How to Fix a Leaky Bathroom Sink Faucet Double Handle | A Step-by-Step Guide


Leaky bathroom sink faucets can be a persistent and frustrating problem for homeowners. Not only do they waste water, but the steady dripping sound can also be annoying. Fixing a leaky bathroom sink faucet double handle may seem like a daunting task, but with the right tools and a little bit of know-how, it can be an easy DIY project. In this article, we’ll provide you with a step-by-step guide on how to fix a leaky bathroom sink faucet double handle, along with information on common causes of leaks, types of bathroom faucets, the importance of regular maintenance, and DIY vs. professional repair.

Step-by-Step Guide

Before we dive into the step-by-step guide, let’s go through a list of materials you’ll need:

  • Adjustable wrench
  • Flathead screwdriver
  • Phillips screwdriver
  • Pliers
  • Replacement parts (depending on the issue)

Once you have all the necessary materials, follow these steps:

  1. Turn off water supply: The shut-off valves are typically located under the sink. Turn them clockwise to shut off the water supply.
  2. Remove decorative handles: Use a flathead screwdriver to carefully pry off the decorative covers on the handles. Then, use a Phillips screwdriver to remove the screws beneath the covers.
  3. Remove nuts holding faucet in place: Use an adjustable wrench to loosen and remove the nuts holding the faucet in place.
  4. Remove faucet: Gently pull up on the faucet to remove it from the sink.
  5. Replace damaged parts: Check the faucet for any damaged parts. Common causes of leaks include worn out washers, corroded valve seats, loose parts, and broken O-rings. Replace any damaged parts using pliers or a screwdriver.
  6. Reassemble faucet: Once all damaged parts have been replaced, reassemble the faucet by following the reverse steps. Tighten all nuts and screws to ensure there are no leaks.

Video Tutorial

If you’re a visual learner, watching a video tutorial may be the way to go. Here’s a helpful video that provides a step-by-step demonstration with explanations, as well as additional tips and tricks:

 Common Causes of Bathroom Sink Leaks
Common Causes of Bathroom Sink Leaks

Common Causes of Bathroom Sink Leaks

There are a few common causes of bathroom sink leaks. Knowing how to identify the issue is essential to fixing the problem:

  1. Worn out washers: Washers can wear out over time, causing leaks.
  2. Corroded valve seat: The valve seat is responsible for connecting the faucet to the sink. If it becomes corroded, leaks may occur.
  3. Loose parts: Loose parts can cause leaks. Make sure all nuts and screws are tightened properly.
  4. Broken O-rings: O-rings help prevent leaks. If they become damaged or broken, they need to be replaced.

Once you have identified the issue, follow these instructions to fix it:

  • Worn out washers: Remove the handle and replace any worn out washers.
  • Corroded valve seat: Use a special tool to remove the valve seat and replace it with a new one.
  • Loose parts: Tighten any loose parts with a wrench or screwdriver.
  • Broken O-rings: Remove the faucet and replace any broken O-rings.

DIY vs. Professional

Deciding whether to tackle a leaky bathroom sink faucet repair as a DIY project or to hire a professional can be a difficult decision. Here are some pros and cons of each option:



  • Cost-effective
  • A good opportunity to learn and build DIY skills


  • May cause further damage if not done correctly
  • May take up a significant amount of time
  • May require additional tools and materials



  • Expert knowledge and experience
  • Can save time and hassle
  • Provides a guarantee on their work


  • More expensive than DIY
  • May require scheduling an appointment and waiting for a technician to arrive

When deciding whether to go DIY or professional, consider the level of difficulty of the repair and your personal DIY experience. If you’re uncomfortable with the repair, it’s always best to hire a professional.

 Different Types of Bathroom Faucets
Different Types of Bathroom Faucets

Different Types of Bathroom Faucets

Not all bathroom faucets are created equal. Knowing the different types of bathroom faucets and how they affect repairs is essential:

  • Single handle
  • Double handle
  • Centerset
  • Widespread
  • Wall-mount

Here’s how to fix a leaky double handle faucet:

  1. Turn off the water supply for the sink.
  2. Remove the decorative cap on the faucet handle.
  3. Remove the screw holding the handle in place.
  4. Remove the handle from the faucet base.
  5. Remove the retaining nut holding the valve in place.
  6. Remove the valve and check for any damage or wear.
  7. Replace any damaged parts.
  8. Reassemble the faucet.
 The Importance of Regular Maintenance
The Importance of Regular Maintenance

The Importance of Regular Maintenance

Regular maintenance is essential in preventing leaks and other plumbing problems. Here are some simple tips for maintenance:

  • Clean the aerator regularly to prevent clogged pipes and reduced water pressure.
  • Check for leaks under the sink regularly.
  • Inspect the sink basin for cracks and other damage.
  • Replace worn out washers and other parts as necessary.

Conducting routine check-ups can help you identify any potential problems before they become more serious and costly to repair.


A leaky bathroom sink faucet double handle may seem like a major problem, but with the right tools and some basic knowledge, it’s a DIY repair that can be handled easily. Remember to identify the issue before attempting any repairs, and always use caution when working with plumbing. Regular maintenance is also important in preventing future leaks and maintaining your bathroom sink’s functionality. Whether you choose to go DIY or hire a professional, we hope this guide has provided you with the information you need to fix your leaky bathroom sink faucet.

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