You're rinsing dishes after dinner when you notice it: a thin, steady drip coming from the faucet. You've tightened the handle. You've wiggled it. You've even talked to it. Still drips. Maybe the finish is worn off in spots, or the water pressure has quietly gotten worse over the last year. Maybe you just don't like looking at it anymore — and honestly, that's a fine reason.
Replacing a kitchen faucet is one of those projects that looks intimidating from across the room but turns out to be surprisingly manageable once you get your head under the sink. Most homeowners can finish the whole job in under two hours with basic tools. No license, no torch, no drama. This guide walks you through every step: picking the right faucet, gathering tools, pulling the old one, installing the new one, and handling the hiccups that sometimes show up afterward.
Signs It's Time to Replace Your Kitchen Faucet
A faucet doesn't usually fail overnight. It wears down slowly, and most of us adjust to the decline until something finally pushes us over the edge. Here's what to watch for.
The Drip That Won't Quit
A faucet that keeps dripping after you replace washers or cartridges is telling you something. Inside every faucet, seals and valves wear down over years of daily use. When repairs stop holding, you're pouring money down the drain — literally. Even a slow drip adds up on your water bill over the course of a year.
Corrosion, Rust, or a Finish That's Seen Better Days
Mineral buildup around the base, a finish that's flaking or discolored, rust spots that won't scrub off — these are cosmetic at first, but corrosion often reaches the working parts too. If your faucet looks rough on the outside, the inside probably isn't doing great either.
Low Water Pressure at the Kitchen Sink
Sometimes low pressure is just a clogged aerator (unscrew the tip of the spout and check — it's a thirty-second job). But if the aerator is clean and pressure is still weak, worn internal valves may be the culprit. A new faucet restores full, even flow.
Hard-to-Turn Handles or a Wobbly Spout
Stiff handles, handles that turn too far, a spout that rocks on its base — these all point to internal wear. Lubricating or re-tightening can help temporarily, but a faucet that's loose at its core is living on borrowed time.
You Simply Want an Upgrade
Maybe you're remodeling. Maybe you saw your neighbor's gorgeous gooseneck faucet and felt a pang of faucet envy. There's no shame in replacing a working faucet just because you want something better — a pull-down sprayer, touchless operation, or a finish that actually matches the rest of your kitchen.
Choosing the Right Faucet
Standing in the faucet aisle can be overwhelming. There are dozens of options, and the differences matter. Let's break down the decisions you'll actually need to make.
Check Your Sink's Hole Configuration First
This is the single most important thing to check before you shop. Look at your sink or countertop:
- One hole: A single-hole faucet (usually a one-handle design). Simple and clean.
- Three holes, 4 inches apart (center set): Needs a 4-inch centerset faucet or a single-hole faucet with a deck plate that covers the extra holes.
- Three holes, 8 inches apart (widespread): You'll need a faucet designed for widespread spacing, or a single-hole faucet plus a deck plate to cover the outer holes.
- Four holes: The fourth is usually for a side sprayer or a soap dispenser. If you're going from a side sprayer to a pull-down faucet, you can fill the extra hole with a soap dispenser or a blanking cover.
The easiest path: count the holes and measure the spacing before you leave the house. Snap a photo on your phone too. It saves a lot of second-guessing in the store.
Deck-Mount vs. Wall-Mount
Almost every residential kitchen uses a deck-mount faucet — it sits on the sink deck or the countertop behind the sink. Wall-mount faucets attach to the wall above the sink and are usually part of a full remodel. If your current faucet is deck-mounted, buy deck-mounted. Don't make this harder than it needs to be.
Spout Height and Reach
A high-arc (gooseneck) spout gives you room to fill tall pots and stack dishes underneath. A low-arc spout is more compact and splash-free but less forgiving with big cookware. Reach matters too: the spout should extend far enough that the water stream lands near the center of the sink bowl, not splashing off the back edge.
Pull-Down vs. Pull-Out Sprayers
Both give you a hose you can aim around the sink, but they feel different in use:
- Pull-down: The spray head pulls straight down from a tall spout. Best for deep sinks and filling large pots. The high arc means the hose has plenty of slack.
