You hear the New Croton Dam before you see it, the spillway falling white down the stone, and the streets above the river climb away from that sound in switchbacks. Hilltop Masonry & Landscaping NY works those upper yards — mowing, trimming, edging, and the seasonal cleanups that a hill town's worth of oak leaves makes necessary. Everything here is uphill of something, so the small things matter: no clippings washed down onto the walk, no ragged line where lawn meets stone. What you want is to stand at the bottom of a property and see one continuous, even green going all the way up. Croton-on-Hudson makes you earn that, and then it looks wonderful.