West Michigan homes get more weather than most. Lake-effect snow, freeze-thaw cycles, summer humidity, hard winters. The maintenance calendar isn't optional; the climate enforces it. Skip a season and you pay for it the next.
Below is a working schedule by season. Most of it is contractor work. Some of it is homeowner work. The dates are calibrated to Grand Rapids and the surrounding area; if you are further north (Traverse, Petoskey) push everything two weeks later, further south (Kalamazoo) two weeks earlier.