Hudson Valley winter is a mixed business — six inches of powder one week, a glaze of freezing rain sliding off the ridge the next. Wallkill Paving & Excavation handles both, plowing driveways and lots, clearing walks, and putting down salt or sand where a slope and a shadow conspire. Commuters leave Wallkill early, so the pushing has to be done before their headlights come on. A lot cleared back to its true edges — curbs showing, room to park — is worth the early alarm. When the storm finally breaks, the ridge comes out white and the pavement is black.