Turn off the water supply valves under the sink to prevent flooding.
Open the faucet to release any remaining water pressure in the lines.
Place a bucket or towel under the sink to catch any drips or spills.
Use a screwdriver to remove the screw holding the faucet handle in place.
Gently pull off the faucet handle to expose the valve assembly.
Use a wrench or basin wrench to loosen and remove the valve or cartridge.
Inspect the valve or cartridge for cracks, corrosion, or worn washers.
Replace any damaged washers or install a new cartridge as needed.
Clean the valve seat and surrounding area with a cloth to remove debris.
Wrap plumber's tape around the threads of the valve to ensure a tight seal.
Insert the new or repaired valve back into the faucet body.
Tighten the valve securely using a wrench, but avoid over-tightening.
Reattach the faucet handle and secure it with the screw you removed earlier.
Ensure all parts are aligned properly and seated firmly in place.
Turn the water supply valves back on slowly to avoid sudden pressure.
Check the faucet for proper operation and ensure water flows smoothly.
Inspect the area under the sink for any signs of dripping or leaks.
Tighten connections slightly if minor leaks are detected.
Wipe down the area and remove tools and materials.
Monitor the sink over the next day to ensure the leak is fully resolved.
