The Pine Hills blocks off Madison Avenue run on long slopes, and every one of them becomes a problem the night a storm glazes over. Gradeworx Contracting plows and salts through Albany winters with that geometry in mind, pushing the drive with the grade, clearing the walk to its full edges, treating the spots where a parked car will otherwise slide. Snow shows up here in every temper, from dry powder to the wet heavy load that rides in on a warm front. Crews go out for all of it. A driveway open at six in the morning is a small thing, and it is the entire job.