Some of this work is genuinely simple. A vanity replaced with one the same width, in the same spot, using the existing supply and drain locations, is a contained job. A new toilet on the existing flange, a new faucet, a new light and mirror: all of that stays inside the room, leaves the walls closed, and finishes without a single inspection or a patch of new drywall.
The line gets crossed the moment a fixture moves. A wider vanity that shifts the sink centerline means relocating supply stubs and the drain inside the wall. A toilet that moves even slightly means opening the floor and re-running drain and vent so the fall and venting still work. Figuring out which side of that line your project sits on is the most useful thing you can do before you start collecting quotes.
The cleanest way to think about it is work that stays in the room versus work that goes into the wall or the floor. Swapping fixtures on existing rough plumbing keeps the drywall closed and the trade list short. Moving a sink centerline adds plumbing, patching, and paint. Moving a toilet adds all of that plus opening the floor. Fixture level then swings things on its own, since a vanity and top can vary enormously with no change in labor whatsoever. And if this is the only bathroom in the house, every stage with the water shut off carries a scheduling cost too.
Sometimes, and it is worth asking directly rather than assuming. The complication is responsibility: if a supply connection under a homeowner-installed cabinet weeps behind a finished wall, whose problem it becomes is genuinely unclear. Contractors differ on this, and it is much better settled before the work than discovered after it.
Usually not, but clearance is the constraint. There has to be room between the toilet and the cabinet, and the door has to clear both. A slightly narrower vanity that leaves the plumbing untouched is often the better trade, and your contractor can confirm the clearance requirements that apply in your area.
New fixtures rarely solve it on their own. In older Utah homes, weak pressure at one bathroom often traces back to galvanized supply lines that have corroded closed from the inside. If a wall is coming open anyway, that is the moment to replace the run rather than hoping a new faucet hides the symptom.
It is a wall job rather than a countertop job. The valve body sits inside the wall, so the wall is open during rough plumbing and the height and projection are locked in before tile goes on. Excellent when planned early, painful to reconsider once the tile is set and grouted.
Down to studs and subfloor, then back up in the right order. This is the version where demo tells you things: soft plywood at the toilet flange, galvanized supply lines, a vent fan that never moved much air.
Learn more →The most common request we hear, and rarely as simple as pulling a tub out. The drain sits in a different place, the curb and pan have to be built, and the walls behind them get rebuilt too.
Learn more →Tile is what you see. The waterproofing layer under it is what decides whether the wall stays dry, and it is the easiest place on the job to save a few hours and cause a failure nobody finds for years.
Learn more →Curbless entries, blocking in the walls for grab bars, room to turn around, and a shower you can walk into. Easier to plan while the walls are open than to retrofit after something changes in your household.
Learn more →Which bathroom it is, and whether anything needs to move. That is enough to begin.
