What Is the First Thing You Should Do in a Power Outage?

Lights go out, appliances go silent, and the fridge fan winds down. Before you start hunting for candles or flipping breakers, the very first thing to do in a power outage is figure out whether the problem is inside your house or out on the street. That single check decides everything you do for the next hour, and doing it right in the first minute keeps your family safer and your food alive longer.

The first thing to do in a power outage

Look out a window. If your neighbours are dark too, or the street lights are off, it is a grid outage and you report it to your utility. If only your house is dark, or only part of your house is dark, it is an in-home problem and the response is different. That single window check saves you an hour of poking at the breaker panel when the real fault is a downed line down the block.

Full first-minute checklist:

1. Look out at the street. Neighbours dark? Grid outage. Only you? Continue to step 2.
2. Check whether it is the whole house or half. If only half your home lost power, read why half your house lost power but no breaker tripped before touching the panel.
3. Check the main breaker at the panel. If it is tripped, do not just reset it. That trip protected you from something.
4. Unplug or switch off major appliances. When power returns it comes back with a surge that can damage electronics still turned on.
5. Report the outage. In the GTA, most homes are served by Alectra, Toronto Hydro, or Hydro One. Their outage maps and phone lines take reports and post estimated restoration times.

Steps 4 and 5 are the ones people forget. Unplugging the microwave, TV, computer, and any surge-sensitive electronics before power returns is worth ten seconds of effort and saves hundreds of dollars in surge damage.

Grid outage vs in-home outage

The response splits sharply once you know which one you have.

If it is a grid outage:

• Report it to your utility. Save their outage number in your phone now, not later.
• Keep the fridge and freezer closed. A full freezer holds food safely for roughly 48 hours if left unopened. Health Canada recommends discarding refrigerated perishables that sit above 4 degrees Celsius for more than two hours.
• Never use a barbecue, camping stove, or portable generator indoors or in the garage. Carbon monoxide is a killer during long outages.
• If you have a portable generator, run it outside at least 6 metres from any window and never back-feed it through a household outlet. A proper transfer switch is the only safe method — see how to install a transfer switch for a portable generator.
• Turn off electric ranges, ovens, and space heaters. When power returns you do not want them starting themselves in an empty room.

If only your house lost power:

• Check the main breaker in your panel. A tripped main means an overload or a fault — do not reset it more than once.
• Check individual breakers for a tripped position. Reset any tripped breaker only once, and only after unplugging what was on that circuit.
• Look outside at your meter and service mast. Damage to the mast or a dropped service wire is a utility repair. Call the utility, not an electrician.
• If part of the house works and part does not with no tripped breaker, you may have a lost neutral or a service issue. Call an ESA-licensed electrician before touching anything else.

If your power flickers off and comes right back on repeatedly, do not shrug it off. Read what does it mean if my power goes out and comes right back on.

What to do while the power stays out

• Leave one light switch and one lamp turned on so you know the moment power returns.
• Charge phones down slowly rather than all at once, or use a battery pack.
• Dress warmly and gather in one room. In winter Ontario outages this matters faster than most people think.
• Fill bathtubs and jugs with water if the outage is likely to be long, especially if you are on a well pump.
• Check on neighbours who are elderly, use medical equipment, or live alone.
• Keep flashlights, not candles, as your primary light source. Candles cause a spike in house fires during every long Ontario outage.

When power comes back on

Restoration is the moment surge damage happens. As power returns, motors kick on, breakers reset, and the incoming voltage can briefly overshoot the normal 120-volt line. To protect your home and appliances:

1. Wait ten to fifteen minutes after restoration before plugging back in high-draw appliances like ranges, dryers, and window ACs.
2. Reset one appliance at a time so any fault does not overload the panel.
3. Inspect the fridge and freezer. Health Canada recommends discarding perishable food that has been above 4 °C for more than two hours.
4. Check that clocks, thermostats, and security systems are on and correct.
5. If breakers trip when you power items back on, stop and get an inspection. The utility fault may have damaged something.

A properly sized whole-house surge protector installed at the panel is the single best defence against the restoration surge that follows a long grid outage. It is a one-time install and it protects every device downstream, not just the ones on plug-in surge strips.

Expert tip from our ESA-licensed electricians

The single most useful thing a GTA homeowner can do before the next outage is label the panel properly. Every winter storm we get calls that begin with, “the power came back but the basement is still dark and I have no idea which breaker to check.” A labelled panel turns a fifteen-minute panic into a thirty-second answer. Spend an afternoon this fall walking every circuit with a helper flipping breakers, and label each one clearly. If any breaker feeds more than one room or does not seem to match what turns off, that is a hidden shared circuit worth an ESA-licensed inspection before it becomes a mystery on a January night.

Related reading from ezsmart.ca

• Why Half Your House Lost Power but No Breaker Tripped
• What Does It Mean if My Power Goes Out and Comes Right Back On?
• Why Do I Lose Power When It Rains?
• How to Install a Transfer Switch for a Portable Generator
• Why Do I Need a Whole-House Surge Protector?

Contact us

Recovering from a power outage in Toronto or the GTA and want a panel inspection, transfer switch install, or whole-house surge protector? Call ezsmart at 416-838-9006 or visit our contact page. An ESA-licensed electrician will book same-day and get your home ready for the next storm.