Johnston sits where the Woonasquatucket valley lifts into rocky, wooded hills, glacial stone lying just under thin soil and old field walls still running through the trees toward Snake Den's farmland — ground that decides what a yard can become. Rockhouse Construction works with that ground: patios and hardscaping fitted to the slope, sod and lawn installation laid green over graded earth, decks and railings, lighting systems and Christmas lights strung along winter eaves, and residential construction and remodeling inside the house itself, with dumpster rentals for what the work leaves behind. When a storm banks against the mill-road hills, their snow and ice management clears drives and walks while the pavement is still dark, edges squared, the way out open. There is a plain satisfaction in that kind of result — a patio that sits true come April, a lawn that holds its season, a driveway someone opened at five in the morning so a whole street could go on with its day.