Dripping Faucet Fix: Stop the Drip for Good

Why Faucets Drip

Every faucet controls water with some kind of seal: a rubber washer pressed against a seat, a cartridge with internal ports, or ceramic discs sliding against each other. Every time you open and close the tap, that seal moves, compresses, and wears a little more. Hard water accelerates the wear by depositing minerals on seats and seals, and California's mineral-rich water means faucet parts wear faster here than in soft-water regions. High water pressure makes it worse by forcing water past seals that would otherwise still hold.

The most common causes, in order of likelihood, are a worn-out washer or cartridge, a corroded valve seat, a damaged O-ring, and loose or worn internal parts. A drip from the spout usually means the seal that shuts off water flow has failed. A leak from the handle or the base of the faucet usually means an O-ring or a packing seal has failed. Water pooling under the sink points to a supply-line or drain connection problem rather than the faucet itself, and that distinction matters because the fix is completely different. Before you buy parts, spend two minutes watching where the water actually comes from: spout, handle, base, or underneath. That observation narrows the repair immediately.

Identify Your Faucet Type First

Buying the right parts starts with knowing which of the four common faucet designs you have. The repair steps differ for each, and using the wrong procedure wastes an afternoon.

Compression faucets have separate hot and cold handles, and you feel the handle tighten as you close it. They use a rubber washer on the end of a stem that presses against a valve seat. These are the oldest design, the most prone to dripping, and also the simplest to fix: a new washer usually solves it. You will find them in older California homes, especially in bathrooms that have never been remodeled.

Ball faucets have a single handle that moves in all directions over a rounded ball. They were common in kitchens from the 1970s through the 1990s. Inside, a slotted metal or plastic ball controls the mix of hot and cold, with spring-loaded rubber seats pressing against it. Ball faucets have many small parts, so a full repair kit is usually smarter than replacing one piece at a time.

Cartridge faucets also use a single handle, but the handle moves up and down for flow and side to side for temperature, with a smoother, more controlled feel than a ball faucet. The cartridge is a self-contained unit that slides in and out of the valve body. Cartridge faucets are the most common modern design, and they are the easiest to repair: pull the old cartridge, drop in the new one, done. If you have a newer kitchen or bathroom faucet, it is probably a cartridge faucet.

Ceramic disc faucets have a single lever or two handles and feel exceptionally smooth, with a short quarter-turn or half-turn from off to full flow. Inside, two ceramic discs slide against each other to control flow. Ceramic discs are extremely durable and rarely fail, but when they do, the discs or their seals need replacement, and the parts are brand-specific. These faucets are common in higher-end installations and newer remodels.

If you are unsure, remove the handle and look inside, or take a photo of the faucet and the handle to a plumbing supply store. Brand and model markings are often stamped under the handle or on the back of the spout. A fixture installation professional can also identify the type in seconds if you would rather not take the faucet apart just to look.

Tools and Parts You Will Need

Most faucet repairs need only basic tools, and gathering them before you start avoids a mid-job trip to the store with the water still off.

• Adjustable wrench and a set of Allen keys for handle set screws
• Phillips and flat-head screwdrivers
• Pliers, preferably with taped jaws to protect chrome finishes
• Replacement washers, O-rings, or cartridge matched to your faucet brand and model
• Plumber's grease for lubricating O-rings and cartridge seals
• White vinegar or a descaling solution for cleaning mineral deposits off seats and aerators
• Towels and a small container to catch water and hold small parts in order

Before touching anything, shut off the water supply to the faucet. Most sinks have shutoff valves underneath, one for hot and one for cold. Turn both clockwise until they stop, then open the faucet to drain the remaining water and confirm the flow has stopped. If the under-sink valves are seized or missing, which is common in older California homes, shut off the main water supply to the house. Plug the drain before you start, because faucet screws and springs are small, round, and perfectly shaped for disappearing down a drain. Lay the parts out in the order you removed them, or take a photo at each step, so reassembly is straightforward.

Fixing a Compression Faucet Drip

Compression faucets drip when the rubber washer at the bottom of the stem wears flat, cracks, or hardens. Start by removing the handle, usually held by a screw under a decorative cap, then unscrew the stem assembly with a wrench. At the bottom of the stem you will find the washer, held by a small brass screw. Remove the screw, replace the washer with an exact match in size and thickness, and reassemble. A washer that is too thick will not let the handle close properly, and one that is too thin will not seal, so bring the old washer to the store for comparison.

