iowa Utilities Board
Attn: Customer Service
1375 E. Court Ave.
Des Moines, IA 50319-0069

By Fax