A burst pipe, an overflowing toilet, or a backed-up sewer line can turn your home into a disaster zone in minutes. Knowing what to do before your emergency plumber in Mississauga arrives can mean the difference between minor water damage and a major renovation. These quick actions will help you minimize damage, protect your family, and give your plumber a head start on the repair.
Step 1: Shut Off the Water Supply

The most important thing you can do in any plumbing emergency is stop the flow of water. Every minute counts when water is spreading through your home.
- For a specific fixture: Look for the shut-off valve directly below or behind the fixture. Toilets have a valve on the wall behind the base. Sinks have valves under the cabinet. Turn the valve clockwise to shut it off.
- For a burst pipe or unknown source: Go to your main water shut-off valve and turn it off. In most Mississauga homes, the main shut-off is located where the water line enters the house, typically in the basement near the front wall. Turn the valve clockwise or, if it is a ball valve with a lever handle, turn the handle perpendicular to the pipe.
- Cannot find the shut-off: Look for the water meter, usually in the basement or near the foundation. There should be a valve on the house side of the meter.
The Government of Canada recommends that every household member know the location of the main water shut-off valve before an emergency occurs.
Step 2: Contain the Water and Protect Your Home
Once you have stopped the water flow, focus on containing what has already spilled. Move furniture, electronics, and valuables away from the affected area. Use towels, blankets, and mops to soak up standing water. If you have a wet-dry vacuum, now is the time to use it.
Open doors and windows to promote air circulation and help with drying. If you have fans or a dehumidifier, set them up in the affected area. The faster you remove moisture, the lower your risk of mould growth, which can start within 24 to 48 hours in warm, damp conditions.
Place buckets under any active drips or leaks. If water is coming through the ceiling, poke a small hole in the centre of the bulge to release the water in a controlled way into a bucket rather than letting it spread and potentially collapse a section of drywall.
Step 3: Address Electrical and Safety Hazards

Water and electricity are a deadly combination. If water has reached any electrical outlets, appliances, or your electrical panel, do not step into the water. Go to your electrical panel and shut off power to the affected areas. If you cannot safely reach the panel, call your local hydro utility or 911.
If you smell gas or suspect a gas leak near the water damage, leave the house immediately and call your gas utility’s emergency line from outside. Do not flip any electrical switches or use your phone inside the house, as a spark could ignite leaking gas. Call 911 if you are unsure whether the situation is safe.
Keep children and pets away from the affected area. Contaminated water from a sewer backup poses health risks and should not be touched without protective gloves.
Frequently Asked Questions
When should I call a professional plumber?
Call a licensed plumber for persistent drain clogs, water heater issues, low water pressure throughout the house, visible pipe leaks, sewer line backups, or any gas line concerns. DIY fixes can often make plumbing problems worse.
How can I prevent frozen pipes in winter?
Insulate exposed pipes in unheated areas, keep cabinet doors open during cold snaps, maintain indoor temperature above 15°C when away, and let faucets drip slightly during extreme cold. Know where your main water shutoff valve is located.
How often should drains be professionally cleaned?
Professional drain cleaning every 1-2 years prevents buildup and blockages. Kitchen drains accumulate grease faster and may need annual service. If you notice slow drains, gurgling sounds, or odours, schedule service promptly.
Step 4: Document Everything and Call Your Emergency Plumber in Mississauga
Before you start cleaning up, take photos and videos of the damage from multiple angles. This documentation is essential for insurance claims. Photograph the source of the leak, the extent of water spread, and any damaged belongings or finishes.
When you call for an emergency plumber in Mississauga, be ready to describe the situation clearly. Tell them what happened, whether you have shut off the water, what the water source is (clean water, grey water, or sewage), and how much water is involved. This information helps the plumber bring the right tools and equipment on the first trip.
Furnace King Home Services offers emergency plumbing services across Mississauga and the GTA. Our plumbers arrive equipped to handle burst pipes, sewer backups, water heater failures, and all other urgent plumbing situations.
When to Call 911 Instead of a Plumber
Most plumbing emergencies are stressful but not life-threatening. However, certain situations require emergency services rather than a plumber:
- You smell natural gas anywhere in your home
- Water has reached your electrical panel or live wiring and you cannot safely shut off power
- Sewage is flooding your home and you cannot safely evacuate
- A water main break outside your home is causing flooding that threatens the structure
- Someone has been injured as a result of the plumbing failure
In all other cases, shut off the water, contain the damage, and call a licensed plumber. Most emergency plumbing calls in Mississauga can be resolved within a few hours once a professional is on site.
How quickly can an emergency plumber get to my Mississauga home?
Most reputable plumbing companies offer same-day emergency service, with many providing response times of one to three hours during business hours. After-hours and weekend emergency calls may take slightly longer. When you call, ask for an estimated arrival time so you can plan accordingly.
Should I try to fix a burst pipe myself?
No. While shutting off the water and containing the damage is appropriate, attempting a pipe repair without proper tools and training can make the situation worse. A temporary patch may fail under pressure, and improper repairs can void your home insurance coverage. Leave the repair to a licensed professional.
Does home insurance cover emergency plumbing damage?
Most home insurance policies cover sudden and accidental water damage, such as a burst pipe. However, damage from gradual leaks, lack of maintenance, or sewer backups may not be covered unless you have specific endorsements. Document everything, call your insurer promptly, and keep all receipts for cleanup and repair costs. Having an emergency plumber in Mississauga respond quickly also demonstrates that you took reasonable steps to mitigate the damage.
How can I prevent plumbing emergencies?
Regular plumbing maintenance is the best prevention. Have your plumbing inspected annually, insulate exposed pipes before winter to prevent freezing, know the location of all shut-off valves, and address small leaks or slow drains before they become emergencies. A professional plumbing inspection can catch problems early.
In a plumbing emergency, every minute matters. Call Furnace King at (905) 564-5464 or visit furnaceking.ca to schedule your appointment.
