How to Protect Your Home Plumbing Before a Houston Freeze

Houston does not get hard freezes often, but when a cold snap arrives, many homes are not built to handle it. Exposed pipes in attics, garages, crawl spaces, and exterior walls can freeze quickly, and a burst pipe can cause serious water damage. The good news is that most freeze protection steps are simple. Planning ahead before the forecast turns cold gives you time to prepare calmly.

Insulate Exposed and Vulnerable Pipes

Start with the pipes most likely to freeze. Look under sinks on exterior walls, in garages, in attics, and in crawl spaces. Foam pipe sleeves or insulation wrap can help hold in residual heat, and they are easy to install on accessible runs. Pay attention to hose bibs and outdoor faucets, which should be disconnected from garden hoses and covered with a foam cover. Seal gaps where pipes enter exterior walls so cold air is not blowing directly on them.

Keep Water Moving and Heat Flowing

During a freeze, moving water is harder to freeze than still water. Letting a faucet drip slightly, especially on the side served by exposed pipes, can help. Keep interior doors open to allow warm air to circulate, and open cabinet doors under sinks on exterior walls so heat reaches the plumbing. Keep the thermostat at a steady setting rather than letting the house cool down overnight. If you are away, ask someone to check the home or leave the heat on at a safe level.

Know Where Your Shutoff Is

If a pipe does freeze, knowing how to shut off the water quickly can limit damage. Find your main shutoff valve and make sure everyone in the household knows where it is. Test it ahead of time if you can, since older valves can be stiff. Keep a flashlight and a towel handy near the areas where pipes are most exposed. If you suspect a frozen pipe, do not try to thaw it with an open flame. Use gentle, warm heat, and call a plumber if the pipe will not thaw or if you see water leaking.

After the Cold Passes

Once temperatures recover, check for leaks, wet ceilings, unusual stains, and reduced water pressure. Freezing can crack pipes that look fine at first, and damage may show up later when the water is running again. Water heaters, shutoff valves, and fittings are worth a close look as well. If anything seems off, a professional inspection can help you find hidden damage before it becomes costly. A free estimate is a good way to talk through your options if you are not sure what to check.

Frequently Asked Questions

Related articles