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Contact Customer Service at 1-888-664-9376
Monday to Friday: 7:30am - 8:00pm
P.O. Box 5700Markham, ONL3R 1C8
Report an Outage Online
Report an outage, 24/7 at 1-800-434-1235
My Bill ExplainedRates and ChargesSubmit a Meter ReadingExplain Delivery ChargesBilling & Payment Methods
Billing & Service Inquiries:Small Business examples are: Convenience Stores, Gas Stations, Retail Stores.
Customer Service1-888-664-9376Monday to Friday: 7:30am - 8:00pmMail: P.O. Box 5700, Markham, ON L3R 1C8
Storm Centre outage map is updated every 10 minutes.
Report an outage, 24/7 at 1-800-434-1235 or
Outage information at your fingertips. Get timely updates, a more localized view and track local weather with the
Storm Centre online map and mobile app for both
Sign up for
Outage Alerts, and stay in the know when the power goes out.
Need to locate underground cables on your property, temporarily disconnect power, or trim trees that pose a hazard? We are here to help. Choose from one of the following options:
Tree TrimmingTemporary DisconnectUnderground Cable LocateElectrical InspectionNew Service LayoutService UpgradeStray Voltage AssessmentLarge Vessel Move
General Inquiries: 1-888-664-9376Real Estate Inquiries: RE@HydroOne.com
Large Business Account examples are: Hospitals, Manufacturing & Mines.
1-866-922-2466Monday to Friday: 8:30am - 4:00pm
Access your account 24/7 and take advantage of our services online!
Paperless BillingAutoPayHigh Usage AlertsOutage AlertsBudget BillingSummary Billing
Learn what to do if you have suffered
damage to your property.
General Inquiries & Company Directory:416-345-50001-877-955-1155 (toll-free) Mailing Address:Hydro One Networks Inc.483 Bay St. (South Tower), 8th Floor Reception Toronto, Ontario M5G 2P5Regulatory Affairs:Email416-345-5866
General Shareholder Inquiries:Computershare Trust Company of Canada514-982-75551-800-564-6253 (toll-free)416-263-9394 (fax)1-888-453-0300 (fax, toll-free)
Analysis & Institutional Investor Inquiries:Email Hydro One Investor RelationsMailing Address:Hydro One Investor Relations483 Bay St., 7th FloorToronto, Ontario M5G 2P5Canada
Billing & Service Inquiries
1-888-664-9376 (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)
1-877-447-4412 (8:30 a.m. - 6:00 p.m.
EST, Mon - Fri)
Power Problems & Emergencies Inquiries
1-800-434-1235 (24 hrs a day, 7 days
Hydro One Networks
P.O. Box 4102, Station "A"
Toronto, ON, M5W 3L3
Key Account Management
Media Requests & Inquiries
General Inquiries & Company Directory
Hydro One Networks Inc.
483 Bay Street, South Tower, 8th Floor
Toronto, ON M5G 2P5
Real Estate Services
1-888-664-9376 (General Inquiries)
General Shareholder Inquiries
Computershare Trust Company of Canada514-982-75551-800-564-6253 (Toll-free)416-263-9394 (Fax)1-888-453-0330
Computershare Trust Company of Canada100
University AvenueToronto, ON M5J 2Y1
Analysis & Institutional Investor Inquiries
Hydro One Investor Relations
Hydro One Investor Relations
483 Bay Street, 7th Floor
Toronto, ON M5G 2P5Canada