Customer Support
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Contact us about our energy programs or your billing questions.
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Customer Care - Residential and Small Commercial
Nicor territory, in English and Spanish: 866-799-2674
Peoples Gas/North Shore Gas territory, in English and in Spanish: 888-282-9459
Monday – Friday: 8:00 am to 6:00 pm
Customer Sales - Residential and Small Commercial
Nicor territory, in English and Spanish: 866-642-6794
Peoples Gas/North Shore Gas territory, in English and in Spanish: 888-282-9442
Monday – Friday: 8:00 a.m. to 6:00 p.m.
Saturday: 9:00 a.m. to 4:00 p.m.
Mailing Address
Nicor Advanced Energy
PO Box 3042
Naperville, IL 60566-3072
Email Address
Questions and Concerns. Click Here
We cannot accept requests for cancellation by email. Please send your request to the address noted above or call us at 866-799-2674.
24-Hour Emergency Service
In case of emergencies or if you smell natural gas, call Nicor Gas at 1-888-Nicor4U (1-888-642-6748). In the Peoples Gas territory, call 866-556-6002. In the North Shore Gas territory, call 866-556-6005.