A Plano homeowner discovered their outside spigot had cracked internally during a freeze when water started pouring through the brick wall near their foundation. This common North Texas winter plumbing issue occurs when frost-free hose bibs aren’t properly winterized, causing hidden damage inside the wall that only becomes visible when the spigot is turned on, even though the exterior looks completely normal.
A Plano homeowner called us on a cold morning with a problem they’d never seen before. They turned on their outside spigot to water some plants, and within seconds, water started pouring through the brick near the foundation. When they shut the spigot off, the leak stopped completely. Turn it on again, and water came gushing back through the wall.
This is one of the most common winter plumbing problems we see in North Texas, and it catches homeowners completely off guard. The spigot looks fine from the outside. No visible cracks, no dripping when it’s turned off. But the damage happened inside the wall during the last freeze, and now water is leaking where you can’t see it.
Here’s exactly what happened on this service call, how we fixed it, and what you need to do before the next freeze hits Frisco, Plano, or McKinney.
What Went Wrong: A Frost-Free Spigot That Wasn't Protected
The homeowner had what’s called a frost-free hose bib installed on the exterior wall. These are designed specifically for cold climates, and they’re supposed to prevent freeze damage. The key difference is the length of the stem.
A regular outdoor spigot has the valve seat right at the wall. When you turn it off, water sits in the short pipe between the valve and the spigot opening. In freezing weather, that water turns to ice, expands, and cracks the pipe or valve body.
A frost-free hose bib has a long stem, sometimes 12 to 18 inches, that extends through the wall into the heated part of the house. The actual valve seat is inside where it’s warm. When you shut it off, water drains out of the long stem through the spigot opening, leaving the pipe empty and protected from freezing.
That’s the theory. Here’s what actually happened.
When we arrived and inspected the spigot, we found the internal valve components had cracked during the winter freeze. The homeowner had left a hose connected to the spigot during cold weather. With the hose attached, water couldn’t drain out of the stem like it’s supposed to. Instead, it stayed trapped in the pipe, froze solid, expanded, and cracked the valve seat inside the wall.
The symptoms were textbook. When the spigot was turned on, water pressure pushed through the cracked area and leaked into the wall cavity. Because the crack was on the pressure side of the valve, no water leaked when the spigot was off. The water found its way through the brick mortar joints and weep holes, appearing at the foundation.
This is extremely common in Frisco, Plano, McKinney, and surrounding areas. We’ve documented similar cases in our outside spigot replacement work throughout the region. We typically see several hard freezes each winter, and every year we replace dozens of frost-free spigots that failed because a hose was left connected or the spigot wasn’t properly insulated.
How We Fixed the Cracked Outside Spigot
Once we confirmed the frost-free spigot had failed internally, the solution was straightforward. We had to replace the entire unit.
First, we shut off the water to the whole house so we could work safely. If you don’t do that, the line is under pressure and it will just keep flooding inside. Then we opened the spigot to drain whatever water was left in the line.
Next, we removed the damaged frost-free hose bib. These units are typically soldered or threaded into a copper or PEX supply line inside the wall. We accessed the connection point, disconnected the old spigot, and pulled it out through the exterior wall.
We installed a new frost-free hose bib, making sure the valve seat would be positioned well inside the heated portion of the house. Proper installation is critical. If the spigot isn’t angled slightly downward toward the outside, water won’t drain properly even when the hose is disconnected. You can learn more about our hose bib repair services for the Frisco and Plano area.
After securing the new spigot and sealing the exterior penetration, we turned the water supply back on and tested the system. We opened and closed the spigot several times, checking for leaks both inside and outside. We also inspected the wall cavity as much as possible for signs of water damage or ongoing moisture issues.
The repair itself took about an hour. The bigger concern was what had already happened inside that wall.
Winterizing Your Outside Spigots Before the Next Freeze
This entire situation could have been prevented with basic winterization. Here’s what every homeowner in North Texas needs to do before cold weather arrives.
First, disconnect all hoses from outdoor spigots. This is the single most important step. Even if you have frost-free hose bibs, leaving a hose connected traps water in the stem and defeats the entire freeze protection design. Remove hoses, drain them, and store them in the garage or shed.
