Report Gas Leak: 888-GAS-1-GAS
Customer Service: 800-624-2019

Contact

SEMCO Contacts

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

Mail

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

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Webmaster
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webmaster@semcoenergy.com