www.ameren.com

Customer Support

Have a question? Need help? Find it here.

Chat With Us

Log in and Chat. (Currently only available for Residential Customers)
Chat Hours: M-F 7:00 a.m. - 7:00 p.m.

Email Us

Email us with your specific question or issue.
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Customer Service Center

Answers to your account, service and bill related questions.
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Contact Us

Residential

  Phone:800.552.7583
  Fax: 800.297.8054
  Hours: 7:00 a.m. - 7:00 p.m. M-F


Business

  Phone: 877.426.3736 
  Fax: 866.222.3471
  Hours: 7:00 a.m. - 5:30 p.m. M-F


Construction & Engineering

  Phone: 866.992.6619
  Fax: 314.641.2406
  Hours: 7:00 a.m. - 5:30 p.m. M-F
   

Website Support

  Phone: 877.263.7361  
  Hours: 7:00 a.m. - 7:00 p.m. M-F


Other Services

  Call before you dig! Phone: 811  
  Speech & Hearing Impaired Phone: 711 or 800.735.2966
   Visually Impaired Phone: 800.552.7583
   Interpreter Service Phone: 800.552.7583

Payment

  Ameren Missouri
  PO Box 88068
  Chicago, IL 60680-1068


Correspondence

  Ameren Missouri
  PO Box 790352
  St. Louis, MO 63179-0352