Short Answer
An outdoor faucet leaking at the handle usually needs the packing nut tightened or the packing replaced. A drip from the spout means a worn washer or seat. A leak from the vacuum breaker means that part is fouled. Water inside the wall after a freeze means the faucet split and must be replaced.
An outdoor faucet leaking is easy to ignore because the water ends up in the yard. But where the water comes out tells you which part failed, and some failures hide a bigger problem behind the wall. Repipe Solutions is a licensed Houston plumbing company that repairs and replaces hose bibbs and frost-proof sillcocks across Greater Houston. This guide covers each type of outside faucet leak, what you can fix yourself, and when to replace the spigot.
Where Is Your Outdoor Faucet Leaking From?
Run the faucet with and without a hose attached and watch where the water shows up.
| Where It Leaks | Likely Cause | Usual Fix |
|---|---|---|
| Around the handle stem while the water is on | Loose packing nut or worn packing | Snug the packing nut, then replace the packing if it keeps leaking |
| Out of the spout when the faucet is off | Worn seat washer, loose retainer screw, or a damaged seat | Replace the washer; replace the faucet if the seat is damaged |
| From the cap on top of the faucet while it is on | Fouled or damaged built-in vacuum breaker | Clean it or install the maker’s vacuum breaker kit |
| Where the hose threads on | Missing or worn hose washer | New hose washer and a snug connection |
| Inside the wall, or only after a freeze | Split tube or pipe from ice | Replace the faucet and check the pipe behind it |
The leak locations above follow the troubleshooting guide for the Woodford Model 17 frost-free faucet and the outdoor faucet repair steps from Saving Water Partnership. The same logic applies to standard hose bibbs.
Leaking at the Handle: The Packing Nut
If water seeps out around the stem behind the handle only when the faucet is running, the packing has stopped sealing. This is the easiest leaky outdoor faucet to fix.
- Find the hex nut directly behind the handle. That is the packing nut.
- With the faucet off, turn it clockwise with a wrench until it is just snug. Do not crank on it.
- Turn the faucet on and check. Woodford’s instructions say this alone stops most packing leaks without removing any parts.
- If it still leaks, the packing itself is worn and needs to be replaced. That means shutting the water off and taking the stem apart, covered in the next section.
Indoor faucets that leak at the handle usually have a worn cartridge instead. For those, see our handle leak guide.
How to Fix a Leaky Outdoor Faucet That Drips From the Spout
A spigot that drips after you shut it off has a seat washer that no longer seals. Houston’s hard water speeds this up by roughening the seat. To replace it on a standard hose bibb, based on the steps from This Old House and Saving Water Partnership:
- Shut off the water first. Some homes have a separate valve for the outdoor faucet. If yours does not, close the main shutoff to the house. Never take a faucet apart under pressure.
- Open the faucet to drain the water left in it and confirm the supply is off.
- Remove the handle screw and handle, then loosen the packing nut counterclockwise with a wrench.
- Unscrew the stem and pull it out.
- Replace the washer at the end of the stem. It is held by a small brass screw. Take the old one to the store to match the size, and replace the packing while it is apart.
- Reinstall the stem, tighten the packing nut until snug without overtightening, and turn the water back on.
If it still drips with a new washer, the seat is likely pitted. This Old House notes a reseating tool can smooth a damaged seat. Woodford takes a firmer line on its frost-free models: if a new seat rubber does not stop the drip, the seat is damaged and the faucet needs to be replaced.
Frost-free faucets come apart differently
On a frost-free sillcock, the washer sits at the far end of a long rod, inside the house. Per Woodford, you shut off the water, back out the packing nut, use the handle to turn the rod counterclockwise until it releases from the seat, and pull the whole rod out. Buy the repair kit made for your exact brand and model.
Leaking From the Vacuum Breaker or Hose Connection
Many outdoor faucets have a vacuum breaker, either built in (a small cap on top of the faucet body) or screwed onto the spout. If water spits from that cap while the faucet is running, Woodford says the vacuum breaker is fouled or damaged. It can be pried open, checked for debris, and replaced with the maker’s float kit.
Woodford’s product sheet also says its anti-siphon faucet should not stay under continuous pressure for more than 12 hours, so turn the faucet off after watering instead of leaving a closed nozzle on the hose.
A leak only at the threads where the hose attaches is usually the hose, not the faucet. The EPA’s WaterSense program recommends replacing the rubber or nylon hose washer and tightening the connection to the spigot with pipe tape and a wrench.
Outside Faucet Leaking Inside the Wall After a Freeze
This is the leak that does real damage. Houston freezes are rare, but they happen. During the February 2021 winter storm, ABC13 reported 44 straight hours below freezing and a low of 13 degrees.
A frost-free faucet only works if it can drain. Woodford’s explanation of how a frost-proof faucet works lays out what goes wrong:
- The shutoff valve is several inches inside the house, where it stays warm. When you close it, the water in the tube drains out the spout.
- A hose left attached, or a faucet installed without a downward slope, traps water in the tube.
- That water freezes from the outside in. With the valve closed, the pressure has nowhere to go, and the tube bursts.
