Cool Commonwealth Edison Illinois Customer Service 2025. Customer service phone numbers for illinois utilities are listed below. You will be using the voice response unit or speaking to a customer service representative where your request or problem will be entered into our system.
Sign in register menu register menu You will be using the voice response unit or speaking to a customer service representative where your request or problem will be entered into our system. If you already have contacted your utility company and were not able to resolve the problem, follow this link to file.
