To fix a leaky faucet, first find exactly where the water is escaping. A drip from the spout, water around the handle and a puddle beneath the sink can have different causes, so replacing a cartridge or washer before checking may waste time and money. Dry the faucet and surrounding area, then observe it with the tap off and running. Once you have located the leak, shut off the water and identify the faucet type before buying parts. Many straightforward repairs are manageable for a careful DIYer; seized fittings, damaged plumbing or an uncertain shutoff are good reasons to call a handyman or plumber.
Wipe the faucet, countertop and underside of the sink completely dry. Run the tap, turn it off, and watch where the first new beads of water appear. If the leak is intermittent, repeat the check with both hot and cold water. Water can run along a faucet body or hose before dripping, so trace it back to the highest wet point rather than assuming the place where it lands is the source.
A brief trickle from the spout immediately after turning the tap off may be water draining from the faucet. A drip that continues or returns after the faucet has been off for a while is more likely to indicate a worn or damaged internal part. The location is a useful clue, not a guarantee: faucet construction varies, and more than one fault can occur at once.
| What you observe | Likely area to inspect | Useful next check |
|---|---|---|
| Water continues to drip from the spout when the faucet is off | Valve, cartridge, washer or internal seal | Identify the faucet type and inspect the shutoff mechanism |
| Water appears around the handle while the tap is running | Handle stem, O-ring, cartridge or nearby seal | Dry the handle and trace the first point that becomes wet |
| Water gathers around the faucet base | Base seal, faucet body or water tracking down from above | Check whether it leaks only while running, and inspect beneath the sink |
| Water appears beneath the sink | Supply connection, hose, faucet shank or drain area | Dry each connection and watch for the first new drop |
| Spray head or pull-down hose drips | Spray-head connection, hose or faucet connection | Check whether the leak occurs during use or while the faucet is off |
If the cabinet floor or nearby material is getting wet, move stored items out and identify whether water is coming from the faucet, a supply line or the drain. A faucet repair will not fix a leaking drain connection. If water is flowing rather than slowly dripping, turn off the relevant supply if you can do so safely and arrange help promptly.
The correct repair depends on the faucet’s design. A two-handle faucet may use compression valves or cartridges; a single-handle faucet may use a cartridge, ball mechanism or ceramic-disc assembly. Appearance can narrow it down, but it may not reveal the exact replacement part. Look for the brand and model information on the faucet, packaging or installation paperwork, if available.
These descriptions are starting points, not a reason to buy parts by appearance alone. If you cannot confirm the faucet type or model, take clear photos of the faucet and its exposed parts after disassembly, or ask a repair professional to identify them. Keep the old part until the replacement has been checked against it.
Gather a screwdriver, an adjustable wrench, a flashlight, a cloth and a small container for screws or clips. A plug or cloth in the sink drain helps prevent small parts from disappearing. Protect the faucet finish with a cloth when using a tool, and use the tool only on the part designed to turn.
A persistent drip when the faucet is off usually points to a part that controls water flow, such as a washer, valve, cartridge or internal seal. On a compression faucet, the washer or valve seat may be worn. On a cartridge, ball or ceramic-disc model, the repair may require the correct cartridge or a compatible repair kit. Replacing the entire faucet is not automatically necessary, but a damaged valve body or unavailable replacement part can change the calculation.
Water that appears around a handle while the faucet is running may be escaping near a stem, O-ring or cartridge. Dry the area and observe it as you operate the tap to confirm that the handle is the first place to become wet. If the leak comes from under the handle, replacing a spout washer alone is unlikely to solve it; identify the handle mechanism before ordering parts.
Water at the base can come from a failed seal, a leak inside the faucet body or water running down from the handle. It may also appear only when the faucet is running or when the spout is turned. Dry the base, run the tap and trace the water’s path. If it returns from beneath the counter or the faucet body itself, the repair may be more involved than tightening the mounting hardware.
Check the supply connections, flexible hoses and faucet shanks separately. Dry each area, then watch while the faucet runs and while it is off. A leak at a supply connection is different from one at the faucet’s internal valve, and a dripping drain should be diagnosed separately. If a hose is split, a fitting is badly corroded or the water source is unclear, stop using the faucet until the problem is assessed.
A simple seal or cartridge replacement may suit a homeowner who can shut off the water, identify the faucet and follow the correct instructions. Call a professional if the shutoff valve will not close, a fitting is seized, the faucet is corroded, parts are difficult to identify or the leak continues after a correctly matched repair. A professional is also a sensible choice if the leak has damaged the cabinet or if you are not comfortable working around water connections.
When arranging service, describe where and when the leak appears, the faucet’s brand or model if known, and any steps already taken. Ask whether the visit includes diagnosis, parts and testing, and whether the repair is limited to the faucet or may involve the supply lines or sink. The scope depends on what the inspection finds, so an exact repair cost cannot be estimated from the drip alone.
Often, yes. A worn washer, O-ring, cartridge or model-specific seal may be replaceable while the faucet stays in place. Replacement becomes more likely if the faucet body is damaged, parts cannot be matched or the repair does not stop the leak.
A short flow immediately after shutoff may simply be water draining from the spout. If dripping continues or returns after the faucet has been off for a while, inspect the internal valve, washer, cartridge or seal that controls water flow.
Not automatically. First identify which side or component is leaking and check the faucet’s repair instructions. If the faucet uses matched parts or the manufacturer recommends replacing them together, follow that guidance; otherwise, replace only the confirmed faulty part.
A minor spout drip may not stop the faucet from working, but leaks around the base or beneath the sink can wet cabinets and surrounding materials. If water is escaping outside the sink, turn off the supply if safe and arrange a repair rather than leaving the leak unattended.
Check that the cartridge is the correct model and orientation, and that any retaining clip or seal is installed correctly. If the faucet still leaks, the cause may be another damaged component, a faulty installation or a leak elsewhere; shut off the water and consider professional diagnosis.
To fix a leaky faucet without wasting parts, use the leak’s location to guide the diagnosis, identify the faucet before buying a repair kit, and test every connection after reassembly. If you cannot shut off the water safely or the source remains unclear, a handyman or plumber can inspect the faucet and confirm the repair needed.
