A leaking faucet is more than just an annoyance — it can waste hundreds of gallons of water each year and drive up your utility bill. In this guide, we’ll show you exactly how to fix a leaking faucet yourself, covering the most common faucet types and the tools you’ll need. Whether your sink drips constantly or only after you turn it off, the repair is often simpler than you think. Before you call a professional, try these proven DIY steps to stop the leak and save money.
Why Fix a Leaky Faucet Quickly?
According to the U.S. Environmental Protection Agency’s WaterSense program, a faucet that drips once per second can waste more than 3,000 gallons per year — that’s enough water for 180 showers. Beyond the environmental impact, a slow drip can lead to stained sinks, mineral buildup, and even water damage under the cabinet. Prompt repair keeps your home safe and your water bill low.
Tools and Materials You’ll Need
- Adjustable wrench
- Screwdrivers (flathead and Phillips)
- Allen wrench set (hex keys)
- Replacement O-rings, washers, and cartridge (specific to your faucet brand)
- Plumber’s grease
- Bucket and towels
- Flashlight
Step-by-Step: How to Fix a Leaking Faucet
1. Identify Your Faucet Type
Faucets generally fall into four categories: compression (two handles), cartridge (single or double handle), ball-type (single handle with a dome cap), and ceramic-disk (single lever with a wide base). Knowing which type you have determines the repair approach. Most modern faucets are cartridge or ceramic-disk.
2. Shut Off the Water Supply
Locate the shutoff valves under the sink and turn them clockwise to close. If there are no valves, shut off the main water supply to your home. Open the faucet to relieve pressure and drain any remaining water.
3. Remove the Handle
Use a screwdriver or Allen wrench to remove the handle screw (often hidden under a decorative cap). Lift the handle off. For stubborn handles, gently pry with a flathead screwdriver — but protect the finish with tape.
4. Access and Replace the Internal Parts
- Compression faucet: Unscrew the valve stem and replace the rubber washer at the base. Also check the O-ring on the stem.
- Cartridge faucet: Pull out the cartridge (may require a cartridge puller) and install a matching replacement.
- Ball-type faucet: Remove the cap and cam, lift out the ball, and replace the seals and springs inside.
- Ceramic-disk faucet: Remove the cylinder and clean the ceramic discs; if scratched, replace the cartridge.
5. Reassemble and Test
Apply a thin layer of plumber’s grease to new O-rings and washers. Reassemble in reverse order. Turn the water supply back on slowly, then open the faucet to check for leaks. If it still drips, double-check that all parts are seated correctly.
Common Leak Types and Their Causes
| Leak Location | Likely Cause | Typical Fix |
|---|---|---|
| Handle drip (single lever) | Worn cartridge or O-ring | Replace cartridge |
| Drip from spout (two handles) | Worn washer or seat | Replace washer or re-face seat |
| Drip at base of spout | Damaged O-ring | Replace O-ring |
| Drip only when handle is moved | Loose packing nut or bad cartridge | Tighten nut or replace cartridge |
When to Call a Professional Plumber
If you’ve replaced the washer, cartridge, and O-rings but the faucet still leaks, there may be deeper issues such as a cracked valve body, corroded pipes, or high water pressure. Attempting further disassembly without experience can damage the fixture or cause a flood. That’s when you need expert help. MyTownPlumber offers fast, reliable faucet repair and leak detection services to pinpoint the problem. We also handle pipe repair and water heater repair if the leak has affected other parts of your plumbing system.
Preventing Future Faucet Leaks
Regular maintenance extends faucet life. Clean aerators every few months to remove mineral buildup. Replace O-rings and washers at the first sign of wear. If you have hard water, consider installing a water softener to reduce scale accumulation. Also, avoid overtightening handles — that can damage seals prematurely.
Frequently Asked Questions
Q: Can a leaking faucet cause water damage?
Yes. Even a slow drip can lead to mold, wood rot, and damage to cabinets and flooring over time. The CDC notes that standing moisture encourages mold growth, which can affect indoor air quality. Prompt repair is essential.
Q: How much does professional faucet repair cost?
Typical US costs range from $100 to $350 for labor and parts, depending on your location and the faucet type. Many plumbers charge a service call fee plus hourly rates. Contact MyTownPlumber for an estimate.
Q: Do I need to turn off the water to fix a faucet?
Absolutely. Always shut off the water supply before disassembling any faucet to avoid flooding. If your shutoff valves are stuck or missing, call a plumber.
Q: What if my faucet still leaks after replacing the cartridge?
The valve seat may be corroded or the faucet body cracked. In such cases, replacement of the entire faucet is often more cost-effective than further repairs.
Q: Is it worth fixing an old faucet myself?
If the faucet is less than 10 years old and you have basic tools, a DIY repair can save $100–200. Older faucets may have discontinued parts, making replacement the better option.
Q: How long does a faucet repair take?
Most DIY repairs take 30 minutes to 1 hour. Professional repairs are usually completed within 1–2 hours, including diagnosis.
Save Water and Money Today
A dripping faucet doesn’t have to drain your wallet or waste precious water. Follow the steps above to stop the leak yourself — and if you hit a snag, the team at MyTownPlumber is just a call away. We’re here for all your plumbing needs, from drain cleaning to toilet repair and sewer line repair. For a limited time, new customers can save on their first service. Claim your offer now and let us handle the rest.
For more information on water conservation, visit the EPA WaterSense program. To learn about plumbing codes and safety standards, check the International Association of Plumbing and Mechanical Officials (IAPMO).