Late August around Stonybrook the air goes heavy and the cicadas turn the volume up, and grass grows in that thick end-of-summer way that needs a sharp blade and a steady hand. JJ Montes Landscaping LLC keeps Hillsdale properties on schedule through it — cutting, trimming the fence lines and foundations, edging the walks, blowing every clipping off the driveway before leaving. Beds get weeded and mulched, and the fall cleanup strips the yard down for winter. Then the trucks change over: driveways plowed, paths shoveled, salt on the slick spots while the borough sleeps. Small details, done every single visit, are what make a yard look effortless.