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Frozen pipes in San Antonio, Texas

How to protect your pipes before a freeze in San Antonio, what to do if a pipe freezes or bursts, and a text when the National Weather Service issues a freeze warning for San Antonio. Each step names its official source below.

  • 14.0freeze nights a year
  • Nov 28typical first freeze
  • Feb 26typical last freeze

Freezes typically come between Nov 28 and Feb 26

Typical freeze season in San Antonio: first freeze Nov 28, last freeze Feb 26; 14.0 nights at or below 32°F a year.Nov 28first freezeFeb 26last freezeOctNovDecJanFebMarApr
Typical first and last freeze. NOAA U.S. Climate Normals 1991–2020, San Antonio Intl Ap.

Shut the water off Cierre el agua

Shut the water off

If you suspect a leak, shut off the main water service to your home.

Before a freeze

  1. Protect exposed pipes

    Use foam or fiberglass insulation sleeves to keep exposed pipes safe.

  2. Let faucets drip

    Letting faucets drip slowly to keep water flowing through pipes is not ideal, but it can help.

  3. Open cabinet doors

    Leave cabinet doors open under the kitchen and bathroom sinks to allow warmer room air to circulate over the pipes.

  4. Know your shutoff

    Be sure you know where and how to shut off your water at the meter and be prepared to turn it off if your pipes start leaking.

If a pipe freezes or bursts

  1. If a pipe bursts

    If you suspect a leak, shut off the main water service to your home and contact a plumber to make the repairs.

  2. Before you warm a frozen pipe

    Keep the faucet open.

  3. Warming the pipe

    Use a heating pad, electric hair dryer, a portable space heater, or wrapping pipes with towels soaked in hot water.

  4. When to call a plumber

    Call a licensed plumber if you are unable to locate the frozen area, if the frozen area is not within reach, or if you can’t get the pipe to thaw.

  • Make sure that electrical cords do not come into contact with water and do not use a blowtorch, kerosene or propane heater, charcoal stove, or other open flame devices.

How often it freezes in San Antonio

14.0freeze nights a yearAt or below 32°F, on average.
Typical freeze season in San Antonio: first freeze Nov 28, last freeze Feb 26; 14.0 nights at or below 32°F a year.Nov 28first freezeFeb 26last freezeOctNovDecJanFebMarApr
Weather stationSAN ANTONIO INTL AP, TX US (NOAA USW00012921)
Freeze riskTypical first freeze Nov 28; last Feb 26; 14.0 nights at or below 32°F a year

Who to call at the utility

UtilitySan Antonio Water System
Phone210-704-SAWS (7297)
What it's forTo report a leak that appears to come from the SAWS water or sewer system.
Hours24 hrs / 7 days a week

Get a call back

Leave your number and we'll call you back to help you find one. This isn't an emergency line: if water is running, shut it off first.

Get a text when a freeze warning is issued

We'll text you when the National Weather Service issues a freeze warning for San Antonio, with what to do for your pipes.

Sources

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