How to Fix a Leaky Faucet: The Ultimate Step-by-Step Guide

Why You Should Fix a Leaky Faucet Immediately

• Water Waste: A dripping faucet can waste up to 3,000 gallons of water per year.
• Higher Utility Bills: Every drop adds to your water bill, costing you more over time.
• Prevent Further Damage: Left unrepaired, leaks can lead to corrosion, mold growth, and damage to sink fixtures.

Fixing a faucet is a straightforward task for most homeowners, and this guide will make it easy for you to handle your own leaky faucet repair like a pro.

Types of Faucets: Identify Yours Before Starting

Before starting your repair leaky faucet project, it’s important to identify your faucet type. Each type has unique components that may require different repair methods:

1. Compression Faucets:

   • Traditional faucets with separate handles for hot and cold water.
   • Most common in older homes.
   • Leaks are usually caused by worn washers or valve seats.

2. Ball Faucets:

   • Single-handle faucets found in kitchens.
   • Uses a ball-and-socket design to control water flow.
   • Prone to leaks due to worn-out seals or springs.

3. Cartridge Faucets:

   • Single- or double-handle faucets with a cartridge inside to control water flow.
   • Leaks are often caused by worn or damaged cartridges.

4. Ceramic Disc Faucets:

   • Modern and durable, with ceramic discs that regulate water flow.
   • Leaks occur when the ceramic disc or seals wear out.

Tools and Materials You’ll Need

Having the right tools and materials on hand ensures your repair goes smoothly:

Tools

• Adjustable wrench
• Basin wrench (for hard-to-reach areas)
• Flat-head and Phillips screwdrivers
• Hex wrench or Allen key
• Needle-nose pliers
• Plumber’s tape
• Penetrating oil (like WD-40)

Materials

• Replacement washers, O-rings, or seals (depending on faucet type)
• Faucet repair kit (optional but handy for common issues)
• Bucket or bowl (to catch water)
• Towels or rags
• Silicone grease (for lubricating parts)
  
  

Step-by-Step Guide: How to Fix a Leaky Faucet

Step 1: Turn Off the Water Supply

1. Locate the shut-off valves under the sink. Turn them clockwise to stop the water flow.
2. If the valves are stuck or inaccessible, turn off your home’s main water supply.
3. Open the faucet to drain any remaining water and relieve pressure.

Tip: Place a bucket under the sink to catch drips during disassembly.

Step 2: Disassemble the Faucet

1. Remove the Handle(s):

   • Use a flat-head screwdriver to pop off the decorative cap (if applicable).
   • Unscrew the handle using a Phillips or Allen wrench, depending on the faucet type.

2. Inspect Internal Components:

   • Remove the valve stem, cartridge, or ball assembly, depending on your faucet type.
   • Note the arrangement of parts to ensure proper reassembly later (taking photos can help).

Tip: Use penetrating oil if screws or nuts are stuck due to rust.

Step 3: Inspect and Replace Worn Parts

Compression Faucet Repairs

• Inspect the rubber washer at the base of the valve stem.
• Replace the washer if it’s worn or cracked.
• Check the valve seat for damage. If it’s worn, you may need to resurface it with a seat wrench or replace it entirely.

Ball Faucet Repairs

• Check the seals and springs inside the ball assembly. Replace them if worn or damaged.
• If the ball itself is scratched or corroded, replace it with a new one.

Cartridge Faucet Repairs

• Inspect the cartridge for wear or cracks. Replace it if necessary.
• Ensure the O-rings around the cartridge are intact. Replace them if they appear worn.

Ceramic Disc Faucet Repairs

• Remove the ceramic disc cartridge and inspect the rubber seals. Replace any damaged seals.
• Clean the cartridge with white vinegar to remove mineral buildup, then reinstall.

Tip: Bring damaged parts to your local hardware store to ensure you purchase the correct replacements.

Step 4: Reassemble the Faucet

1. Insert the new or repaired parts into the faucet in the reverse order of disassembly.
2. Tighten screws and nuts securely but avoid over-tightening, which could damage components.
3. Apply plumber’s tape to threaded connections to prevent leaks.

Step 5: Turn On the Water Supply and Test

1. Slowly turn on the water supply valves under the sink.
2. Test the faucet by turning it on and off, checking for leaks around the handle, spout, or base.
3. If leaks persist, double-check that all parts are properly seated and tightened.

Troubleshooting Common Issues

Faucet Still Leaking After Repairs?

• Ensure all seals and washers are installed correctly.
• Check for hairline cracks in the faucet body or spout.
• If the leak continues, it may be time to replace the faucet entirely.

Low Water Pressure After Repair?

• Remove the aerator at the tip of the faucet and clean it to remove debris or mineral buildup.
• Soak the aerator in vinegar for an hour to dissolve stubborn buildup.

When to Call a Professional Plumber

While most faucet repairs are DIY-friendly, some situations require expert assistance:

• Persistent Leaks: If the faucet still leaks after replacing parts.
• Corroded Plumbing: Visible rust or corrosion on pipes or fittings.
• Complex Installations: Unfamiliar or advanced faucet designs may need professional repair.

Cost of Professional Help: Hiring a plumber for leaky faucet repair typically costs $150–$300, depending on the complexity of the job.

How to Prevent Faucet Leaks in the Future

1. Routine Maintenance: Inspect washers, O-rings, and cartridges every 6–12 months.
2. Avoid Over-Tightening: Excessive force can wear out seals faster.
3. Clean Regularly: Remove mineral buildup on aerators and faucet components with vinegar.
4. Upgrade to Quality Faucets: Consider faucets with ceramic disc technology for long-lasting performance.

Conclusion: Fixing a Leaky Faucet Saves Water, Money, and Time

Learning how to fix a leaky faucet is a valuable skill that every homeowner should master. Whether it’s a leaky bathroom faucet or a dripping kitchen faucet, addressing the issue early can prevent water waste, reduce utility bills, and avoid more costly repairs down the line.

By following this guide, you’ll have the confidence to tackle your own leaky faucet repair. And remember, if all else fails, don’t hesitate to call a professional for help.

Got questions or additional tips to share? Leave a comment below—we’d love to hear from you!