Preparing household plumbing for a Winnipeg winter
Winnipeg regularly experiences some of Canada's coldest winter temperatures. Plumbing that is adequately prepared in the fall is far less likely to cause problems when temperatures drop significantly. The following steps are generally applicable to most Winnipeg homes — some are straightforward homeowner tasks, others are best handled by a plumber.
Do not apply open flame (torch or heat gun) to a frozen pipe — this is a fire hazard and can damage the pipe. A heating pad, warm damp towels, or a hair dryer at a safe distance are safer options. Call a plumber if you are unsure.
Outdoor taps and hose bibs
Before freeze season, disconnect and store garden hoses. Find the interior shut-off valve for each outdoor tap (usually in the basement or crawlspace directly inside from the exterior tap) and close it. Then open the exterior tap briefly to drain any remaining water from the line. Leave the exterior tap in the open position so any residual water can drain or expand without pressure buildup.
Pipes in vulnerable locations
Pipes that run through unheated spaces — exterior walls, garages, crawlspaces, or poorly insulated areas — are at risk of freezing during extreme cold. Have a plumber assess these locations if you've experienced frozen pipes before or if you're uncertain about your home's insulation. Pipe insulation foam and electrical heat trace cable are two options for vulnerable sections.
Sump pump check
A sump pump failure during spring melt is one of the most common sources of basement flooding in Winnipeg. Test the pump before freeze season: pour water into the pit until the float activates and the pump runs. Confirm water discharges from the exterior outlet. If the pump doesn't activate, runs but doesn't discharge, or makes unusual sounds, call a plumber before the ground freezes.
Water heater
Water heaters work harder during cold weather — particularly those in unheated utility areas. If your unit is aging or showing any signs of stress, fall is a practical time to have it serviced or replaced rather than waiting for a failure in January.
Main shut-off valve
Know where it is and confirm it operates. A valve that hasn't been turned in years may be stiff or stuck — this is worth checking and servicing before winter, not during a burst pipe emergency.
If you're leaving for an extended period
If the home will be unoccupied for more than a few days during cold weather, keep the thermostat set no lower than 13°C. For longer absences, consider shutting off the main water supply and draining the pipes. A plumber can advise on the best approach for your specific home.
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