Contact Us

24-Hour Emergency Assistance 1-877-969-0999
Call if you suspect a natural gas leak or a build up of carbon monoxide.

For all other inquiries...

Online with MyAccount

Log in or register for MyAccount to find information about your account, billing and gas usage.   Retrieve your user ID or password.

By email

Tell us how we can help. We'll get back to you within two business days.

By phone

Call us at 1-888-774-3111
Monday to Friday 8 a.m. to 6 p.m. (except holidays)

By Mail

For Inquiries
Union Gas
PO Box 2001
Chatham, ON
N7M 5M1

For Bill Payments
Union Gas
PO Box 4001, STN A
Toronto, ON
M5W 0G2

Call before you dig 1-800-400-2255

Website: Ontario One Call

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