Bathroom remodeling in Nevada meets hard water everywhere and freeze only in the north. Scale locks valves and spots glass from the southern cities through many northern wells. Southern houses are usually on slabs, so a drain that moves is a concrete cut. Northern houses may be on a crawl space or a basement, which makes the drain easier and the freeze risk more serious if the new shower lands on an exterior wall. Say the region before you pick a tile.
Say the scope in one sentence. Tub for tub, tub for shower, vanity only, or a layout that moves the toilet. If the layout moves, say so first. Ask what waterproofing sits behind the surround. Ask whether the valve is new and whether a softener already feeds the room. Hard water will haze the new glass either way, and pretending otherwise is how a fresh bath looks old. Ask who patches the wall. Block and stucco in the south patch differently from drywall and wood in the north.
Ventilation is the quiet item. Southern houses are dry most of the year and then take a rare humid storm. Northern houses stay closed all winter, and a fan that does not reach the outdoors leaves moisture in a tight room. Ask where the duct ends. Ask about a window in the wet wall, especially on a west wall in the south where the sun bakes the surround. Accessibility, if you need it, means blocking for a bar and a curb you can step through, decided before the board goes on.
Older southern tract baths are small and scaled. Older northern baths are small and cold at the outside wall. Those are not the same remodel. Name the town, the floor, and whether the pipes have ever frozen. Call the number on this page.