A workable annual plan answers four questions for the property: which work is recurring, which work is weather-triggered, which work is annual, and who approves anything outside those three categories.
Recurring work is the mowing interval and the glass rotation. Weather-triggered work is snow clearing and the timing of spring sweeping and washing. Annual work is line painting and the heavy cleanups. Everything else is an exception that should be quoted.
Sorting exterior maintenance this way is what converts an unpredictable stack of invoices into a budget line — the approach behind EPM Services' commercial maintenance plans.
Chinooks are the single biggest scheduling variable. Mid-winter melt followed by overnight refreeze means winter maintenance has to respond to temperature swings, not only to snowfall totals.
Breakup determines when spring work can start: washing needs overnight lows reliably above freezing, and bed work needs ground that can be handled without damage. Fall closes fast, so the window between leaf drop and lasting snow is short and books up early.