Turn off the water supply valves to the bathtub (hot and cold).
Open the bathtub faucet handles to relieve pressure.
Protect the tub surface with a towel or blanket.
Remove the old faucet handle(s) and trim:
Locate set screws or retaining clips.
Remove handles, escutcheon/trim plate, and any mounting hardware.
Disconnect the supply lines from the shutoff valves or existing plumbing connections.
Remove the old faucet body/spout (as applicable) and clean the mounting area.
Inspect and replace damaged supply lines, shutoff valves, or any worn seals.
Verify rough-in dimensions match the new faucet:
Confirm spacing, stem types (if applicable), and pipe sizes.
Install the new faucet body:
Apply plumber’s tape or pipe sealant to threaded connections (as required by the faucet instructions).
Seat O-rings/gaskets where required.
Tighten mounting hardware securely.
Connect hot and cold supply lines to the correct inlet ports:
Ensure hot is connected to the hot side and cold to the cold side.
Tighten connections firmly without overtightening.
If the system uses a diverter/transfer valve, install and connect it per the manufacturer instructions.
Install the spout and/or trim:
Align spout correctly over the tub opening.
Secure trim plate/escutcheon and tighten set screws.
Install handles:
Attach handles to stems.
Set handle positions to match hot/cold orientation.
Tighten set screws.
Check for leaks:
Turn water supply valves back on.
Run hot and cold water and inspect all connections and around the trim.
Adjust temperature/handle limits (if equipped):
Set stops or cartridge limits to achieve desired hot/cold range.
Test operation:
Verify spout flow and any diverter function (hand shower vs tub spout, if included).
Re-check tightness after the first test run.
Clean up and remove protective covering.