How to Fix a Leaky Faucet: A DIY Guide
- Nest Alpha
- Jul 11
- 4 min read
Updated: Sep 24
Why Do Faucets Leak?
Before diving in, it’s helpful to know why faucets start dripping in the first place. Common causes include:
Worn-out washers or O-rings
Corroded valve seats
Loose parts or damaged cartridges
Identifying the issue will help you fix the leak correctly the first time.
Tools and Materials You’ll Need
To get started, gather the following items:
Replacement parts (washer, O-ring, or cartridge)
Small bowl or towel (to catch drips or parts)
Flashlight (optional, for tight spaces)
Tip: Lay out all tools beforehand to avoid mid-fix frustration.
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Step 1: Turn Off the Water Supply
Before doing any repairs, shut off the water to the faucet. Look under the sink for the shut-off valves and turn them clockwise. Then, turn on the faucet to drain any remaining water and release pressure.
Pro Tip: Place a towel or small bucket under the sink to catch any drips.
Step 2: Plug the Drain
Use a sink plug or stuff a rag into the drain to prevent any small parts from falling in during disassembly. Trust me—this saves time and stress!
Step 3: Identify Your Faucet Type
Not all faucets are built the same. Your repair steps may vary slightly depending on the faucet type:
Compression faucets (older style with separate hot/cold knobs)
Cartridge faucets (common in kitchens)
Ball faucets (rotating ball inside the handle)
Ceramic disk faucets (modern and durable)
Knowing the type will help you buy the right replacement parts.
Step 4: Disassemble the Faucet
Carefully remove the faucet handle using a screwdriver. Then unscrew or pull off additional components until you reach the valve assembly.
Keep all parts in order—you’ll need to reassemble them exactly the same way.
Step 5: Inspect and Replace Faulty Parts
Here’s where you find the culprit:
If you see a worn rubber washer, replace it.
If it’s a damaged cartridge, swap it with a matching one.
Check the O-rings and valve seat for wear or corrosion.
Apply plumber’s tape around the threads before reassembling to prevent future leaks.
Pro Tip: Take old parts to the hardware store to find exact replacements.
Step 6: Reassemble and Test
Once the new parts are in, carefully reassemble the faucet in reverse order. Turn the water supply back on and slowly open the faucet.
Watch closely—if there’s no dripping, congratulations! You’ve successfully fixed your leaky faucet.
Preventing Future Leaks
Now that your faucet is drip-free, here are some tips to keep it that way:
Don’t overtighten handles
Clean aerators monthly
Replace washers every year or two
Install a water softener if you have hard water
Routine maintenance can extend the life of your faucet and reduce the need for future repairs.
When to Call a Plumber
While many faucet leaks are easy to fix, you should call a professional if:
The faucet is still leaking after replacing parts
There’s visible corrosion or cracked components
You’re dealing with low water pressure or pipe issues
FAQs
Q 1: How much water does a leaking faucet waste?
A: A single dripping faucet can waste over 3,000 gallons a year—enough for more than 180 showers!
Q 2: Can I fix a faucet without shutting off the water?
A: No. Always turn off the water supply to avoid flooding or damage.
Q 3: What’s the easiest faucet type to repair?
A: Cartridge and compression faucets are the most DIY-friendly.
Q 4: Why is my faucet still leaking after changing the washer?
A: It could be a damaged valve seat or a faulty installation—check all parts thoroughly.
Final Thoughts
Fixing a leaky faucet isn’t just a smart way to save water—it’s an empowering DIY project that can save you money on plumbing bills. With just a few tools and a little know-how, you can silence that drip and keep your faucet running smoothly.
Additional Tips for Homeowners
Understanding Water Pressure
Water pressure can greatly affect how your faucet operates. High water pressure can cause leaks and damage over time. Consider checking your home's water pressure with a gauge. If it’s too high, you might need a pressure regulator.
Choosing Quality Replacement Parts
When replacing parts, opt for high-quality materials. While they may cost a bit more upfront, they can save you money in the long run by reducing the frequency of repairs.
Regular Maintenance Checks
Make it a habit to check your faucets regularly. Look for signs of wear, such as rust or corrosion. Early detection can prevent bigger issues down the line.
DIY Projects Beyond Faucets
Once you’ve mastered fixing a leaky faucet, consider tackling other small projects around your home. Simple tasks like changing light fixtures or painting a room can enhance your living space and boost your confidence in DIY.
💡 Want more DIY home repair tips?
Download our free Home Maintenance Checklist or explore our latest blog posts at NestAlpha!