Fixed Bill Customer Support
Contact Us
Contact us about our energy programs or your billing questions.
Customer Care - Residential and Small Commercial
Nicor territory, in English and Spanish: 866-369-0911
Monday – Friday: 8:00 a.m. to 6:00 p.m.
Customer Sales - Residential and Small Commercial
In English and Spanish: 866-349-2455
Monday – Friday: 8:00 a.m. to 6:00 p.m.
Saturday: 9:00 a.m. to 4:00 p.m.
Mailing Address
Nicor Solutions LLC
PO Box 3042
Naperville, IL 60566-3072
Email Address
We cannot accept requests for cancellation by email. Please send your request to the address noted above or call us at 866-369-0911.
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).