Quick Answer
To replace a bathroom faucet, turn off the water, disconnect the supply lines, remove the old faucet and mounting nuts, install the new faucet, reconnect the lines, and test for leaks.
Tools You Need
Basin wrench, adjustable wrench, plumber’s tape, a bucket, and a towel for water spills.
Step 1: Turn Off the Water
Close the hot and cold shut-off valves, then open the old faucet to release pressure.
Step 2: Remove the Old Faucet
Disconnect the supply lines, loosen the mounting nuts under the sink, and lift the old faucet out. Scrape away old putty.
Step 3: Install the New Faucet
Set the new faucet through the holes, position the gasket or apply plumber’s putty, and secure the mounting nuts from below.
Step 4: Connect and Test
Reconnect the supply lines, turn the water on slowly, and check every connection and the spout for leaks.
Frequently Asked Questions
Can I replace a bathroom faucet myself?
Yes. A same-size replacement is a straightforward DIY job that usually takes 30 to 60 minutes.
Do I need to replace the supply lines too?
It is recommended if the old lines are corroded or worn. New braided supply lines are inexpensive insurance against leaks.
What if my new faucet does not fit the old holes?
Choose a faucet that matches your hole count and spacing, or use a deck plate to cover unused holes when switching to a single-hole faucet.
WOWOW Faucets