Customer Service
We make managing your energy easy.
Short on time? Try these online options to manage your account.

Billing & Payment Options

Pay your Ameren bill online or through your bank's service.

Update Account Information

Make sure you're receiving important information and updates about your service.

Payment Assistance

If you're struggling to keep up with energy bills, you're not alone. We’ve designed a new online experience to show your eligible options.

Report an Outage

Power out? To help us speed your restoration, you can report it below. Then, stay informed on the latest updates by visiting the Outage Center.
Contact Us

Residential

Phone: 1.800.755.5000
Hours: Monday-Friday 7:00 a.m. - 7:00 p.m.

Residential

Phone: 1.800.552.7583
Fax: 1.866.297.8054
Hours: Monday-Friday 7:00 a.m. - 7:00 p.m.

Commercial

Phone: 1.800.232.2477
Fax: 1.877.263.7369
Hours: Monday-Friday 7:00 a.m. - 5:30 p.m.

Commercial

Phone: 1.877.426.3736
Fax: 1.866.222.3471
Hours: Monday-Friday 7:00 a.m. - 5:30 p.m.

Lake of the Ozarks

Phone: 1.573.365.9203
Email: lake@ameren.com 
Hours: Monday-Friday 9:00 a.m. - 3:00 p.m.

Website Support

Phone: 1.877.263.7361
Hours: Monday-Friday 7:00 a.m. - 7:00 p.m.

Construction & Engineering

Phone: 1.866.992.6619
Fax: 1.314.641.2406
Email: ConstructionHotline@ameren.com
Hours: Monday-Friday 6:30 a.m. - 5:00 p.m.

Report Street Light Out

Phone: 1.800.552.7583

Call Before You Dig

Phone: 811

 

Reach Us By Mail


Payments

Ameren Illinois
PO Box 88034
Chicago, IL 60680-1034

Payments

Ameren Missouri
PO Box 88068
Chicago, IL 60680-1068

Other Correspondence

Ameren Illinois
PO Box 88034
Chicago, IL 60680-1034

Other Correspondence

Ameren Missouri
PO Box 790098
St. Louis, MO 63179-0098
Scam Awareness
Learn more about the different scams and tactics being used to convince customers to provide personal information or payments.
Frequently Asked Questions