Agencies
Services
Utility Complaints
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, Phone: 800-755-5000
- Atmos Energy, Phone: 800-621-1867
- ComEd, Phone: 800-334-7661
- MidAmerican Energy, Phone: 888-427-5632
- Nicor, Phone: 888-642-6748
- Peoples Energy, Phone: 866-556-6001
If you already have contacted your utility company and were not able to resolve the problem, follow the link provided below 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.