If your outdoor water faucet is leaking or won’t shut off, you can often repair it yourself without calling a plumber. This guide on how to repair outside water faucet will walk you through the most common fixes and when to call a professional. Whether you have a frost-free or standard hose bib, we cover the tools, steps, and safety precautions you need.
Common Causes of Outdoor Faucet Leaks
Outdoor faucets, also called hose bibs or spigots, can develop leaks for several reasons. Understanding the cause helps you choose the right repair method.
- Worn-out washer or O-ring – The rubber seal inside the handle degrades over time, causing drips at the spout.
- Corroded valve seat – Mineral deposits or rust can prevent the valve from closing fully.
- Cracked or frozen pipe – In cold climates, water left in the pipe can freeze and crack the faucet body or the line behind it.
- Loose packing nut – A leak around the handle stem often means the packing nut needs tightening or the packing material needs replacement.
- High water pressure – Excessive pressure can force water past seals and cause persistent drips.
Tools and Materials You’ll Need
Before starting, gather the following tools and replacement parts. Most can be found at any hardware store.
- Adjustable wrench or pliers
- Screwdriver (flathead and Phillips)
- Replacement washer or O-ring kit (check faucet type)
- Teflon tape (plumber’s tape)
- Pipe dope (optional)
- Bucket or towel for water spills
- Propane torch (if thawing frozen pipes)
- Frost-free faucet repair kit (for frost-free models)
Step-by-Step Repair Guide
Follow the steps below based on your faucet type. Always shut off the water supply to the outdoor faucet before making any repairs. The shut-off valve is usually located in the basement, crawl space, or garage on the pipe leading outside.
Repairing a Standard Outdoor Faucet
A standard faucet does not have a long stem that extends into the house. Leaks often originate from the handle or the spout.
- Turn off the water supply – Locate the indoor shut-off valve and close it. Open the outdoor faucet to drain any remaining water.
- Remove the handle – Unscrew the handle screw and pull off the handle. Some handles have a decorative cap that pries off.
- Unscrew the packing nut – Use a wrench to loosen the nut that holds the stem in place. Be careful not to damage the threads.
- Remove the stem – Pull the stem assembly straight out. Inspect the rubber washer at the bottom of the stem. If it is cracked or flattened, replace it with a matching washer from your kit.
- Replace the O-ring – If the leak was around the handle, the O-ring on the stem may be worn. Swap it for a new one lubricated with silicone grease.
- Reassemble and test – Reinsert the stem, tighten the packing nut (hand-tight plus a quarter turn with a wrench), replace the handle, and turn the water back on. Check for leaks.
Repairing a Frost-Free Faucet
Frost-free faucets have a long stem that places the shut-off valve inside the heated part of the home. They are designed to prevent freezing but can still leak. Common fixes include replacing the vacuum breaker or the entire stem cartridge.
- Shut off water and drain – Close the indoor valve and open the outdoor faucet to drain.
- Remove the faucet from the wall – Most frost-free faucets are threaded into a wall bracket. Use a pipe wrench to unscrew the entire faucet body. Note: the pipe behind may be soldered – if so, skip this step and work from the spout end.
- Replace the vacuum breaker – A leak from the spout when the faucet is turned on often indicates a failed vacuum breaker. Unscrew the cap at the discharge end and replace the rubber seal or the entire breaker assembly.
- Install a new stem kit – If the faucet still drips, replace the internal stem cartridge. Follow the manufacturer’s instructions for your specific model. Many brands sell universal repair kits.
- Reattach and test – Apply Teflon tape to the threads and screw the faucet back into the wall bracket. Tighten securely, turn on the water, and test for leaks.
When You Need to Replace the Entire Faucet
If the faucet body is cracked or corroded beyond repair, replacement is the safest option. The cost to install a new outdoor faucet in the US typically ranges from $150 to $400, though prices vary by region and material. A professional plumber can ensure the connection complies with local plumbing codes.
Comparison of Outdoor Faucet Types
Choosing the right repair method depends on your faucet type. The table below summarizes the key differences.
| Feature | Standard Faucet | Frost-Free Faucet |
|---|---|---|
| Valve location | Inside the faucet body (outside) | Inside the home (behind the wall) |
| Freeze protection | None – must be drained manually | Self-draining when installed with a slope |
| Common repairs | Washer, O-ring, packing nut | Vacuum breaker, stem cartridge |
| Tools | Basic wrenches and screwdrivers | Pipe wrench, faucet repair kit |
| DIY difficulty | Easy to moderate | Moderate to hard |
Preventive Maintenance and Winterization
To avoid needing to repair your outside water faucet again soon, follow these tips:
- Disconnect garden hoses before the first freeze.
- Install a faucet cover for added insulation in winter.
- Inspect washers and O-rings annually and replace if cracked.
- Keep the supply line shut-off valve accessible and turn it off during extreme cold.
- Check for leaks after any temperature swing.
When to Call a Professional Plumber
Some outdoor faucet problems require professional attention. You should call MyTownPlumber if you experience any of the following:
- Water damage inside the wall behind the faucet.
- Low water pressure from the outdoor faucet (could indicate a buildup or pipe issue).
- You cannot locate the indoor shut-off valve.
- The pipe is soldered and requires cutting and re-soldering.
- You suspect a slab leak or underground pipe break.
Our team offers leak detection services to find hidden water issues, pipe repair for damaged lines, and water heater repair if the problem extends to your hot water system. We handle everything from simple faucet repairs to full sewer line repair.
Frequently Asked Questions
Why is my outdoor faucet still leaking after I replaced the washer?
If the leak continues, the valve seat inside the faucet may be rough or pitted. Use a valve seat tool to smooth the seat, or replace the entire stem assembly. Another possibility is that the new washer is not the correct size – bring the old washer to the hardware store for a match.
Can I repair a frost-free faucet without removing it from the wall?
Yes, if the leak is only from the spout (vacuum breaker) or the handle stem (packing nut), you can often replace those parts without unscrewing the entire faucet. However, for internal cartridge repairs, removal is usually easier.
How do I know if my outdoor faucet is frost-free?
Frost-free faucets have a longer body (typically 6–12 inches) and the handle is often angled upward. When the faucet is closed, the water shuts off inside the home, not at the spout. You can also check the manufacturer’s label on the faucet.
Is it safe to use Teflon tape on outdoor faucet threads?
Yes, Teflon tape is safe for metal and plastic threads. It helps create a watertight seal. Apply two to three wraps in the direction of the threads (clockwise) before screwing the faucet back onto the pipe.
How often should I replace the washers on an outdoor faucet?
Every one to two years, or sooner if you notice drips. Regular inspection during spring and fall can prevent unexpected leaks.
Can a leaking outdoor faucet cause high water bills?
Absolutely. A slow drip can waste hundreds of gallons per month. According to the EPA WaterSense program, a faucet leaking one drip per second can waste over 3,000 gallons per year. Repairing it promptly saves water and money.
Get Professional Help When You Need It
While many outdoor faucet repairs are DIY-friendly, some situations demand a licensed plumber. If you’re unsure about any step or encounter unexpected complications, don’t risk water damage to your home. Contact MyTownPlumber for a fast, reliable repair. Check out our current plumbing service offer and schedule an appointment today. Our technicians are trained to handle all types of faucet repairs, from standard hose bibs to frost-free models, and can also assist with related plumbing needs such as drain cleaning and sump pump maintenance.
— MyTownPlumber Editorial Team