Residential
Phone: 800.755.5000
Fax: 800.851.1796
Hours: 7:00 a.m. - 7:00 p.m. M-F
Business
Phone: 800.232.2477
Fax: 877.263.7369
Hours: 7:00 a.m. - 7:00 p.m. M-F
Construction & Engineering
Phone: 888.659.4540
Fax: 217.424.6758
Hours: 7:30 a.m. - 4:30 p.m. M-F
Property Management
Phone: 800.487.5795
Fax: 800.851.1796
Hours: 8:00 a.m. - 5:00 p.m. M-F
Website Support
Phone: 877.263.7361
Fax: 800.851.1796
Hours: 7:00 a.m. - 7:00 p.m. M-F
Other Services
JULIE/Call before you dig! Phone: 811
Hearing Impaired Phone: 711
Payment
Ameren Illinois
PO Box 88034
Chicago, IL 60680-1034
Correspondence
Ameren Illinois
300 Liberty
Peoria, IL 61602