Requesting a locate through Ontario One Call is free.

If you are planting a tree, building a fence or a deck, putting in a pool or doing anything else that requires you to dig, you must contact Ontario One Call.

Contacting Ontario One Call will help protect your property and your loved ones. We notify buried infrastructure owners that you are digging. Once notified, they will then let you know where things are buried.

Be safe, know what is below.

Requesting a locate through
Ontario One Call is free

You must contact Ontario One Call a minimum of 5 business days (excluding weekends and holidays) before digging.

5 Steps to safe digging

Step 1 Step 1


Contact Ontario One Call (for free) a minimum of 5 business days before your dig. Provide required information: who, when, where, maximum depth, type of work (fence, pool, landscaping, etc) and method (machine or hand).

Step 2 Step 2


Wait for utility and buried infrastructure companies to mark (locate) or clear your digging area.

Step 3 Step 3


Confirm all buried infrastructure companies have responded to your request and marked the dig area properly.

Check your email!

Step 4 Step 4


Respect these marks.
These marks will be colour-coded and each buried infrastructure company will provide instructions that relate to your locate.

Step 5

Hiring a Contractor?

If you have hired a contractor, make sure your contractor has contacted Ontario One
Call before they start your project. If you are a contractor click here

There are two ways to make a locate request

Use our web portal to save time and make the most accurate locate request

Call our customer service agents