How to Prevent Frozen Pipes in Ottawa Winters
Winter

How to Prevent Frozen Pipes in Ottawa Winters

An Ottawa master plumber's checklist for keeping pipes from freezing during -30°C cold snaps.

2026-02-10 · Winter

Ottawa winters routinely hit -25°C, and every January brings burst-pipe calls. Insulate pipes in unheated spaces, disconnect hoses and locate your main shut-off before the cold snap.

During extreme cold, open cabinet doors under sinks on exterior walls and let one vulnerable cold tap drip overnight.

If a pipe freezes, shut off water immediately and thaw gently with a hair dryer — never an open flame.

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