A Twin Cities home runs through four genuinely different operating conditions each year. A maintenance plan written for a mild climate misses most of what matters here.

The calendar is not a formality.

Winter

Ice, frozen lines, and heating load

Long stretches below freezing put sustained pressure on the roof edge, the water lines on exterior walls, and a furnace running most of the day.

Spring

Meltwater and grade

Thaw plus rain is when grading, gutter routing, and the sump system get their real test. Most basement moisture is discovered in a six week window.

Summer

Storms and cooling load

Straight-line wind and hail drive roof and siding claims. Cooling equipment runs hardest exactly when a failure is least convenient.

Autumn

The closing window

Exterior work that doesn’t happen before the ground freezes waits until spring. This is the season where deferring is genuinely expensive.

General regional conditions, not a prediction for any specific property or year.