Customer Support

Have a question? Need Help? Find it here.

Smell a gas odor? See downed power lines?

Call immediately: 800.755.5000

Residential Account

Phone: 800.755.5000

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

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Business Account

Phone: 800.232.2477
Fax: 877.263.7369

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

Online Account Options

Still Have Questions?

Correspondence Mailing Address
Ameren Illinois
300 Liberty
Peoria, IL 61602

Payment Mailing Address
Ameren Illinois
PO Box 88034
Chicago, IL 60680-1034

Web Support
Phone: 877.263.7361
Fax: 800.851.1791
Hours: 7:00 a.m. - 7:00 p.m. M-F

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