Why Does My Faucet Keep Dripping Even When I Turn It All the Way Off?

The faucet keeps dripping, drop after drop, even when shut as tightly as possible. The instinct to force it harder never fixes this type of problem, which is purely mechanical rather than a matter of applied force.
Why forcing it shut never works
A faucet that drips despite being fully closed almost always indicates wear on an internal component (washer, cartridge, seal) that no longer fully seals the water passage, regardless of the force applied to the handle. Forcing it harder instead prematurely wears out the handle and stem itself without fixing the actual cause.
Internal components by faucet type
| Faucet type | Component usually responsible |
|---|---|
| Compression faucet (two separate hot/cold handles) | Worn rubber washer |
| Cartridge faucet (single handle) | Worn or damaged internal cartridge |
| Ceramic disc faucet | Scratched or misaligned ceramic discs |
| Ball faucet (single pivoting-lever mixer) | Worn internal ball or O-rings |
How to identify your faucet type
The number of handles and their motion (full rotation vs. a pivoting lever) give a first clue about the internal mechanism type, useful information before hunting for the right replacement part or explaining the problem to a plumber.
Why replacing the part is generally simple and affordable
Most components responsible for a drip, like a washer or cartridge, are standardized, inexpensive parts, available at hardware stores with the right model number. The replacement itself is generally accessible for someone comfortable with small home projects, after first shutting off the faucet's water supply.
Why ignoring a simple drip costs more than it seems
A constant drip, even a light one, can waste several hundred liters of water a month, an amount that shows up directly on the water bill in municipalities that charge by usage, on top of continuing to wear down the already-weakened internal mechanism.
Frequently asked questions
Do I need to shut off water to the whole house to fix a dripping faucet?+
Generally not, most faucets have individual shutoff valves under the sink that allow cutting water locally.
How do I know which exact part to replace?+
The faucet's brand and model, often printed on the fixture body or in the purchase documentation, help find the exact compatible part.
Can a dripping faucet cause other damage?+
Beyond wasted water, a constant drip can eventually cause stains or wear on the sink or counter beneath the faucet.
How long does fixing a dripping faucet take?+
Generally under an hour for a standard washer or cartridge replacement, once the replacement part is in hand.
Get a free quote
More to know before your project.
By Julien Fortin — RBQ-licensed plumber, 10 years of experience in residential plumbing
Updated on July 22, 2026