Replace a Leaky Kitchen Faucet
Category: Plumbing ·
Difficulty: Beginner ·
Time: 1.6h ·
Estimated cost: $180
Tools needed
- Adjustable wrench
- Basin wrench
- Bucket
- Old towels
- Flashlight
Materials needed
- Replacement kitchen faucet (1 ea)
- Plumber's putty (1 tub)
- PTFE thread tape (1 roll)
- Braided supply lines (1/2" x 20") (2 ea)
- Silicone caulk (clear) (1 tube)
Execution steps
Shut off water
Close both hot and cold shutoff valves under the sink. Open the faucet to release pressure.
Duration: 5 min
Disconnect supply lines
Place a bucket under the valves. Use a basin wrench to disconnect the hot and cold supply lines from the faucet tailpieces.
Duration: 15 min
Remove old faucet
Loosen mounting nuts under the sink with a basin wrench. Lift the old faucet out from above. Scrape off old putty/caulk from the deck.
Duration: 20 min
Install new faucet body
Drop new faucet into mounting holes. Apply plumber's putty under deck plate if required by manufacturer. Tighten mounting nuts hand-tight, then 1/4 turn with wrench.
Duration: 20 min
Connect supply lines
Wrap PTFE tape around faucet tailpiece threads (3 wraps clockwise). Hand-thread braided lines, then snug 1/4 turn past hand-tight. Do not overtighten.
Duration: 15 min
Open valves and test
Slowly open shutoffs. Run hot and cold for 60 seconds. Check every joint with a paper towel for any moisture.
Duration: 10 min
Caulk and clean up
Run a thin bead of clear silicone around the deck plate base for water resistance. Wipe excess.
Duration: 10 min
Safety first
- Always shut both shutoff valves before disconnecting supply lines.
- Wear safety glasses — old corroded nuts can spray water unexpectedly.
- Never overtighten plastic nuts; they crack and cause leaks within days.
When to hire a pro
If shutoff valves are stuck, corroded, or leak when closed — you'll need a pro to replace the angle stops before any faucet swap.
Back to all DIY Guides ·
AyX Estimator — Take the guess out of construction.