Why Does My Faucet Drip Even When It’s Turned Off?

A dripping faucet usually means an internal component has worn out, and while the leak may seem minor, it can waste significant water over time.

A faucet that continues dripping after it’s been turned off is one of the most common household plumbing issues. While the steady sound can be annoying, the larger concern is the amount of water being wasted day after day.

In many cases, the problem is caused by normal wear inside the faucet assembly. The good news is that most dripping faucet issues are repairable when addressed early.

Why Faucets Start Dripping

Every time a faucet is turned on and off, internal components experience friction and pressure changes. Over time, seals and moving parts wear down, eventually allowing water to pass through even when the handle is fully closed.

The exact cause depends on the type of faucet and its internal mechanism.

Common Causes of a Dripping Faucet

Worn Washers or Seals

Older faucet designs often use rubber washers that compress tightly when the faucet is shut off.

Over time, these washers can:

  • Harden
  • Crack
  • Flatten from repeated use

Once the seal is no longer tight, water slowly leaks through and creates a drip.

Damaged Cartridge

Many modern faucets use an internal cartridge to control water flow and temperature.

If the cartridge becomes worn or damaged, symptoms may include:

  • Constant dripping
  • Difficulty shutting the faucet off completely
  • Stiff or inconsistent handle movement

Cartridge replacement is a common faucet repair.

Corrosion or Mineral Buildup

Minerals in the water can accumulate inside faucet components over time, especially in areas with harder water.

Buildup can interfere with seals and moving parts, preventing the faucet from closing properly.

Signs may include:

  • Reduced water flow
  • Visible buildup around the spout or handles
  • Intermittent dripping that worsens over time

High Water Pressure

In some homes, excessive water pressure can contribute to faucet dripping.

Pressure-related leaks are sometimes noticeable when:

  • Dripping occurs mostly at certain times of day
  • Faucets leak despite replacement parts
  • Other plumbing fixtures show signs of pressure issues

High pressure can place extra strain on plumbing components throughout the home.

Loose or Worn Internal Components

Inside the faucet are several small parts that work together to stop water flow completely. Over time, repeated use can loosen or wear these components.

Even minor internal wear can allow a slow but continuous drip.

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Why a Dripping Faucet Shouldn’t Be Ignored

A slow drip may not seem urgent, but over time it can waste a surprising amount of water.

Ignoring the problem can also lead to:

  • Higher water bills
  • Increased wear on the faucet
  • Staining in sinks or tubs
  • Worsening leaks over time

Addressing the issue early is usually simpler and less expensive.

What Homeowners Can Safely Check

Before calling a plumber, homeowners can:

  • Determine whether the drip is coming from the spout or around the handle
  • Observe whether hot or cold water is involved
  • Check for visible corrosion or mineral buildup

Avoid forcing handles tighter than normal, as this can damage internal components further.

Repair or Replace?

In many cases, repairing the faucet is straightforward if the fixture is otherwise in good condition.

Replacement may make more sense when:

  • The faucet is older or heavily corroded
  • Repairs are becoming frequent
  • Parts are difficult to source
  • The fixture is outdated or inefficient

A plumber can help determine the most practical option.

When to Call a Plumber

You should contact a plumber if:

  • The faucet continues dripping after basic troubleshooting
  • Water leaks around the base or handles
  • Multiple fixtures are developing similar issues
  • You suspect pressure-related problems

Professional repair helps ensure the issue is properly resolved without damaging the fixture.

Call us Today!

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Doug the Plumber

Need Help Fixing a Dripping Faucet?

If a faucet in your home won’t stop dripping, professional service can identify the cause and prevent unnecessary water waste. Homeowners in the Comox Valley can contact Doug the Plumber for faucet repairs, fixture replacement, and general plumbing service.

We specialize in Bathroom and Kitchen Renovations, plumbing service, maintenance, and repair in the Comox Valley and beyond.

Call Us Anytime: (250) 897-1973