While the stem is out, inspect the valve seat inside the faucet body. Run a fingertip around it: if it feels rough, pitted, or grooved, the new washer will wear out quickly against that rough surface. A valve seat wrench and a seat dresser can smooth minor damage, and a replacement seat can be threaded in if the seat is removable. If the seat is badly corroded and cannot be dressed smooth, the faucet body itself is worn out, and replacement is the sensible move. This is also the moment to clean mineral deposits from the aerator: unscrew it, soak it in vinegar, scrub it with an old toothbrush, and reinstall it. You will often find the flow improves noticeably after this simple cleaning.

Fixing Ball, Cartridge, and Ceramic Disc Faucets

Ball faucet repair means replacing the seats, springs, and seals as a set. Remove the handle, loosen the cap, and lift out the ball. Underneath you will find two small rubber seats with springs behind them. Replace both seats and springs, replace the O-rings on the faucet body, lubricate everything with plumber's grease, and reassemble. Ball faucet repair kits include all of these parts for a few dollars, and replacing the whole set at once is far more reliable than swapping one worn piece and leaving its equally old neighbors in place.

Cartridge faucet repair is the simplest of all. Remove the handle, remove the retaining nut or clip, and pull the cartridge straight out. Note the orientation carefully, because cartridges only work one way, and installing one backwards reverses hot and cold. Take the old cartridge to the store for an exact match, since cartridges are brand-specific and look-alikes that do not quite fit are a common frustration. Lubricate the new cartridge's O-rings, slide it in, replace the clip or nut, and test. If the drip stops and the handle moves smoothly, you are done. If the cartridge was seized in place, a cartridge puller tool, available at most supply stores, will remove it without damaging the valve body.

Ceramic disc repair starts the same way: remove the handle and the escutcheon cap, then lift out the cylinder containing the discs. Inspect the discs for cracks or chips and the seals underneath for wear. Replacement disc cartridges are sold as a unit for most brands, which is simpler than replacing individual discs. Clean any mineral deposits from the cylinder housing before installing the new unit, and make sure the seals seat flat. Ceramic disc faucets that drip from the base rather than the spout usually have a failed base seal, which is a separate, inexpensive part worth replacing while the faucet is already apart.

When to Replace the Faucet Instead

Repair is usually the right call, but not always. Replace the faucet when the body is cracked or heavily corroded, when parts are discontinued and no longer available, when the finish is failing and the faucet looks worse than the room around it, or when you have already repaired the same faucet twice and it keeps dripping. A faucet that needs a third repair in a year is telling you the valve body or seats are worn beyond what new seals can fix.

Replacement is also worth considering during a kitchen or bathroom remodel, when the sink or countertop is already being changed and the incremental cost of a new faucet is small. New faucets bring practical improvements too: modern cartridges last longer, water-efficient aerators cut flow without hurting performance, and single-lever designs are easier for children and older family members to use. A new faucet installation also lets a plumber replace old supply lines and seized shutoff valves at the same time, which removes two common future failure points in one visit.

Cost helps frame the decision. A do-it-yourself washer or cartridge repair costs $5 to $50 in parts. A professional cartridge replacement typically runs $150 to $350, including the part and labor. A full faucet replacement, including a mid-range new faucet, usually lands between $300 and $700 for a standard kitchen or bathroom faucet, and higher for specialty or wall-mounted models. Compare that with the cost of the wasted water and the risk of a drip escalating into a leak inside a cabinet, and prompt repair almost always pays for itself.

Dripping Faucet Costs at a Glance

The numbers vary with faucet brand, since brand-specific cartridges range from under $20 to over $100, and with access, since a faucet in a tight pedestal sink or a corner kitchen takes longer to service. If a plumber quotes a repair, ask whether the quote includes the cartridge or washer, because some quotes list labor only and the part adds a surprise at the end. A clear quote lists parts and labor separately.

Preventing the Next Drip

A few habits extend the life of any faucet repair. Do not overtighten handles: cranking a compression faucet shut grinds the washer against the seat and shortens its life dramatically. Turn the handle just until the water stops, no further. Clean aerators every few months in hard-water areas, since a clogged aerator raises pressure inside the faucet and stresses seals. Keep water pressure in the normal residential range, because chronic high pressure is a leading cause of premature seal failure across every fixture in the house, and having your home's water pressure checked is quick and inexpensive.

Watch for early warning signs after a repair: a handle that gets stiff, a drip that returns within weeks, or a faucet that starts squeaking. These usually mean a seat needs dressing, a cartridge is wearing, or sediment has reached the valve, and catching them early keeps a small fix small. In homes with very hard water, a water filtration and softener system reduces mineral buildup in every faucet, not just the one you just fixed, and it is the single most effective long-term step for cutting repeat faucet repairs. Finally, if a faucet starts leaking under the sink rather than dripping from the spout, do not wait: cabinet leaks damage flooring and cabinetry silently, and a quick leak detection check is far cheaper than replacing a rotted cabinet base.

Frequently Asked Questions