Natural Gas Leak

Know what to do if you suspect a gas leak.

Your safety is our top priority

Union Gas wants you to stay safe. Natural gas has a safety record that’s second to none. Gas leaks are rare, but can occasionally occur inside or outside your home that may put people and property at risk.

Union Gas provides 24-hour emergency response every day of the year. Call 1-877-969-0999 for natural gas emergencies.

How to detect a natural gas leak

How to detect a natural gas leak
Senses How to detect a natural gas leak
 Smell As a safety measure, we add mercaptan to natural gas to make it smell like rotten eggs or sulphur. The smell helps detect leaks.

 Sight Natural Gas is colourless. You may see:
  • Vapour and ground frosting at high pressures.
  • Bubbles if the ground is wet.
  • Patches of dead vegetation or dust blowing from a hole in the ground
  • Flames, if the leak has ignited.

 Sound A hissing or roaring noise along a pipeline route.

What to do if you smell natural gas inside your home:

  • Evacuate immediately and call Union Gas at 1-877-969-0999 or call 911 when you are safely outside.
  • Don't use electrical switches or appliances - not even the telephone or garage door opener.
  • Don't smoke, use lighters or matches.

If the smell is outside:

  • Keep clear of the area.
  • Don’t use lighters or matches, and do not smoke.
  • Don’t start any motors or motor vehicles near the area of the gas odour.

Union Gas acts immediately too

Our emergency response team or local community authority will:

  • Go to the incident site.
  • Identify the source of the problem and ensure the emergency site has been cleared of anyone whose safety may be at risk.
  • Make the situation safe.
  • Carbon Monoxide Alarm
  • Advise the customer of their options with respect to the piping system or appliance repair.

Protect yourself and your family

  • Buy a combination alarm that detects natural gas and carbon monoxide. For extra protection, get one with battery backup in case of power failure.
  • Visit the Safety section of our website for more information about natural gas safety.
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