- Pull-out: The head pulls out toward you from a shorter spout. Easier to maneuver for some people, and the lower profile can reduce splashing.
Either way, look for a spray head that toggles between a steady stream and a spray mode, and a hose that's long enough to reach the corners of your sink without straining.
Handles: One or Two?
A single-handle faucet lets you adjust temperature and flow with one motion — quick and convenient when your hands are messy. A two-handle faucet gives you finer temperature control and a more traditional look. There's no functional winner here; it's about what feels natural to you.
Finish: Looks Plus Maintenance
Chrome is affordable and easy to clean but shows water spots. Brushed or satin nickel hides fingerprints and matches most appliances. Matte black makes a bold statement but can show soap scum if your water is hard. Bronze and brass add warmth to traditional kitchens. Pick the finish that matches your cabinet hardware and appliances — cohesion makes a kitchen look intentional.
One Quiet Feature Worth Caring About
Look for a faucet with a ceramic disc cartridge if you can. It's the internal valve mechanism that controls water flow, and ceramic discs last far longer than old-style rubber washers — often for the life of the faucet. Most mid-range faucets include them now, and it's one of the few specs worth checking on the box.
Tools and Materials You'll Need
Gather everything before you start. Nothing kills momentum like crawling out from under the sink to hunt for a missing wrench.
Tools
- Basin wrench: The hero of this job. Its long shaft and pivoting jaw reach the mounting nuts in the cramped space behind the sink where a normal wrench can't fit.
- Adjustable wrench: For supply line connections.
- Channel-lock pliers: Backup for stubborn nuts and fittings.
- Bucket and old towels: Water will come out of places you don't expect. Plan for it.
- Flashlight or headlamp: Under-sink cabinets are caves. Light it up.
- Putty knife or scraper: For removing old plumber's putty and sealant.
- Sponge and household cleaner: To clean the sink surface before installing the new faucet.
Materials
- The new faucet: Obviously. Keep the box and instructions nearby.
- New flexible supply lines (if not included): Braided stainless steel supply lines in the right length. Replacing them is cheap insurance — old supply lines are a leading cause of under-sink leaks.
- Plumber's putty or the manufacturer's gasket: Most new faucets come with a rubber or plastic gasket for the base. If yours doesn't, or you prefer it, plumber's putty works — but skip putty on stone or composite sinks unless the label says it's safe, since the oils can stain.
- Thread sealant tape (Teflon tape): Wrap it clockwise around threaded connections to prevent weeping.
- A small container or bag: For the old screws, nuts, and washers you'll remove. Future-you will thank present-you.
Before You Touch Anything: Shut Off the Water
This step is non-negotiable. Find the shut-off valves under the sink — there should be two, one for hot and one for cold, on the water lines coming up from the floor or wall. Turn both clockwise until they stop.
Then turn on the old faucet and let it run until the water stops completely. This drains residual pressure from the lines. Give it a minute. If the handles have been sitting untouched for a decade, they might be stiff — a little patience and a firm grip usually does it.
What if there are no shut-off valves? Some older homes don't have individual valves under the sink. In that case, shut off the main water supply to the house (usually near the water meter or where the main line enters). The job is the same after that — just remember nobody in the house gets water until you're done.
Clear out everything stored under the sink and lay down towels. Slide a bucket under the supply connections. You're going to get wet at least a little — accept it, prepare for it, and it becomes a non-event.
Step-by-Step: Removing the Old Faucet
Step 1: Disconnect the Supply Lines
Place your bucket directly under the supply line connections. Using your adjustable wrench, loosen the nuts where the flexible supply lines meet the shut-off valves. Expect a cup or so of water to drain out — that's normal; it's just water trapped in the lines. Let it drain into the bucket, then unscrew the other ends of the supply lines from the faucet's tailpieces.
Step 2: Disconnect the Sprayer Hose (If There Is One)
If your old faucet has a side sprayer or a pull-down head, trace the hose down from the faucet body and disconnect it. Some have quick-connect fittings (squeeze the tabs and pull), others are threaded. Note how it comes apart — the new faucet will connect in a similar way.
