Emergencies
1-888-GAS-1-GAS (1-888-427-1427)
Report a natural gas emergency or natural gas leak.
Call 24 hours a day, 7 days a week
Customer Service
1-800-624-2019
8:00 a.m. - 4:30 p.m. Monday - Friday
With the exception of holidays.
customer.service@semcoenergy.com
For questions and inquiries only.
New Gas Line Installation Contacts.
Residential Installations
Commercial Installations
Products & Services Assistance
MISS DIG
1-800-482-7171 or 811
HomeServe
1-888-300-5064
Bill payments
SEMCO ENERGY Gas Company
PO Box 740812
Cincinnati, OH 45274-0812
Correspondence and Inquiries
SEMCO ENERGY Gas Company
1411 Third Street, Suite A
Port Huron, MI 48060
Problems Receiving E-mails from SEMCO ENERGY Gas Company?
If you are having problems sending or receiving email from SEMCO, please refer to the E-mail Whitelist Instructions to be certain your e-mail service is set correctly.
Webmaster
Contact the webmaster only if you have comments or suggestions relating to this website. If it is not website related, for example Account or Payment issues, please use the contact info that can be found under "Customer Service" on this same page.
webmaster@semcoenergy.com