Second, use insulated faucet covers on all outdoor spigots. You can buy these foam or fabric covers at any hardware store for a few dollars. They provide an extra layer of protection during hard freezes. Slip them over the spigot and secure them with the attached drawstring or elastic band.
Third, if you have regular outdoor spigots (not frost-free), you need to shut off the interior supply valve and drain the line completely. Open the outdoor spigot and leave it open all winter so any remaining water can expand without breaking the pipe. If you’re unsure where your shutoff is located, our guide on how to shut off your main water valve covers everything you need to know.
Fourth, know where your main water shutoff valve is located. If a pipe does burst or a spigot starts leaking, you need to be able to shut off the water to your entire house immediately. Find that valve now, make sure it turns easily, and show everyone in your household where it is.
In Frisco, Plano, McKinney, Allen, Little Elm, and Prosper, we typically see freezing temperatures several times between December and February. Even a few hours below freezing can cause damage if your spigots aren’t protected. It’s worth spending 15 minutes in the fall to winterize everything properly.
One more thing: if you have an outdoor irrigation system, make sure it’s been professionally winterized with compressed air to blow out all the lines. Sprinkler system pipes run underground and can burst just like indoor plumbing if water freezes inside them.
When to Call a Water Restoration Company
After we replaced the cracked spigot, we had an important conversation with the homeowner about water damage inside the wall.
Water had been leaking into the wall cavity every time they turned on the spigot. Even though they shut it off as soon as they saw the leak, moisture had already penetrated the wall structure. Water doesn’t just disappear. It soaks into wood framing, insulation, and drywall.
We recommended they contact a water restoration company to inspect the affected wall. These companies have moisture meters and thermal imaging cameras that can detect hidden water damage you can’t see with your eyes. They can measure moisture levels in the drywall, studs, and insulation to determine if professional drying is needed. For more information about detecting hidden leaks, check out our water leak detection services.
Why does this matter? Because moisture trapped inside a wall creates the perfect environment for mold growth. Mold can start developing within 24 to 48 hours of water exposure. Once it takes hold in wall cavities, it can spread to other areas of the house and create serious health and structural problems.
Signs that water damage may have spread beyond the immediate area include discoloration on interior walls, soft or spongy drywall, musty odors, or visible mold growth. If you notice any of these, don’t wait. Water damage gets worse over time, not better.
A water restoration company can also help with insurance claims if the damage is extensive enough to warrant a claim. They document everything, take moisture readings, and provide detailed reports that insurance companies accept.
In this case, the homeowner caught the problem relatively quickly, so the water intrusion was limited. But we’ve seen situations where spigots leaked inside walls for weeks or months before anyone noticed, causing thousands of dollars in damage. Similar hidden leak issues can occur with shower valve leaks that go undetected behind walls.
Protect Your Home Before the Next Freeze
Freeze damage to outside spigots is completely preventable. Disconnect your hoses, add insulated covers, and make sure your frost-free hose bibs are installed correctly and angled properly.
If you’re looking for a Frisco plumber , Plano, McKinney, or nearby North Texas communities and you notice any leaks around your outdoor spigots, don’t ignore them. A small leak can turn into major water damage inside your walls. We can replace damaged spigots, upgrade old ones to frost-free models, and make sure everything is properly winterized before the next cold snap.
And if you’ve already had a leak, take the water damage seriously. Have the wall inspected by professionals who can detect hidden moisture and prevent mold problems down the road.
At FPP Plumbing, we handle these freeze-related repairs every winter. We’re available 24/7 for emergency calls, and we’ll get your outdoor plumbing fixed right the first time. Learn more about our services or give us a call if you need help with your outdoor spigots before winter arrives.
Why does my spigot leak only when I turn it on?
Because the pipe inside the wall is cracked, so water leaks only when pressure is on.
Can a frost-free spigot still freeze and break?
Yes. If it’s not winterized or installed wrong, it can still freeze and crack.
Is a leaking outdoor spigot a big problem?
Yes. It can cause water damage inside the wall and lead to mold if not fixed.
