How to Replace Your Kitchen Faucet

Faucets are the most used mechanical component in any kitchen, and they eventually reach their breaking point. Whether you are dealing with a persistent drip or simply want the utility of a modern pull-down spray head, the replacement process is a rite of passage for any homeowner. A job done well results in a leak-free seal and a faucet that feels solid to the touch without any wobble. Working under the sink is tight and awkward, so lighting and preparation are your best allies. By clearing out the cabinet beforehand and having your tools within arm's reach, you eliminate the frustration of fumbling in the dark. Focus on a clean seal and firm connections, and you will ensure years of reliable performance from your new fixture.

  1. Kill the Water Flow First. Locate the shut-off valves under the sink and turn them clockwise until they stop. Open the faucet handles to relieve any residual water pressure in the lines.
  2. Disconnect Old Supply Lines. Place a small bucket under the valves to catch remaining water. Use an adjustable wrench to loosen the supply nuts connecting the lines to the valves.
  3. Extract the Old Faucet. Use a basin wrench to reach the mounting nuts securing the faucet to the underside of the sink deck. Unscrew these nuts and pull the old unit out from above.
  4. Clean Your Work Surface. Scrub the sink deck where the old faucet sat to remove lime, gunk, and old putty residue. A clean surface is essential for a watertight seal on the new gasket.
  5. Position New Faucet Precisely. Feed the new faucet hoses through the mounting hole and center the base plate. Ensure the gasket or O-ring is seated correctly between the faucet base and the sink.
  6. Tighten Mounting Hardware. Thread the mounting nuts and washers onto the faucet shanks from underneath the sink. Tighten them firmly, checking the top to ensure the faucet remains straight.
  7. Reattach Supply Lines. Attach the hot and cold supply lines to their respective valves. Use two wrenches—one to hold the valve steady and one to tighten the nut—to prevent torque damage to the pipes.
  8. Verify Zero Leaks. Turn on the supply valves slowly and check all connections for drips. Turn on the faucet to flush the lines and test the pull-down sprayer functionality.