When temperatures drop, one of the most vulnerable parts of your home’s plumbing system is the outdoor faucet. A single freeze can cause pipes to expand, burst, and lead to costly water damage. That’s why plumbers never skip a crucial step before a cold snap: properly winterizing outdoor faucets. This simple preparation protects your home, saves money, and ensures your plumbing stays in top shape throughout the winter season.
Winterizing isn’t complicated, but it’s highly effective. Whether you live in a region with harsh winters or occasional freezing nights, knowing what plumbers do—and how to replicate it—can make all the difference. Here are the essential steps plumbers take to safeguard outdoor faucets before freezing weather arrives.
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The One Thing Plumbers Always Do to Outdoor Faucets Before a Freeze
They Shut Off the Interior Water Supply to Outdoor Faucets
Plumbers begin by turning off the interior shutoff valve that controls water flow to the outdoor faucet. This prevents any additional water from entering the exterior pipe, which is the most exposed to freezing temperatures. By shutting off this valve, plumbers eliminate the risk of water sitting in the line where it could freeze, expand, and eventually burst the pipe. This single action is one of the most effective ways to protect your plumbing.
Once the valve is turned off, plumbers move to the next stage: draining the line completely. Even a small amount of water trapped inside can freeze, so cutting off the supply and emptying the pipe ensures nothing is left behind. Many homeowners skip this step, but plumbers know it’s the foundation of proper winterization.
They Drain Any Remaining Water from the Faucet
After the water supply is turned off, plumbers open the outdoor faucet to allow any remaining water to flow out. This step is critical because even a few tablespoons of water can freeze and cause pressure buildup inside the pipe. Draining the faucet fully ensures the entire outdoor plumbing line is as dry as possible before temperatures fall.
Plumbers often leave the faucet slightly open for a short time to make sure all residual water drips out. In some cases, they may also open the bleeder valve (if available) on the interior shutoff to release water trapped between the indoor valve and the outdoor faucet. This thorough approach prevents hidden freeze points and ensures the pipe is truly empty.
They Disconnect and Drain Garden Hoses
One of the most common mistakes homeowners make is leaving hoses connected during winter. Plumbers always disconnect hoses before a freeze because a hose traps water inside the faucet connection, increasing the risk of freezing. When water becomes trapped, it can expand back into the faucet and supply line, leading to damaging splits or cracks.
After disconnecting the hose, plumbers drain it completely and store it indoors or in a sheltered area. Keeping hoses dry and insulated also extends their lifespan and prevents cracking due to ice expansion. This simple step protects both the hose and the outdoor faucet—one reason plumbers never overlook it.
They Install or Check the Faucet Cover
To provide extra protection, plumbers install insulated faucet covers over outdoor spigots. These covers help block cold air and create a pocket of warmth around the faucet, reducing the risk of freezing even in harsh temperatures. They’re inexpensive and easy to install, yet they add an important layer of defense.
Plumbers also check for signs of wear or damage on existing covers and replace them if needed. Even a small tear can let freezing air penetrate and compromise the faucet’s protection. Installing a durable, weather-resistant cover is an essential finishing touch in a professional winterization routine.
They Inspect for Leaks or Drips Before Freezing Weather Hits
Before finishing the job, plumbers check for any leaks or slow drips around the outdoor faucet. Even a tiny drip can signal that water is still entering the pipe, which increases the chance of freezing. A thorough inspection ensures that the faucet is completely sealed and ready to endure cold weather without issues.
If they find a leak, plumbers may repair or tighten connections immediately. Addressing these issues before the freeze not only prevents winter damage but also avoids unnecessary water waste. This preventive step ensures your faucet and plumbing system start the winter season in the best possible condition.
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