Emergency Guide
What to do in the first 60 seconds of a plumbing emergency
The first minute matters more than most homeowners realize. If water is actively escaping, sewage is backing up, or a fixture is overflowing, the goal is not diagnosis. The goal is damage control, safe shutdown, and getting the right help moving.
Your first-minute priorities
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1. Stop the water if you can
Use the local shutoff first if the problem is isolated to a toilet, faucet, dishwasher, or washing machine. If that fails or you cannot find it, turn off the home's main water shutoff. In many Ontario homes, it is near the water meter in the basement.
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2. Protect people before property
If water is near outlets, power bars, or the electrical panel, stay out of it. If you smell gas near a water heater or boiler, leave the area and call the gas utility or emergency services immediately.
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3. Stop adding water to the problem
Do not flush toilets during a sewer backup. Do not keep running taps to test pressure. Do not keep a washing machine going if a drain is overflowing.
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4. Call the right plumbing service
Describe the problem clearly: burst pipe, sewage backup, no hot water, overflowing toilet, or active leak through the ceiling. That helps the plumber prioritize the call properly. If you need urgent help, use an emergency plumbing service.
Scenario-by-scenario first actions
Burst pipe or active leak
Shut off the main water immediately. If possible, turn off the water heater so it does not keep trying to heat without water flow. Move valuables and towels, but do not waste time saving minor items before stopping the source.
Sewer backup
Stop using all plumbing fixtures. Keep people and pets away from contaminated water. If the backup is ongoing, a sewer-backup specialist is more useful than a general handyman.
Overflowing toilet
Close the toilet supply valve behind the bowl. If that does not stop it, shut off the main water. Do not keep flushing to "see if it clears."
No hot water
If there is no leak, it may be urgent but not destructive. If you smell gas, hear unusual popping, or see water pooling at the base of the heater, escalate it as a true emergency.
What to have ready before the plumber arrives
- Describe exactly where the problem started and what happened first.
- Tell them whether the main water is off and whether power or gas is involved.
- Send photos if the company requests them.
- Clear access to the leak, drain cleanout, water heater, or shutoff location.
- If you live in a condo, notify management immediately if the issue may affect shared plumbing or neighboring units.
Frequently asked questions
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Should I shut off the water if I am not sure?
If water is actively causing damage, yes. It is almost always safer to shut it off and restore it later than to wait while damage spreads.
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Should I start cleanup before calling?
Only after the source is under control. In the first minute, stopping the leak or backup is more important than cleanup.
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What if I cannot find the shutoff valve?
Tell the plumber immediately when you call. In some emergencies, simply finding and closing the shutoff is the most urgent step.
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Is no hot water always an emergency?
No. It becomes an emergency if there is active leaking, a gas smell, electrical risk, or flooding around the unit.
Related Help
Service pages and Ontario coverage to compare next
Relevant plumbing services
Emergency plumbing
The main service page for burst pipes, active leaks, and fast shutoff guidance.
Leak repair and fixture issues
Useful when the emergency starts small or turns into a hidden-leak investigation later.
Sewer backup and camera work
Critical when wastewater or floor-drain backups make the problem a health issue, not just a mess.
Ontario city guides worth checking
Toronto plumbing guide
Good for comparing dense-city response expectations and common emergency scenarios.
Barrie plumbing guide
Cold-weather bursts and basement water problems make emergency readiness especially important.
Kingston plumbing guide
Older homes and winter pipe risk make this a useful city page to compare next steps.
Need emergency plumbing help now?
Compare Ontario plumbing help for burst pipes, sewer backups, active leaks, and after-hours emergencies.