- Only a few drops come out at the time. Because the split is past the shutoff valve, nothing leaks until the next time someone turns the faucet on, which may be weeks later.
Woodford’s troubleshooting sheet is blunt about it: if the faucet leaks from inside the wall when it is on, the faucet must be replaced. If you see water on the wall below it or a damp spot inside, stop using it and shut off its water until it is replaced.
On a standard hose bibb, the whole valve sits outside, so a freeze can crack the body or the pipe behind it.
Repair or Replace Your Outdoor Faucet Spigot?
Repair it if the leak is at the packing, washer, vacuum breaker, or hose connection and nothing is cracked. Those are inexpensive parts.
Replace it when:
- It leaks inside the wall or froze and split
- It still drips after a new washer, meaning the seat is damaged
- The body is cracked or heavily corroded, or the handle spins without shutting off
- It is an old standard bibb with no backflow protection, and you want an anti-siphon, frost-free model
How to Replace an Outdoor Faucet: What Is Involved
- Threaded hose bibbs can often be unscrewed and swapped with thread tape on the new one. Hold the pipe behind it steady so it does not twist inside the wall.
- Frost-free sillcocks come in sweat (solder), threaded, and PEX connections, and in lengths matched to wall thickness. Woodford’s Model 17 sheet lists sizes from 4 to 24 inches and says to specify the wall thickness when ordering.
- Slope matters. Woodford’s installation instructions require a slight downward pitch toward the nozzle and the water connection in a heated space. If the new faucet does not drain, it can freeze and burst the same way the old one did.
- Soldering needs a torch inside a wall cavity, which is a fire risk. Bob Vila recommends removing the stem before soldering, and Woodford says to open the faucet fully, because heat can ruin the seat rubber. If your connection is soldered copper and you have not sweated pipe before, this is the point to call a plumber.
Anti-siphon protection is required by code
The Texas residential code (IRC 2021 Section P2902.4.3) requires sillcocks, hose bibbs, and wall hydrants to be protected by a vacuum breaker. The reason is backsiphonage. The City of Kerrville points to a chemical sprayer on a hose as a common hazard: if water pressure drops, what is in the hose can be pulled back toward the drinking water. Anti-siphon faucets have this built in. A plain bibb needs an inexpensive screw-on vacuum breaker.
How Much Does It Cost to Replace an Outdoor Faucet?
| Job | Typical Cost | Source |
|---|---|---|
| DIY washer or packing repair | $5 and up in parts | This Old House |
| Outdoor faucet repair by a pro | $50 to $300 (about $155 typical) | Fixr |
| Hose bib replacement | $200 to $600 (about $300 average) | HomeAdvisor |
| Frost-free faucet installed | $150 to $500 (about $350 average) | HomeAdvisor |
In Greater Houston, Repipe Solutions typically charges $150 to $500 to swap a standard hose bibb and $250 to $500 to put in a frost-proof sillcock. Access and any freeze damage behind the wall affect the price, which we quote before starting. Full pricing is on our faucet repair and installation page.
Preventing Outdoor Faucet Leaks in Houston
- Disconnect hoses before a freeze. Woodford calls this essential for frost-free faucets.
- Check the hose washer each spring and replace it if it is flattened or cracked.
- Look at the wall below each faucet after any freeze, and run the faucet briefly to check for water where it should not be.
When to Call a Plumber
Call a licensed plumber if the faucet leaks inside the wall or after a freeze, if it still drips after you replace the washer, if you cannot shut off the water to it, if the pipe behind it moves or looks corroded, or if the replacement needs soldering.
Frequently Asked Questions
Why does my outdoor faucet only leak when the hose is attached?
Usually the hose washer is worn or missing, or the hose is not tight on the threads. If water comes from the top of the faucet instead, the vacuum breaker is fouled.
Is it normal for a frost-free faucet to dribble after I turn it off?
A short dribble, yes. Woodford says water in front of the valve drains out of the faucet when it is shut off. A drip that keeps going points to a worn seat rubber.
Can I leave a hose on a frost-free faucet in winter?
No. Woodford warns that a hose left on during freezing weather traps water in the faucet, which can freeze and burst the tube inside the wall.
Does an outdoor faucet need a vacuum breaker in Texas?
Yes. Texas IRC 2021 Section P2902.4.3 requires backflow protection on sillcocks, hose bibbs, and wall hydrants. Anti-siphon models have it built in.
What length frost-free sillcock do I need?
Match it to your wall thickness so the valve ends up inside the heated space. Woodford sells its Model 17 in lengths from 4 to 24 inches.
How can I tell if my outside faucet is leaking inside the wall?
Look for water running down the siding below the faucet, a damp interior wall or baseboard, or weak flow at the spout when the faucet is on.
Need an Outdoor Faucet Fixed in Houston?
Repipe Solutions repairs leaking hose bibbs and replaces freeze-damaged faucets with frost-proof, anti-siphon sillcocks across Greater Houston. We are licensed, quotes are free with no trip charge, and same-day appointments are available. See our faucet repair and installation services in Houston or contact Repipe Solutions to schedule a visit.
Featured photo: “Garden faucet” by nenadstojkovicart via Openverse, licensed under CC BY 2.0, converted to WebP.