Parking lot crack repair is not a menu item. It sits inside a sequence, and doing the steps out of order wastes most of the spend.
Assessment comes first. Every crack, patch, and drainage point gets identified and measured before scope is written, because the mix of sealing and patching is what determines cost.
Crack sealing follows. Sealant needs a clean, dry crack, which is why the work happens ahead of any surface treatment rather than after.
Patching comes next for the areas triage disqualified from sealing. Infrared heat patching reheats and reworks the existing asphalt with new material, which produces a bond rather than a plug, and it tolerates cooler conditions better than cold patch mix does.
Seal coating a commercial parking lot is the surface layer that goes on after the repairs are complete. Seal coat requires warmer and drier conditions than crack sealing, which means its window in Wisconsin closes first. A lot that gets crack sealed in late October may need to wait until spring for seal coat.
Striping is last, and it carries its own temperature floor for paint to cure correctly.
Some work does not belong in a fall scope at all. Full depth tear out and repave, mill and overlay, and new lot layout and design are spring and summer projects in this climate. A contractor who agrees to start a full reconstruction in November is selling you a schedule they cannot control.