Turn off the water supply valves under the sink by rotating them clockwise until fully closed.
Open the existing faucet to relieve pressure and drain any remaining water.
Place a bucket under the sink to catch any water and disconnect the supply lines using an adjustable wrench.
Use a basin wrench to loosen and remove the mounting nuts securing the old faucet to the sink.
Lift the old faucet out from the top of the sink and set it aside.
Clean the sink surface thoroughly to remove old putty, grime, or debris.
Apply plumber's putty or silicone sealant to the base of the new faucet if recommended by the manufacturer.
Insert the new faucet through the mounting holes in the sink.
Secure the faucet from underneath using the provided mounting hardware and tighten with a basin wrench.
Attach the hot and cold water supply lines to the corresponding faucet inlets and tighten with an adjustable wrench.
Ensure all connections are snug but avoid over-tightening to prevent damage.
Turn the water supply valves back on slowly and check for any leaks.
Open the new faucet to flush out any debris and ensure proper water flow.
Inspect all connections under the sink for drips or leaks while the faucet is running.
Tighten any leaking connections slightly with a wrench if necessary.
Wipe down the faucet and sink area to remove any excess sealant or water.
Ensure the faucet handles are aligned and functioning correctly.
Dispose of the old faucet and packaging materials responsibly.
Store tools and clean up the work area.
Test hot and cold water to confirm correct installation.