Step 3: Remove the Mounting Hardware
This is where the basin wrench earns its keep. Lie on your back, shine your light up behind the sink, and locate the mounting nuts holding the faucet to the sink deck. They may be metal nuts on threaded shanks, or a large plastic locking nut. Fit the basin wrench onto the nut and turn counterclockwise. Older nuts can be corroded and stubborn — a spray of penetrating oil and a few minutes of waiting works wonders.
Remove any washers, mounting plates, or brackets as they come free. Drop all the hardware into your container.
Step 4: Lift Out the Old Faucet
With the mounting hardware off, go back topside and lift the faucet straight up and out. If it's stuck, it's usually old putty or sealant gluing it down. Work the putty knife gently under the base and rock the faucet side to side until it breaks free. Don't force it — slow pressure beats brute force when you're dealing with a sink you plan to keep.
Step 5: Clean the Mounting Surface
Scrape away all old putty, sealant, and grime from the sink deck. Get it as clean as you can — the new faucet needs a smooth, flat surface to seal against. A sponge, some cleaner, and a little elbow grease will do it. Let the surface dry before moving on.
Step-by-Step: Installing the New Faucet
Step 6: Read the Instructions (Really)
I know. But every faucet model has its own quirks — gasket order, which line goes where, how the sprayer hose connects. Five minutes with the manual saves thirty minutes of head-scratching under the sink.
Step 7: Apply the Gasket or Putty
If your faucet came with a rubber or foam gasket for the base, place it on the sink deck around the holes (or onto the faucet base itself, per the instructions). If you're using plumber's putty instead, roll a rope of putty about the thickness of a pencil, press it around the base of the faucet, and seat the faucet onto the deck. The putty will squeeze out around the edges — wipe the excess away with a damp cloth. As noted earlier, skip putty on stone, marble, or composite sinks unless the product specifically says it's stain-free; use the gasket or a silicone sealant rated for the surface.
Step 8: Feed the Lines Through and Seat the Faucet
From above the sink, feed the faucet's tailpieces and any hoses down through the mounting holes. Set the faucet into position, checking that it's straight and centered. A quick eyeball from the front of the sink is enough — small angles are surprisingly noticeable once the handles go on.
Step 9: Secure the Mounting Hardware from Below
Back under the sink. Slide the washers, mounting plate, and nuts onto the tailpieces in the order the instructions specify, then tighten with the basin wrench. Here's the key word: snug. Tighten firmly, but don't crank with all your strength. Over-tightening can crack the sink, warp the gasket, or damage the faucet's finish. The faucet should feel rock-solid with no rocking — once it does, stop.
Step 10: Connect the New Supply Lines
Connect the braided supply lines from the shut-off valves to the faucet tailpieces. Hot goes to hot (usually marked red, or the left side), cold to cold. Hand-tighten the connections first, then give them about a quarter-turn more with the wrench. Wrap thread sealant tape clockwise around any male threads before connecting — two or three wraps is plenty.
If your faucet has a pull-down sprayer, connect the sprayer hose now, usually with a quick-connect fitting that clicks into place. Give it a gentle tug to confirm it's locked. Route the hose so it hangs freely with a smooth loop — if the hose snags on pipes or the disposal under the sink, the spray head won't retract properly later.
Step 11: Turn the Water Back On — Slowly
Open the shut-off valves slowly, about halfway at first. Go topside and check for leaks at the faucet base, the handles, and the spout. Then go back underneath and run your fingers along every connection — supply lines, tailpieces, sprayer hose. Dry fingers find weeping connections that eyes miss. If everything is dry, open the valves fully.
The First Test Run
Remove the aerator from the tip of the spout before you run water for the first time. Manufacturing debris and bits of sealant can be sitting in the lines, and the aerator's fine screen will catch all of it — you'd rather flush it out than clog the screen immediately. Run both hot and cold at full blast for a minute or two, cycling through stream and spray modes on the spray head. Then screw the aerator back on and check the flow.
While the water runs, watch the connections under the sink one more time. New connections sometimes need a few minutes under pressure to reveal a slow weep. Check again after fifteen minutes, and once more an hour later. Most leaks, if they're going to appear, show up within the first hour.
Troubleshooting Common Problems
Even a careful install can throw a curveball. Here's how to handle the usual suspects.
