For any project small or big... call or click before you dig.

An underground locate determines if and where underground utilities exist on your property. When you plan ahead, you avoid potential power loss, damage liability and serious personal injury.

Before you start planting a garden, building a fence or even installing a dock, contact Ontario One Call to get a FREE underground utility locate. You will receive a response from various utilities indicating whether or not there is underground infrastructure within your requested dig area. There are many types of underground infrastructure such as electricity cables, communication cables, gas pipes, water pipes and sewers.

Take a moment to consider the risks of digging without knowing what’s buried underneath. Digging without a locate not only puts your safety at risk, but could also make you liable for repair costs if you or your contractor damage any underground infrastructure.

DELAY ALERT: Due to an increase in requests for underground cable locates, customers will experience longer wait times than usual. If you require more information, please contact the Locate Service Provider listed on your locate confirmation sheet.

For more information, please call us at 1-888-664-9376.

Requesting a locate is free, it’s easy and it’s the law.

How to request an Underground Locate

1. Submit an e-ticket at or contact Ontario One Call at 1-800-400-2255. The service is available 24/7.

2. To help you plan your work, contact Ontario One Call a minimum of five business days’ prior to digging.

3. A service representative will clearly mark where the underground infrastructure runs through your dig area and will provide a locate sheet that includes a diagram of what has been located.

4. If markings are not required, you will still receive a response from the utility to indicate that your work area is clear. Do not dig until you have received all responses.

5. Once you have your locates, be sure to practise safe digging and follow any additional instructions provided by each utility.

6. Visit Ontario One Call or Dig Safe for more information.

Knowing what’s below protects you and your family from:
  • Injury to yourself, your family or the public

  • Disruption of vital services to you and your neighbours

  • Environmental impacts

  • Expensive repairs.

Promote safe digging practices by encouraging your neighbours to:
  1. Call or click before you dig

  2. Wait for locates

  3. Respect the marks

  4. Follow utility guidelines

  5. Dig with care.

Public Safety

Electrical equipment is all around us. Keep you and your family safe with these power safety reminders.

Learn more

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