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We're here to support your needs and keep you connected.

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Report an outage online

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*Monday to Friday: 7:30am - 8:00pm

P.O Box 5700, Markham, ON L3R 1C8

We're ready to help you

We know how important safe and reliable electricity is to your daily life. Whether you have questions about your account or bill, are looking to request a service, report an outage, or get advice on energy savings, our team is here to help.

We value our customers by listening to truly understand your unique needs as we strive to provide assistance and answers quickly, when you need us most.

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Outage map

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Builder & contractor services

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Billing & payment options

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Move in/out or new service

To report an outage

Call us or report it online, we're available 24/7

1.800.434.1235 Report outage online

Local customer care representatives

Our team will help you make it an easy experience and will assist you with any concern you may have. Connect with us at 1.888.664.9376 or use the live online chat at the bottom right corner of your screen.

Supportive supervisors

If you feel your issue hasn't been resolved, our supervisors are available to assist further. Most times you can speak with a supervisor right away, but if call volume is high, they'll contact you within one business day to help resolve your concern

Customer relations

If you've spoken to a supervisor and aren't completely satisfied with the solution provided, they will offer to escalate your feedback or complaint to our Customer Relations office at

10-day commitment

For all complaints or issues that are escalated to either a supervisor or Customer Relations, we'll either resolve your issue, or commit to a firm resolution date, within 10 days of when we first become aware of your complaint.

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Looking for something specific?

Click the below drop-down menu to see various options pending to your unique needs.

Residential and small businesses inquiries

My bill explained Rates and charges Submit a meter reading Explain delivery charges Billing & payment methods

Billing & service inquiries:

Small Business examples are: Convenience Stores, Gas Stations, Retail Stores.

Customer service


Monday to Friday: 7:30am - 8:00pm

Mail: P.O. Box 5700, Markham, ON L3R 1C8

Power outages

Our Storm Centre outage map is updated every 10 minutes. Report an outage, 24/7 at 1-800-434-1235 or online. 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 Android and iOS. Sign up for Outage Alerts, and stay in the know when the power goes out.

Request a service

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 trimming Temporary disconnect Underground cable locate Electrical inspection New service layout Service upgrade Stray voltage assessment Large vessel move

Right of way and property maintenance

General Inquiries: 1.888.664.9376

Real Estate Inquiries:

Large business (>50KW) accounts

Large Business Account examples are: Hospitals, Manufacturing & Mines.


Monday to Friday: 8:30am - 4:00pm

Media inquiries

Moving made simple

myAccount self-serve

Access your account 24/7 and take advantage of our services online!

Paperless billing AutoPay Outage alerts Budget billing Summary billing

Account deletion

To delete your myAccount Self-Service account and all of the associated data, please contact Customer Service at 1.888.664.9376 Note: this will not affect your service with us or your customer billing account.

Your claims

Learn what to do if you have suffered damage to your property.

Corporate head office

General inquiries & company directory:

416.345.5000 1.877.955.1155 (toll-free)

Mailing address:

Hydro One Networks Inc.

483 Bay St. (South Tower), 8th Floor Reception

Toronto, Ontario M5G 2P5

Regulatory affairs 416.345.5866

Investor contacts

General shareholder inquiries

Computershare Trust Company of Canada

514.982.7555 1.800.564.6253 (toll-free) 416.263.9394 (fax) 1.888.453.0300 (fax, toll-free)

Analysis & institutional investor inquiries:

Hydro One Investor Relations

Mailing address:

Hydro One Investor Relations

483 Bay St., 7th Floor

Toronto, Ontario M5G 2P5, Canada

Theft of power tip line

The Hydro One Ombudsman

The Office of the Ombudsman is an independent advocate for fair process, decision-making and equity in the treatment of every person who seeks or receives service or those who do business with us.

Learn more