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Utility Complaints
File a Utility Complaint
If you are having trouble with your utility service, please contact your utility company. Customer service phone numbers for Illinois utilities are listed below.
- Ameren Illinois - (800) 755-5000
- Atmos Energy - (800) 621-1867
- ComEd - (800) 334-7661
- MidAmerican Energy - (888) 427-5632
- Nicor - (888) 642-6748
- Peoples Energy - (866) 556-6001
If you already have contacted your utility company and were not able to resolve the problem, follow this link to file a complaint about your utility service with the Illinois Commerce Commission. The Illinois Commerce Commission's Consumer Services Division can help you resolve your complaint about your utility service.