Full Home Remodeling in Hawthorne With Water Kept in Check

How a Hawthorne whole-house remodel handles water: sink base liners, shutoff valves, leak sensors, tested piping and roof runoff led clear of the footing.

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A slow drip under a kitchen sink can soak a cabinet floor and the subfloor beneath before anyone opens the door, so a Hawthorne remodel deals with it while the cabinet is still a drawing. A sealed liner goes in the sink base. Quarter-turn stops and braided supply hoses replace old valves. A leak sensor on the floor can be wired to a valve at the main that shuts the water off when it gets wet.

Inside the walls

New drain and supply piping is pressure tested before any wall closes, and the test runs long enough for a slow seep to show. Behind the tub and shower, a waterproof membrane or bonded sheet goes over the backer board, with seams lapped and corners preformed. The washer stands in a drain pan piped to a drain where the layout allows. A water heater set where a leak could damage the floor or a room below gets a pan with its own discharge line. Each of these is simple to add with the walls open and a real job to retrofit later.

Outside, around the foundation

Rain that lands on the roof has to leave the house without pooling beside the footing. Gutters are checked for slope, and downspouts discharge onto splash blocks or into a buried pipe that daylights well clear of the house. Soil next to the walls should fall away from the house, and planters built up against stucco are cut back so the weep screed at the base stays clear. Any new door or window gets a sloped sill pan and flashing tape lapped from the bottom up. Where a patio door opens from the kitchen, its threshold sits above the outdoor slab with a step down.

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