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Underground cable locate icon

Thinking of putting in a new garden?

Call before you dig

Installing a fence, planting a tree, or digging around our network? Not only could you be liable for repair costs, accidentally striking an underground cable can result in serious injuries or even death. Stay safe and call Ontario One Call.


How it works

This free service helps you to stay safe when digging by marking the location of underground cables and pipes so you can avoid them when conducting your work.

 
 
 
 

  • Call Ontario One Call at 1-800-400-2255 or submit an e-ticket at www.on1call.com. The service is available 24 hours a day, 7 days a week.

 
 
 
 

  • To help you plan your work, Ontario One Call will need at least five days' notice. A service representative will clearly mark where cables run through your property and provide you with a locate sheet that includes a diagram of where your underground facilities are located.

 
 
 
 
  •  
    If markings are not required, you will still receive a locate sheet.

 
 
 
 
  •  

    Once you have your locates it is important that you practice safe digging and follow any additional instructions provided by each utility.



 
 
 
 

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Upgrade your property and your safety.

REQUEST A LOCATE FIRST.

When you plan ahead, you avoid potential power loss, damage liability and serious personal injury. 

Call 1-800-400-2255

or Submit an e-ticket at www.on1call.com.

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Easily pay your bill, change your preferences and more.

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Electrical Inspections

Prevent electrical hazards in your home and business by requesting an inspection before beginning upgrades or installations. It will not only help keep you safe, it's required by law.

Learn More

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Tree Trimming

If you see hazardous vegetation around electricity lines, request a tree trimming to help manage the issue safely. If the line is determined to be on Hydro One property, we'll send a qualified team to assess the issue.

Learn More

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Temporary Disconnect

By arranging a Temporary Disconnect, you can plan work you need to do with the power off in advance. Schedule workers in a 24-hour window to get your project done on time.

Learn More

Download the Hydro One Mobile application from these app stores

Use the app to see planned and unplanned power outages in our service territory, the cause of the outage (if known), crew status and estimated restoration times, outage summaries by region or city, or search by postal code.

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Google Play

Get Hydro One Mobile for your Android device here.

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iTunes/App Store

Get Hydro One Mobile for your iPhone or iPad here.