A leaking bathroom faucet can be more than just a minor annoyance—it can lead to higher water bills and potential damage to your fixtures over time. Understanding the root cause of the issue is the first step toward finding an effective solution. If you're dealing with a persistent faucet leak and need professional assistance, Plombier Repentigny offers reliable plumbing services to address the problem and restore your faucet to optimal condition. Here are five common reasons your bathroom faucet might be leaking and how to fix them.

One of the most common reasons for a leaking faucet is a worn-out washer. Washers are small rubber or silicone rings that create a seal when the faucet is turned off. Over time, these washers can wear down due to friction or become brittle, causing water to seep through.
How to Fix It:
Reassemble the faucet and test for leaks.
Tip: Use high-quality washers to extend the lifespan of the repair.
The O-ring is a small, circular rubber component located inside the faucet. It helps to seal the faucet and prevent leaks around the base of the spout. Over time, O-rings can wear out or become loose, leading to a leak.
How to Fix It:
Reassemble the faucet and check for leaks.
Tip: Apply a thin layer of plumber’s grease to the new O-ring before installation to ensure a better seal.
Cartridge faucets rely on a cartridge to control the flow and temperature of water. If the cartridge becomes damaged or worn out, it can cause water to leak from the faucet.
How to Fix It:
Reassemble the faucet and test for leaks.
Tip: Bring the old cartridge to the hardware store to ensure you purchase the correct replacement.
The valve seat connects the faucet to the spout and helps regulate water flow. Over time, mineral deposits from hard water can corrode the valve seat, causing a leak around the spout.
How to Fix It:
Reassemble the faucet and test for leaks.
Tip: Installing a water softener can reduce mineral buildup and prolong the lifespan of your faucet components.
Over time, frequent use can cause parts of the faucet to loosen or wear out, leading to leaks. This can include screws, nuts, or other small components that hold the faucet together.
How to Fix It:
Test the faucet after reassembly to ensure the leak has been resolved.
Tip: Regular maintenance and periodic inspections can help you catch and address issues before they cause significant leaks.
A leaking bathroom faucet is a common household issue, but with the right tools and knowledge, you can often fix it yourself. Whether it’s a worn-out washer, a faulty cartridge, or a corroded valve seat, addressing the problem promptly will save you time, money, and water. For more complex repairs or to ensure the job is done correctly, consider reaching out to Plombier Repentigny. Our team of experienced professionals can handle any plumbing issue, leaving your fixtures in perfect working order.