A leaky bathroom faucet may seem like a small issue, but over time it can waste water, increase utility bills, and cause unwanted noise or corrosion. Whether it’s a single-handle or tall basin mixer, leaks usually occur due to worn components or improper sealing inside the valve structure.
As a professional bathroom faucet manufacturer, we design and produce high-quality faucets that ensure long-term reliability and easy maintenance. However, even the best faucets need occasional care. Here’s a detailed guide on how to fix a leaky bathroom faucet quickly and correctly.
Before beginning any repair, it’s important to identify where the leak originates:
Dripping from the spout: Usually caused by worn-out cartridges, O-rings, or washers.
Leak at the handle base: Indicates a damaged cartridge seal or loose retaining nut.
Leak under the sink: Often due to a faulty supply hose connection or corroded fittings.
Understanding the source helps you apply the right repair method and prevent further damage.
To repair a leaky faucet, prepare these tools and materials:
Adjustable wrench
Hex (Allen) key
Screwdriver set
Plumber’s grease
Replacement cartridge or O-rings (according to your faucet model)
Soft cloth or towel to protect surfaces
Tip: If you are unsure of your faucet model, take a photo before disassembly or consult the supplier for the correct replacement part.
Turn off both the hot and cold water valves located under the sink. Open the faucet to release any remaining water pressure in the line.
Use an Allen key or screwdriver to loosen the screw hidden behind the decorative cap or handle lever. Carefully lift the handle off to expose the internal cartridge assembly.
Depending on the faucet design, you may need to remove a retaining nut or decorative collar to access the ceramic cartridge inside. Keep all small parts organized during removal.
Examine the O-rings, rubber washers, and ceramic disks for signs of wear, cracks, or mineral buildup. Even minor damage can cause leaks when water pressure increases.
If the cartridge or seals are damaged, replace them with new ones that match your faucet model. Apply a small amount of plumber’s grease to ensure smooth operation and proper sealing.
Reattach the retaining nut, handle, and decorative parts in the reverse order. Turn the water supply back on and test the faucet for any leaks or drips. If the leak persists, double-check that the cartridge is seated properly.
Clean the aerator regularly to remove sediment buildup that can affect water flow.
Avoid overtightening the handle when closing the faucet—it can wear out seals faster.
Use mild cleaners and avoid abrasive pads that may scratch chrome or brushed finishes.
Check water pressure: Excessive pressure can stress internal components.
Schedule periodic inspection: Replacing O-rings or seals every few years extends faucet life.
With proper care, a high-quality faucet can function flawlessly for over a decade.
We specialize in manufacturing premium bathroom faucets with:
Precision-engineered ceramic cartridges for drip-free performance.
SUS304 or brass body construction ensuring corrosion resistance and durability.
Multiple finishes including chrome, matte black, brushed nickel, and PVD colors.
OEM/ODM customization for design, logo, and packaging to match project needs.
Easy installation structure compatible with various basin heights and countertop styles.
Each faucet undergoes 100% leak testing and quality inspection before shipment to guarantee reliability and long-term user satisfaction.
If the faucet is old, heavily corroded, or leaking from multiple points, replacement may be more practical. Modern faucets are equipped with water-saving aerators, improved cartridges, and enhanced sealing systems, making them both efficient and stylish upgrades.
Our factory provides custom-made bathroom faucets—from tall basin mixers to single-handle and dual-control models—offering professional performance for both residential and commercial projects.
Fixing a leaky bathroom faucet is a simple process that involves identifying the problem, replacing worn components, and reassembling the unit correctly. Regular maintenance helps avoid costly water waste and ensures consistent performance.
As a trusted bathroom faucet manufacturer and OEM supplier, we provide long-lasting, customizable faucet solutions that combine functionality, design, and reliability for global clients.
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