Hydro-Québec outage while you’re away: what happens at your cottage?
Updated
You’re in Montréal, it’s been blowing hard over the Townships since yesterday, and the cottage thermostat app says “offline.” On Hydro-Québec’s site, your road is inside the outage area. Here’s what actually happens inside an empty house when the power goes — and what you can do from a distance.
What to do during and after the outage
1. Follow the outage on Hydro-Québec’s site
Grid status shows affected areas, the cause when it’s known, and an estimated restoration time when one is available. Note when the outage started: your insurer will want it if something thawed or leaked.
2. Weigh the risk by season and length
A short summer outage mostly affects the freezer. A long winter outage is about heat and plumbing. If it’s bitterly cold and restoration is slow, arrange for someone to go by.
3. Give clear instructions to whoever goes
Where the main shut-off is, when to close it, which breaker not to touch, who to call. Ask them never to go near a downed line and not to reset anything in the panel without your say-so.
4. When power returns, get confirmation that everything restarted
Power coming back doesn’t mean the house is heating. Have someone confirm the baseboards, furnace or heat pump are running, the sump pump is plugged in and the freezer is humming.
5. Don’t let anyone improvise with a generator
Québec.ca is blunt about it: a generator goes outdoors — not in the house, not in the garage — in a properly ventilated spot well away from doors and windows. Carbon monoxide is toxic, odourless and colourless. A generator is never plugged straight into an outlet to power the house: connecting one to the panel requires a transfer switch installed by a master electrician.
6. Document it
Photos of the blinking clocks, the thermostat, the freezer, any notice left at the door. If food was lost or you find damage, call your insurer or broker: coverage varies from one policy to the next.
What happens inside the house, in order
The heat stops. Electric baseboards and heat pumps stop the moment the power does. Most propane, gas or oil furnaces stop too: their igniter, blower or controls need electricity. Only something that runs without power, like a wood stove that someone has lit, keeps heating.
The well pump stops. No water pressure beyond what’s left in the tank. That’s actually good news if there’s a leak: less water can run. But the pipes are still full, so still exposed to freezing.
The sump pump stops. If the outage comes with heavy rain or during the thaw, the pit can fill and overflow. The storm-plus-outage combination is often what wets basements.
Connected devices go quiet. Router, smart thermostat, leak sensor, camera: all dark, except anything with a battery and a cellular connection. The information stops just when it would help most.
The fridge and freezer warm up. With the doors shut they hold the cold for a while; after that, food thaws. When power returns, a freezer can refreeze food that thawed, and nothing on the surface shows it.
The house cools down. At its own pace, depending on insulation, wind and the outdoor cold. The basement, crawl space and exterior walls go first.
And when the power comes back
Not everything restarts. A breaker can trip when service is restored. A propane furnace can stay in error. A thermostat can fall back to a default setting.
Clocks blink. The simplest sign there was an outage, even a short one.
Frozen pipes thaw. If a pipe split in the cold, water starts running as the house warms up — and the well pump, back on, keeps it coming.
Why outages last longer in the hills. In Sutton, Potton and Abercorn, lines run through the woods. Ice and wind bring trees down on the wires, roads take time to clear, and isolated areas can come back after the bigger centres.
Prevention: what you can do, and what belongs to an electrician
What an owner can do:
- Know where the main shut-off is, and have each key appliance’s breaker clearly labelled in the panel.
- Leave a minimum-recording thermometer in the coldest room, so you know afterward how low the house went.
- Put a cup of frozen water with a coin on top in the freezer: if the coin is at the bottom, the food thawed.
- Sign up for Hydro-Québec Info-pannes notifications for the cottage address.
- Have a person or a caretaking service who can get there quickly.
What belongs to a master electrician:
- Installing a generator with a proper transfer switch.
- Adding backup power for the sump pump or the router.
- Checking a panel or circuit that trips when power returns.
- Installing whole-house surge protection at the panel.
In an empty house, how long before anyone notices?
During an outage, you know there’s a problem — but not what it’s doing inside the house. And when the power returns, the app reconnects and everything looks normal, even if a breaker tripped or a pipe is leaking in the basement. How often someone stops by sets how long those problems stay invisible. After a long outage or one in deep cold, a post-storm check settles the question.
What we look at on a visit
After an outage, we first confirm there’s power and look at the stove and microwave clocks. Through the panel door, we note any tripped breaker — especially heating, water heater and pump circuits — never resetting anything without your go-ahead. We read the main thermostat and the thermometer in the coldest room, check the water level in the sump pit, and photograph any Hydro-Québec or municipal notice left at the door.
If something didn’t restart, we call you the same day with photos, and bring in a master electrician or an RBQ-licensed plumber if needed.