Bathroom & Kitchen Remodel Plumbing in the Las Vegas Valley

Remodel plumbing is the drain, waste, vent and water supply work that a renovation requires. It happens in two stages. Rough-in runs and tests the new piping inside open walls and floors before inspection, and finish work connects the fixtures once tile, cabinets and counters are in. Typical projects include tub-to-shower conversions, moving a sink or toilet, adding a double vanity, relocating a kitchen sink to an island, and adding a wet bar or laundry connection.

Moving a fixture is rarely just moving a pipe. A drain needs proper slope and venting to the existing system, and on the slab-on-grade construction found across most of the valley, relocating a toilet, shower or island sink usually means cutting concrete to reach the drain line below. The supply side has to deliver enough flow for new fixtures, and everything must pass rough-in inspection before drywall goes up. Bringing a plumber in at the design stage avoids layouts that look good on paper but cannot be drained or vented.

The open walls are also a chance to see what you have. Depending on when the home was built, the pipe behind the tile may be galvanized steel, polybutylene, Kitec, copper or PEX, and some of those are worth replacing while access is easy. Southern Nevada adopted the 2024 Uniform Plumbing Code with Southern Nevada Amendments, which took effect in early 2026, and those amendments call for WaterSense-certified toilets, showerheads and lavatory faucets in renovated spaces. Very hard water, about 280 parts per million or roughly 16 grains per gallon, is another reason to choose new valves and cartridges with care.

If the old piping proves to be failing throughout the house, see Whole-House Repipe, and for standalone fixture swaps, see Fixture Installation & Repair. To plan the plumbing for your remodel, call Active Plumbing at (702) 438-3357.

Fixtures relocated without enough drain slope or a proper vent, leading to slow drains and gurgling. Shower pans that leak into the slab or subfloor. Old galvanized, polybutylene or Kitec piping left behind new tile. Supply lines too small for a larger shower or added fixtures. Shutoff valves buried behind cabinets or missing entirely. Unpermitted work that has to be opened up later.

Bathroom and kitchen remodel plumbing typically runs $800 to $3,500 in the Las Vegas Valley. That is a typical valley range, not a quote. Moving drains through a slab, adding new fixtures, and replacing old piping push a job toward the upper end, while a like-for-like layout costs less. Rough-in is usually a short stage of the overall remodel, then inspection timing is set by the building department, and finish work follows once tile and cabinets are in. Active Plumbing gives you a written price before work starts.

Rough-in uses pipe approved by the local plumbing code for each part of the system, typically PEX or copper for water supply and ABS or PVC for drain, waste and vent, with the material confirmed for your home and jurisdiction. Drains are sloped and vented to code, and air admittance valves are used only where the Southern Nevada Amendments allow them. New lines are pressure tested before inspection. Finish work sets WaterSense-certified fixtures where required, with new shutoff valves and supply connectors at each fixture. Remodel supply lines are run in PEX, including Uponor.

Call Active Plumbing at (702) 438-3357 before the layout is final. Have your plans or a sketch of the room, the fixtures you have chosen, and your contractor's schedule ready, and we will review the plumbing side and give you a written price.