Why Is My Faucet Dripping and How Do I Fix It?

December 2, 2025
Plumber working under a white sink, using pliers. He wears a plaid shirt and apron in a bathroom setting.

Why Is My Faucet Dripping and How Do I Fix It?

A dripping faucet might seem like a minor annoyance, but over time, it can waste gallons of water and lead to increased utility bills. Even a slow drip adds up—both in cost and in wear on your plumbing. At Modern Heating & Plumbing Co. in Gurnee, IL, we often help homeowners troubleshoot and repair faucet leaks to restore water efficiency and peace of mind.


If you're wondering why your faucet is leaking and what you can do about it, there are several common causes to consider. Fortunately, many of these issues can be resolved with the right tools, replacement parts, or by calling in a professional for a fast and reliable fix.

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Common Causes of a Dripping Faucet

Most faucet leaks are caused by worn-out or damaged internal components. Over time, washers, O-rings, and seals inside the faucet can degrade due to friction, mineral buildup, or simple age. In cartridge and ceramic disc faucets, the cartridges or seals may fail and allow water to trickle out even when the handle is off. Corrosion or improper installation can also contribute to persistent dripping.

  • Worn-out washers and O-rings are the most common culprits
  • Corroded valve seats can cause leaks at the spout base
  • Loose or damaged faucet parts lead to inconsistent water shutoff
  • Mineral buildup and high water pressure accelerate wear

How to Fix a Dripping Faucet

Fixing a dripping faucet usually involves disassembling the fixture, identifying the faulty component, and replacing it with a matching part. For compression faucets, this often means replacing washers or seals. For cartridge or ceramic disc models, you may need to replace the entire cartridge. Make sure to turn off the water supply before beginning any repair work. If you’re unsure of the faucet type or repair method, it’s best to call a professional to prevent further damage.

  • Shut off the water supply before attempting repairs
  • Identify the faucet type: compression, cartridge, ceramic disc, or ball
  • Replace worn washers, cartridges, or O-rings with the correct parts
  • Reassemble carefully and test for leaks
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When to Call a Professional

While some faucet repairs can be DIY-friendly, others may require professional attention—especially if the leak persists after replacing parts, or if the faucet is old and corroded. If the leak is tied to water pressure issues, deep corrosion, or faulty plumbing beneath the fixture, a licensed plumber can provide a more permanent solution.

  • Persistent leaks after DIY repairs may indicate deeper problems
  • Hard-to-reach fixtures or outdated plumbing may need expert help
  • Professional repairs prevent water waste and costly damage
  • Upgrading old faucets can improve efficiency and performance

The Cost of Ignoring a Dripping Faucet

A single dripping faucet can waste up to 3,000 gallons of water per year, according to the EPA. Beyond the impact on your water bill, constant dripping can stain sinks, promote mold or mildew, and wear down fixtures faster. Addressing the issue early can save you money, prevent water damage, and reduce your environmental footprint.

  • Wasted water increases utility bills
  • Potential for mold and sink damage
  • Faster wear on plumbing components
  • Eco-friendly homes start with small, efficient fixes
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Why Choose Modern Heating & Plumbing Co. in Gurnee, IL?

Modern Heating & Plumbing Co. is your trusted local partner for faucet repair and plumbing services in Gurnee, IL. Our experienced team quickly diagnoses the source of a leak and provides cost-effective, long-lasting solutions. Whether you need a simple washer replacement or a full fixture upgrade, we offer fast, friendly service and expert workmanship. Let us help you stop the drip for good and restore peace (and quiet) to your home’s plumbing.

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