Vacant unit winter checklist

A vacant unit still has to be kept warm enough not to freeze, and nobody is inside to notice a small leak before it becomes a large one. This checklist runs on a set visit schedule instead.

Checked 2026-10-03

01

Before the unit sits empty

  • Leave the heat on and set to a minimum temperature, never off, for any period through the heating season.
  • Shut off water to any fixture that will not be used, where the layout allows it without affecting other units.
  • Check for any known freeze risk area: an exterior wall pipe run, an unheated room, a garage with plumbing.
  • Confirm windows and doors close and lock properly.
02

Visit schedule while it is empty

  • Check on a set interval through the winter months, more often in an older building or a unit with a known freeze history.
  • On each visit: confirm heat is running, check under sinks and around the water heater for any sign of a leak, and confirm no window has been left open.
  • Log the date and what was checked, so a gap in the record is visible.
03

If something is found

  • A frozen or burst pipe is treated as an emergency call, not a routine one.
  • A dropped thermostat or a failed heating system in a vacant unit still needs a same day response in freezing weather.
04

Before the next tenant moves in

  • Run the heating and cooling systems and confirm both work before move-in day.
  • Test smoke and carbon monoxide alarms and replace batteries.
  • Complete the move-in inspection record before handing over the keys.

See HVAC, heating and cooling and the Toronto rental maintenance calendar.

05

Sources

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