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We value our relationship with you and strive to provide you with

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Contact Customer Service at 1-888-664-9376

Monday to Friday: 7:​30am - 8:​00pm

Saturdays: 9:​00am - 3:​00pm

Report an Outage Online

Report an outage, 24/7 at 1-800-434-1235

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Theft of Power Tip Line

Billing & Service Inquiries

(7:30 a.m. - 8:00 p.m. EST, Mon - Fri and 9:00 a.m. - 3:00 p.m. EST, Saturdays)


Billing & Service Inquiries for Business (Demand)

(8:30 a.m. - 6:00 p.m. EST, Mon - Fri)


Power Problems & Emergencies Inquiries

(24 hrs a day, 7 days a week)

Mailing Address
Hydro One Networks
P.O. Box 4102, Station "A"
Toronto, ON, M5W 3L3

Key Account Management

Media Requests & Inquiries


1-877-506-7584 (Toll-free)


General Inquiries & Company Directory


1-877-955-1155 (Toll-free)

Mailing Address
Hydro One Networks Inc.
483 Bay Street, South Tower, 8th Floor Reception
Toronto, ON M5G 2P5

Regulatory Affairs

Real Estate Services

1-888-664-9376 (General Inquiries)

1-888-231-6657 (Real Estate Services)

General Shareholder Inquiries

Computershare Trust Company of Canada

1-800-564-6253 (Toll-free)
416-263-9394 (Fax)
1-888-453-0330 (Fax, toll-free)

Mailing Address
Computershare Trust Company of Canada
100 University Avenue
Toronto, ON M5J 2Y1

Analysis & Institutional Investor Inquiries

Hydro One Investor Relations


Mailing Address
Hydro One Investor Relations
483 Bay Street, 7th Floor
Toronto, ON M5G 2P5