How to Fix a Leaky Faucet: A Step-by-Step DIY Guide
About This Project
This DIY guide demonstrates how to fix a leaky compression faucet. The first step is to turn off both the hot and cold water supply valves under the sink and briefly turn on the faucet to release any remaining pressure. Next, carefully pry off the decorative cap on the faucet handle using a flat-head screwdriver, after which you should locate and remove the handle screw using an appropriate screwdriver. Once the handle is off, remove the packing nut with an adjustable wrench, and inspect the O-rings and seat washer for wear and tear. Replace any damaged O-rings and the seat washer with new ones from a faucet repair kit. Put the faucet back together by reinstalling the handle and cap, then turn the water supply back on to check for any remaining leaks.
Best for homeowners and DIY enthusiasts.
Tools & Materials
Milwaukee 8 in. x 3/8 in. Slotted Flat Head Screwdriver with Cushion Grip MT209
HDX 3-1/4 in. 6-in-1 Screwdriver 120SD12D
Adjustable Wrench
DANCO 200-Piece O-Ring Kit 34443
TOTO S7A Washlet Elongated Electric Heated Bidet Seat with Contemporary Lid in Cotton White SW4736AT40#01
Milwaukee 8 in. x 3/8 in. Slotted Flat Head Screwdriver with Cushion Grip MT209
The Milwaukee® 3/8" Slotted 8" Cushion Grip Screwdrivers (USA) are manufactured to give the professional the best-fitting screwdriver with max grip. These screwdriver tips are custom machined to deliver
HDX 3-1/4 in. 6-in-1 Screwdriver 120SD12D
The HDX 3-1/4 in. 6-in-1 Screwdriver features double-sided bits with the four most common screwdriver tip styles, including a #1 Phillips bit, a #2 Phillips bit, a 3/16 in. flathead bit and a 1/4 in. flathead bit. Both ends of the shaft can be used as 1/4 in. nut drivers when the bits are removed, offering convenient, versatile use. The high-visibility orange handle makes the handy tool easy to find on a job site or in a toolbox.
Adjustable Wrench
Fits various nut and bolt sizes with its adjustable jaw.
DANCO 200-Piece O-Ring Kit 34443
O-rings get lost periodically and get warped/worn out over time. A damaged O-ring,(or no faucet O-ring, at all) means a poor seal, leading to a leaky mess. Always have a spare O-ring on hand! Faucet O-rings
TOTO S7A Washlet Elongated Electric Heated Bidet Seat with Contemporary Lid in Cotton White SW4736AT40#01
TOTO S7A elongated bidet toilet seat with ewater+ and auto open and close contemporary lid is an electronic luxury seat that cleanses you with endless warm water, providing an exceptionally clean feeling.
Steps
Remove the Faucet Handle
10 minsCarefully remove the decorative cap on the faucet handle using a flathead screwdriver. Then, locate and remove the handle screw using the appropriate screwdriver (Phillips or flathead, depending on your faucet). Finally, remove the handle itself.
Watch: Disassemble Faucet Handle
Inspect and Replace O-rings and Seat Washer
30 minsFor compression faucets, use a wrench to carefully remove the packing nut. Inspect the O-rings and seat washer for wear and tear. Replace any damaged components with new ones from a faucet repair kit. Reassemble the faucet, following the steps in reverse order. Tighten all connections securely.
Watch: Install New Seals and Packing NutCommon Problems
Stripping the faucet stem by turning the packing nut the wrong way.
Solution: Note the color of your packing nut. In the video, white nuts are right-hand threaded and tan nuts may be left-hand threaded.
Avoid overtightening the plastic packing nut to prevent it from cracking.
Solution: To avoid this issue: Be mindful of this warning and take appropriate precautions.
New gasket doesn't fit?
Solution: The new packing gasket may be cylindrical, unlike the old concave one. This is normal, as it will conform to the correct shape when tightened.
Water sprays everywhere when faucet parts are removed.
Solution: If you cannot find local shut-off valves under the sink, you will need to shut off the main water supply to the house.
Faucet handle is stuck and won't budge.
Solution: If the handle is stuck due to mineral buildup, you may need to wiggle it gently or use a handle puller.
Forcing a stubborn faucet handle can strip screws or damage components.
Solution: A small flat-head screwdriver or a similar tool works well for this step.
Lost faucet parts during repair.
Solution: Place the cap and screw in a safe place, such as a small container or the sink drain (with the stopper closed), to avoid losing them.
Frequently Asked Questions
What's the very first thing I need to do to safely start this faucet repair?
Always begin by turning off both the hot and cold water supply valves located under your sink. After that, briefly turn on the faucet to release any residual water pressure and ensure the water flow has completely stopped before proceeding.
The guide lists specific Milwaukee and HDX screwdrivers. Do I need these exact brands, or will generic tools work?
While specific brands are mentioned, the key is to have the correct *type* and *size* of screwdrivers for your faucet. You'll need a flat-head screwdriver for prying the decorative cap and another appropriate screwdriver (often flat-head or Phillips) to remove the handle screw. An adjustable wrench is essential for the packing nut.
What if I can't get the decorative cap off, or the handle screw is stripped or stuck?
Avoid forcing stuck parts, as this can cause damage. For a stubborn cap, try a thin plastic pry tool to prevent scratches. If a screw is stuck, a penetrating oil might help loosen it, or you may need a screw extractor if it's stripped beyond simple removal.
How much should I expect to spend on parts for this DIY faucet repair, and how long does it usually take?
Most faucet repair kits, which include new O-rings and seat washers, are very inexpensive, typically costing under $10-$20. The project is estimated to take around 60 minutes for beginners, potentially less if you're experienced or if the components are easily accessible.
How can I tell if my leaky faucet is a compression type, and is this guide suitable for all faucet leaks?
This guide specifically addresses compression faucets, which typically have separate hot and cold handles that you turn multiple times to open or close the water flow. If your faucet has a single lever or requires only a quarter turn, it's likely a cartridge or ball-type faucet, and this guide might not apply directly to its repair.
I replaced the O-rings and seat washer, but my faucet is still leaking. What should I check next?
Double-check that all new components are correctly seated and that you used the right size O-rings and washer for your faucet model. If the leak persists, the valve seat itself might be corroded or damaged, or the faucet's internal metal components may be worn, requiring further inspection or professional help.
