Bathroom remodeling in South Carolina is moisture with a coastal accent. Fans that exhaust into attics soften decks from the Upstate to the sea. Raised Lowcountry houses show their joists if you look up from the crawl, and those joists tell the truth about a slow tub leak. Midlands slabs hide a failed pan until the baseboard swells. A short Upstate freeze can still burst a supply line in an exterior wall that a Charleston bath never worries about. Say where the house sits.
Keep the drain or move the room. Those are different projects. A tub swap in a small ranch bath is not a new shower that relocates the valve and widens the door. Ask what waterproofs the walls. Tile is a finish. The membrane under it is the work. Ask who sets a valve that will not scald when another fixture runs. In a historic coastal bath, the floor may already slope for reasons you should not discover after demolition.
Press the floor with your foot before you choose finishes. Soft wood means the subfloor is in the scope. On a slab, the give may be a hollow mortar bed. Ask for a fan that reaches the outside, ducted, with a damper that actually closes. A window painted shut in a summer this humid is not ventilation. Salt air near the water will attack an uncoated metal frame around that new glass. Say if the bath faces the marsh.
Grab bars need blocking in the framing, not a wing and a hollow wall. A curbless shower may mean lowering the floor, which is a different cut in a raised house than on a slab. Write the scope as a fixture swap or a layout change, and write the tile and fixture choices so they do not drift after the old tub is gone. Stacked rooms in a narrow coastal house leak downward. Name the room below.
Say the town, say tub or shower, and say if the layout stays put. Bathroom remodeling in South Carolina should talk about wet wood before it talks about the finish. Call the number on this page.