Customer Support

Have a question? Need help? Find it here.

Downed Line? Gas Odor?

Call Immediately

Common Questions

Yes, you can pay your bill by phone by calling Ameren's authorized payment vendor, SpeedPay. Phone payments can be made using electronic check or with a VISA, MasterCard, Discover or American Express credit or debit card. There is no fee to pay by phone.

For Ameren Missouri customers, please call 866.268.3729

If you find yourself behind on your energy bill because of financial challenges, we’re here to help with these payment assistance options.

Sign up for alerts to keep you informed about your account, including any energy assistance you may receive.

Check your payment history for confirmation of payments received.

Sign up for alerts to know when your payment was received.

Find information on starting, scheduling, moving service, deposits and more.

Sign up for alerts to know when your request for service has been completed.  

Find out more about Budget Billing and when adjustments are made.

Explore all of Ameren Missouri’s billing options.

Sign up for alerts to know when your Budget Billing amount is adjusted.

Auto Pay can simplify your life. Making changes to your enrollment is easy.

Explore all of Ameren Missouri’s billing options

Sign up for alerts to receive payment confirmations and other billing and payment notifications.


Need information about your account, service or bills?



Connect with us on Social

Need to address topics such as your bill, energy assistance, your online account, street light outages, or the Ameren Mobile app? We invite you to start a conversation with us on Facebook or Twitter and ask that you follow each network's appropriate community guidelines.

If your inquiry is account-specific, please contact us in a private message and include your address and account number.

Note: In order for us to assist you, you must be the account holder or an authorized user.


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Hours of Availability

Monday through Friday, 7 a.m. - 10 p.m.

Saturday and Sunday, 8 a.m. - 4 p.m.

Messages received outside of these hours will get responded to as soon as we're back online.


Contact us by Phone

Report Street Light Out

Illinois: 800.755.5000

Missouri: 800.552.7583


Phone: 800.552.7583

Fax: 866.297.8054

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


Phone: 877.426.3736

Fax: 866.222.3471

Hours: M-F 7:00 a.m. - 5:30 p.m.

Website Support

Phone: 877.263.7361

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

Construction & Engineering

Phone: 866.992.6619

Fax: 314.641.2406

Email: ConstructionHotline@ameren.com

Hours: M-F 6:30 a.m. - 5:00 p.m.

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

Contact us by Mail

For Payments

Ameren Missouri

PO Box 88068

Chicago, IL 60680-1068

All Other Correspondences

Ameren Missouri

PO Box 790098

St. Louis, MO 63179-0098