A dry afternoon isn't the whole weather window. Concrete needs suitable conditions for preparation, drying, application, and curing. Ask about all four before trying to squeeze sealing into a late-fall weekend.
Ask About the Entire Weather Window
Check the forecast for rain and overnight lows. Ask how the contractor will check the air and concrete temperatures, and whether the surface has dried enough. The selected product’s instructions should determine whether conditions are suitable.
Get the actual product guidance for returning foot and vehicle traffic. A neighbour's experience with a different sealer isn’t a reliable schedule for your driveway. Make sure parking and household access can remain available elsewhere if the timetable changes.
Resolve Surface Concerns First
Old coatings, peeling, visible moisture issues, cracks, or deterioration may need additional assessment. Sealer doesn’t hide every defect or replace repairs. If the preparation can’t be completed properly within the available conditions, postponing can be the more practical decision.
A quote should distinguish normal preparation from stripping or other additional work. Ask what would cause the scope or price to change.