Water Seeping from Around the Base
A leak at the base of the faucet almost always means the seal between the faucet and the sink deck isn't complete. First, check that the mounting nuts underneath are snug — a faucet that can rock even slightly will break its seal. If the nuts are tight, the gasket may be seated crooked or the putty ring may be too thin. You may need to lift the faucet and re-seat it. Annoying, but fixable.
A Supply Line Connection That's Weeping
A slow drip where a supply line meets a valve or tailpiece usually means the connection isn't quite tight enough, or the thread tape is missing or wrapped the wrong direction. Tighten the nut another quarter-turn. If it still weeps, disconnect it, re-wrap the threads with fresh tape (clockwise, looking at the end of the fitting), and reconnect. The rubber washer inside the supply line fitting can also be damaged — if re-taping doesn't work, replace the supply line. They're inexpensive.
Low Water Pressure After Installation
First suspect: debris in the aerator or the spray head screen. Unscrew them and rinse. Second suspect: a kinked supply line or a pinched sprayer hose under the sink — straighten the routing. Third suspect: the shut-off valves aren't fully open. Work through those three and pressure almost always returns to normal. If hot is weak but cold is fine (or vice versa), check that individual shut-off valve first.
The Pull-Down Sprayer Won't Retract
This is a routing problem, not a faucet problem. The hose needs a clear, unobstructed loop under the sink so the weight on the hose can pull the spray head back down. If the hose is catching on the garbage disposal, pipes, or stored cleaning bottles, rearrange things until the hose hangs freely. Some faucets include a hose weight that clips onto the hose — make sure it's installed and positioned where the instructions show.
Hot and Cold Are Reversed
You connected the supply lines to the wrong sides. It's a five-minute fix: shut the water off, swap the two supply lines at the shut-off valves, and turn the water back on. No judgment — it happens to professionals too.
A Handle That Feels Stiff or Loose
Most handles attach to the cartridge with a small set screw. If a handle wobbles, find the set screw (often hidden under a decorative cap or on the underside of the handle) and snug it. If a handle is stiff, the cartridge may just need to break in — cycle it a few dozen times. Persistent stiffness out of the box is worth a call to the faucet manufacturer's support line, since it's covered under warranty.
Cleaning Up and Finishing Touches
Wipe down the sink and the area around the new faucet. Wipe the faucet itself with a soft, damp cloth — skip abrasive cleaners and scrub pads, which can dull the finish on day one. Put your under-sink storage back, keeping the area around the supply lines and sprayer hose clear.
Keep the instruction manual and any warranty paperwork somewhere you'll find it later — a kitchen drawer or a folder with other appliance manuals. Register the warranty online if the manufacturer offers it; it takes two minutes and can save you real money if a cartridge fails years from now.
One more thing: take a "before" photo of the old faucet if you haven't already, and an "after" photo now. If you ever sell the house, a record of upgrades is a nice touch. And if a friend asks how hard it was, you'll have proof.
When You Should Actually Call a Plumber
Doing it yourself doesn't mean doing everything yourself. Call a professional if:
- The shut-off valves are frozen or broken. If a valve won't turn or snaps off, stop. Replacing a valve involves the main water supply, and a mistake floods the house.
- You find corroded or damaged pipes under the sink. Green, flaking, or soft-feeling copper, or rusted-through supply stubs, are bigger than a faucet job.
- There's no way to shut off the water. If there's no main shut-off you can access, this job can't start safely.
- The sink or countertop is damaged. Cracked porcelain, a rotting countertop around the faucet holes, or a sink that's pulling away from the counter all need professional attention first.
- You've tried the troubleshooting steps and something still leaks. There's no shame in it. A plumber will sort it out in minutes, and you'll still have saved most of the cost by doing the bulk of the work yourself.
The Takeaway
Here's the honest truth about replacing a kitchen faucet: the hardest part is psychological. Lying on your back under a sink with a wrench feels like plumber territory, but the steps themselves are simple — shut off the water, disconnect the old, connect the new, check for leaks. No soldering, no permits, no specialized training.
Two hours, basic tools, and a little patience, and you've got a faucet that works better, looks better, and will probably outlast the one it replaced. And the next time something drips in your kitchen, you'll know exactly what's going on down there — because you put it there yourself.