What to do when a pipe starts leaking

Step 1: Shut off the water supply

The most important first step is stopping the flow of water. Locate the shut-off valve closest to the affected fixture — usually under a sink or behind a toilet. If you can't find or close the local valve, or if the leak is elsewhere, go to the main water shut-off for the home. In most Winnipeg homes, this is located in the basement near the front of the home, where the water supply enters.

Gate valves (round wheel handle): turn clockwise until fully closed. Ball valves (lever handle): rotate 90° until the lever is perpendicular to the pipe.

Step 2: Turn off electricity if water is near electrical panels

If water is near electrical panels, outlets, or wiring, turn off the circuit breakers for those areas. Do not step into standing water near electrical equipment. If you are uncertain, turn off the main breaker for those sections and call an electrician as well as a plumber.

Step 3: Contain and document

Place buckets, towels, or plastic sheeting to contain the water and protect flooring, walls, and stored items. Take photographs before cleanup if you anticipate an insurance claim. Do not discard damaged materials until you've checked with your insurer.

Step 4: Call a plumber

With the water shut off and the area as safe as possible, call a plumber. Describe what you observed — where the leak appeared, whether it's dripping or flowing, and whether you've been able to shut off the supply. A plumber will need to assess the source of the leak before making any repair.

What not to do

Do not apply silicone sealant, tape, or epoxy putty as a permanent fix — these may delay but rarely solve the underlying cause, and can sometimes complicate proper repair. Do not open walls or ceilings before a plumber has assessed the situation. Do not use chemicals in a leaking pipe system.