Sink faucet keeps dripping: What to Check and What to Do Next

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   After the faucet has already been turned off during ordinary use, observe from a dry position whether the spout produces a few residual drops and then stops, or continues dripping without a new use cycle. Do not repeatedly open and close the handle to test it.

   Expected result: The drip stops after a short settling period, continues for a long time, varies with handle position, or is present even when the faucet has not been used.

   Next step: Record the approximate duration and arrange service if the drip persists, worsens, or returns after every use. Continue with location and shutoff observations only.

   Stop if: Stop if the drip becomes a stream, reaches the cabinet or floor, or cannot be observed without standing in water.

   Why this matters

   Why: A short residual drip can be water remaining in the spout, while a persistent drip suggests that the valve or cartridge may not be sealing. Timing does not identify the exact part or prove that the faucet is safe to disassemble.

2. Check 2

   Look without touching for water at the spout tip, around the handle, at the faucet base on the sink or counter, along a sprayer or pull-down hose path, or beneath the counter. Photograph the highest visible wet point and do not remove trim, a handle, or a supply connection.

   Expected result: The drip is only at the spout, appears under or around the handle, runs from the base, appears below the sink, or has more than one visible location.

   Next step: Provide the location and photos to a plumber or the manufacturer, including the faucet model only if it is visible without disassembly.

   Stop if: Stop if water is near an outlet, appliance, disposal, cabinet contents, or an electrical device, or if the source is concealed.

   Why this matters

   Why: A spout-only drip points toward the faucet's closing path; moisture at a handle or base can involve seals or the faucet body; water below the counter can be a supply or hose issue rather than a spout drip. Water can travel, so the lowest wet mark is not always the source.

3. Check 3

   If the hot and cold fixture shutoff valves are clearly identifiable, dry, and easy to reach, note whether each handle turns normally with gentle hand pressure. If you choose to isolate the fixture, close the valves slowly without force; do not use tools or continue if a valve is stuck, damaged, leaking, or unclear.

   Expected result: Both valves close normally, one valve is stuck or damaged, the valve itself begins leaking, the valves are missing or inaccessible, or the faucet continues dripping after isolation.

   Next step: Leave a successfully isolated fixture unused and call a plumber. For a stuck, damaged, inaccessible, or ineffective shutoff, stop manipulating it and seek prompt plumbing help; if water is spreading, use emergency service.

   Stop if: Stop immediately for resistance, spray, valve leakage, uncertainty about which valve serves the fixture, or any need for a wrench, panel removal, or pipe work.

   Why this matters

   Why: Normal shutoff can limit water while service is arranged. A failed, leaking, or uncertain valve means the fixture cannot be safely isolated at that point and may require the building shutoff or professional service; continued dripping after isolation suggests stored water or another supply path and must not be chased by disassembly.

4. Check 4

   From a dry standing position, look for water marks, swelling, soft cabinet material, staining, musty odor, or damp flooring below and around the sink. Do not reach into standing water, move heavy items, touch wet electrical equipment, or clean suspected contaminated material.

   Expected result: The area is dry, has an old mark, is actively wet, shows swelling or odor, or has water near an outlet, disposal, or appliance.

   Next step: Keep the faucet isolated or unused and arrange plumbing and appropriate water-damage or electrical service as needed. Do not conceal the evidence with caulk or cabinet work.

   Stop if: Stop and keep people away for standing water, sewage odor, soft flooring, visible contamination, or wet electrical components.

   Why this matters

   Why: A spout drip may have caused little impact, but moisture below the sink shows that the leak may be traveling or that a second leak exists. Swelling, odor, contamination, or water near electricity increases urgency beyond a routine faucet-parts question.

5. Check 5

   Record whether the faucet is single-handle or two-handle, the spout style, any pull-down or side sprayer, the model label if already visible, and whether the drip began after a filter, hose, cleaning, water-quality, or plumbing change. Do not remove a cover or handle to find the model.

   Expected result: The faucet identity is known, the model is unknown, the drip started after recent work, or there is no clear trigger.

   Next step: Send the model and history, timing, source location, shutoff status, and moisture observations to the plumber or manufacturer support team.

   Stop if: Stop when the next step would require opening the faucet, disconnecting a line, using force, or making a compatibility decision from the symptom alone.

   Why this matters

   Why: Faucet construction and model determine whether a cartridge, stem valve, seal, or O-ring category is even relevant. The same dripping symptom can require different parts, so an unverified fit claim is unsafe.