If your outdoor faucet is dripping, you can repair it yourself with the right tools and a bit of know-how. This guide explains how to repair a dripping outdoor faucet step by step, helping you stop water waste and prevent costly damage to your home’s exterior plumbing. A slow drip can waste hundreds of gallons of water annually, according to the EPA WaterSense program, which also notes that fixing common leaks can save homeowners about 10% on their water bills. Before you start, ensure you have a basic understanding of your faucet type—most outdoor faucets are compression-style hose bibs. If you encounter more complex issues, our leak detection services can help identify hidden problems.
Common Causes of a Dripping Outdoor Faucet
Understanding why your outdoor spigot drips is the first step to a successful repair. Common causes include:
- Worn-out washer: The rubber washer inside the handle compresses over time, causing drips.
- Damaged O-ring: A cracked or flattened O-ring around the stem allows water to seep past.
- Corroded valve seat: Mineral buildup or corrosion prevents the washer from sealing tightly.
- Loose packing nut: If the nut behind the handle is loose, water can leak around the stem.
- Frozen or cracked parts: In colder climates, ice can crack the faucet body or internal components, especially if the outdoor faucet lacks a frost-proof design.
Identifying the culprit before disassembly saves time. For example, a drip from the spout often points to a washer issue, while a leak around the handle suggests a packing nut or O-ring problem.
Tools and Materials You’ll Need
Gather these items before beginning the repair. Most are available at local hardware stores.
| Tool / Material | Purpose |
|---|---|
| Adjustable wrench or pliers | Loosening and tightening nuts |
| Screwdriver (flathead and Phillips) | Removing handle screws and packing nut |
| Replacement washer and O-ring kit | Replacing worn seals (universal kits fit most brands) |
| Thread seal tape (Teflon tape) | Sealing threaded connections |
| Silicone faucet grease | Lubricating O-rings and stems |
| Bucket or towels | Catching residual water |
Typical parts cost between $5 and $10 for a standard kit. If you hire a pro, expect a service call fee of $75–$150 in most U.S. regions (prices vary).
Step-by-Step Repair Instructions
Step 1: Turn Off the Water Supply
Locate the shutoff valve for your outdoor faucet. It is usually inside your basement, crawlspace, or garage, on the pipe leading to the exterior. Turn the valve clockwise until it stops. Open the outdoor faucet fully to drain any remaining water. If you cannot find a dedicated shutoff, you may need to turn off the main water supply to your home—a task our pipe repair team can assist with if you are unsure.
Step 2: Remove the Handle and Bonnet
Use a screwdriver to remove the screw holding the handle. Pull the handle straight off. Underneath, you will see a hexagonal brass bonnet (packing nut). Use an adjustable wrench to unscrew the bonnet counterclockwise. Carefully pull out the stem assembly. Note the orientation of the parts for reassembly.
Step 3: Inspect and Replace the Washer and O-Ring
Look at the small rubber washer at the bottom of the stem. If it is flattened, cracked, or missing, replace it with an identical size from your kit. Also check the O-ring around the stem—if it’s worn, gently remove it and install a new one. Apply a thin layer of silicone faucet grease to both the new washer and O-ring to extend their lifespan. If the valve seat inside the faucet body is rough or pitted, you may need a seat grinding tool or a replacement faucet. According to the International Association of Plumbing and Mechanical Officials (IAPMO), proper sealing is critical for code compliance and water conservation.
Step 4: Reassemble and Test
Slide the stem back into the faucet body, ensuring it aligns correctly. Tighten the bonnet snugly but do not overtighten—this can crack the faucet. Reattach the handle and screw. Turn the water supply back on slowly. Open the outdoor faucet and check for drips from the spout and around the handle. If the drip persists, you may have a deeper issue, such as a damaged valve seat or a cracked faucet body, which our toilet repair team (also experienced with outdoor fixtures) can diagnose.
When to Call a Professional Plumber
Not every dripping outdoor faucet is a simple DIY fix. Contact a licensed plumber if:
- The faucet body is cracked or severely corroded.
- You cannot locate or access the shutoff valve.
- Water continues to drip after replacing all seals.
- You suspect frozen pipes or a burst line—these require immediate leak detection professional assessment.
- The repairs require soldering or cutting pipes.
A professional can also upgrade your old faucet to a frost-proof model, which prevents freezing and extends the life of your outdoor plumbing.
Frequently Asked Questions (FAQ)
Why is my outdoor faucet dripping even when turned off?
This usually indicates a worn washer or O-ring inside the valve. Water seeps past the seal because the rubber has hardened or flattened over time. Replacing the washer typically resolves the issue.
Do I need to turn off the water to the whole house to fix an outdoor faucet?
Most outdoor faucets have a dedicated shutoff valve inside your home. Turn that valve off and open the faucet to drain it. If no dedicated valve exists, you may need to shut off the main water supply.
Can a dripping outdoor faucet cause water damage?
Yes. A slow drip can saturate the ground around your foundation, leading to erosion, mold, or even basement leaks. In freezing weather, dripping water can form ice dams on your siding or walkways. Prompt repair saves water and protects your home.
What if my outdoor faucet is frozen?
Never attempt to operate a frozen faucet—this can burst the pipe. Thaw it slowly with a hair dryer or heated towels, starting from the inside. If you suspect a crack, call a professional immediately. Consider installing a frost-proof faucet as a permanent solution.
How often should I replace my outdoor faucet?
Quality brass outdoor faucets can last 10–15 years with proper maintenance. If you notice corrosion, frequent leaks, or difficulty turning the handle, replacement may be more cost-effective than repeated repairs.
Is it cheaper to repair or replace a dripping outdoor faucet?
Simple washer replacement costs under $10 DIY. If the faucet body is damaged, replacement parts may cost $25–$50, plus labor. A whole new frost-proof faucet installed by a professional typically runs $150–$300, depending on complexity. Get a quote for your specific situation.
Need help with your outdoor faucet or other plumbing problems? Contact MyTownPlumber for a free estimate — our licensed technicians handle everything from minor drips to major pipe repairs.
— MyTownPlumber Editorial Team