How to Prevent Pipes from Freezing in Austin & Round Rock (Winter Plumbing Guide)

At What Temperature Do Pipes Freeze in Texas?

As we’ve seen this year in Central Texas, winter has a habit of sneaking up on us. One week it’s 70 degrees, the next there’s a hard freeze in the forecast and everyone is scrambling for faucet covers.

A common question we hear is: at what temperature do pipes freeze in Texas? In general, pipes can begin freezing when temperatures drop to 32°F, but the real risk increases when temps stay at 28°F or lower for several hours, especially overnight. Homes in Austin, Round Rock, and surrounding areas are particularly vulnerable because our plumbing systems aren’t always built or insulated for extended cold snaps.

Because our winters are usually mild, plumbing here isn’t always designed to handle prolonged freezing weather. That’s why winterizing your plumbing — even for a short cold front — matters more than people think.

We’re here to make sure you’re ready when the season inevitably rears its ugly head again.

Why Pipes Burst

When temperatures drop, water inside pipes can freeze and expand. That expansion puts pressure on the pipe from the inside, which is what causes cracks and bursts. The damage often does not show up until the ice thaws and water starts flowing again, which is why freeze related plumbing problems tend to appear all at once.

How to Prevent Pipes from Freezing

How to Protect Outdoor Plumbing from Freezing

One of the simplest and most effective ways to prevent frozen pipes in Central Texas is protecting your outdoor plumbing. Exterior components are especially vulnerable because they’re directly exposed to cold air.

Here’s what to do before temperatures drop:

• Disconnect and drain garden hoses – Leaving hoses attached can trap water inside the pipe and increase freeze risk.

• Cover outdoor faucets (hose bibs) with insulated faucet covers to reduce direct exposure to cold air.

• Drain irrigation lines to prevent water from freezing inside sprinkler pipes.

• Shut off your sprinkler system before a hard freeze and relieve pressure in the lines.

• Check exposed exterior pipes for proper insulation and add foam pipe insulation if needed.

Taking these simple steps can significantly reduce the risk of frozen or burst pipes during a Central Texas cold snap.

How to Prevent Pipes from Freezing Inside Your Home

Inside the house, the goal is to keep water moving and pipes warm — especially during a Central Texas freeze. Here are simple steps to help prevent frozen pipes:

• Let faucets drip slightly during very cold nights – Moving water helps relieve pressure inside the pipe, which reduces the risk of frozen pipes and bursting.

• Focus on faucets along exterior walls – These pipes are more exposed to cold air and are more likely to freeze.

• Open cabinet doors under sinks – This allows warm indoor air to circulate around plumbing that may otherwise sit in a cold pocket.

• Keep your thermostat consistent – Avoid lowering the temperature too much overnight during a freeze.

• Seal drafts near plumbing areas – Check for gaps around windows, doors, or foundation walls where cold air could reach pipes.

These small adjustments can make a big difference in preventing frozen pipes in Austin and Round Rock homes during a winter cold snap.

Water Heater & Irrigation Protection

Water heaters deserve attention, too — especially during a Central Texas freeze. If your water heater is located in a garage or utility space that isn’t well insulated, it’s more exposed to temperature swings and at greater risk during cold weather. Making sure the surrounding area stays above freezing and that the unit is in good working condition can help prevent water heater issues when you need hot water the most.

It’s also smart to check for existing plumbing vulnerabilities before winter hits. Small leaks, aging pipes, loose fittings, or areas with poor insulation are far more likely to fail during freezing temperatures. Addressing those issues ahead of time is much easier — and far less expensive — than dealing with burst pipes, water heater damage, or water damage repair after a hard freeze in Austin or Round Rock.

Preventative winter plumbing maintenance can make all the difference when temperatures drop unexpectedly.

Austin Freezes Are Rare — But Frozen Pipes Aren’t

The biggest misconception about winterizing plumbing in Austin is that it isn’t necessary because freezes are rare. But when freezing temperatures do hit Central Texas, they tend to hit hard — and the plumbing damage can be widespread.

Frozen pipes, burst water lines, and water heater failures often happen all at once during a cold snap. A little preparation ahead of time can save significant money, stress, and emergency plumbing repairs when temperatures dip below freezing.

Winter may not last long in Austin or Round Rock, but your plumbing system still feels the impact. Taking a few preventative steps before the next freeze helps ensure your home stays dry, functional, and protected from costly water damage.

If you’re unsure whether your plumbing system is ready for the next cold front, a quick winter plumbing inspection can provide peace of mind before temperatures fall.

Do You Need a Plumber After a Freeze?

Not all freeze-related plumbing problems are obvious right away. In fact, many frozen pipes don’t show visible damage until temperatures rise and water starts flowing again.

You may need a licensed plumber after a freeze if you notice:

• Sudden drop in water pressure

• No water coming from certain faucets

• Water stains on ceilings or walls

• Dripping sounds inside walls

• Puddles near sinks, water heaters, or exterior walls

• A spike in your water bill

Even a small crack caused by freezing temperatures can turn into a major leak once the ice thaws. If you suspect a frozen or burst pipe in Austin, Round Rock, or surrounding areas, it’s best to have it inspected before minor damage becomes costly water repairs.

When in doubt, shutting off your main water supply and calling a professional can prevent thousands of dollars in water damage.

Frequently Asked Questions About Frozen Pipes in Texas

At what temperature do pipes freeze in Texas?

Pipes can begin freezing at 32°F, but the risk increases significantly when temperatures stay at 28°F or lower for several hours, especially overnight.

Should I drip my faucets during a freeze?

Yes. Letting faucets drip slightly helps relieve pressure inside the pipe and reduces the risk of bursting during freezing temperatures.

How do I know if a pipe burst after a freeze?

Signs include low water pressure, visible leaks, ceiling stains, water sounds in walls, or water pooling near fixtures.

Are outdoor faucet covers enough to prevent frozen pipes?

Faucet covers help, but they are not foolproof during extended hard freezes in Central Texas. While insulated faucet covers add a protective layer against cold air, they work best as part of a broader freeze-protection plan — not as the only defense against frozen pipes.

How long does is take for pipes to freeze?

Pipes can begin freezing in as little as 6–8 hours when temperatures drop below 28°F, especially if they are exposed to wind or located along exterior walls. Uninsulated pipes, outdoor faucets, and irrigation lines are the most vulnerable. In Central Texas, overnight freezes are often long enough to cause frozen pipes if proper winter precautions aren’t taken.

Can a freeze damage my water heater?

Yes. If your water heater is located in a garage or uninsulated space, freezing temperatures can affect exposed water lines and components.

If you suspect frozen pipes, low water pressure, or water damage after a Central Texas freeze, don’t wait.

Schedule a winter plumbing inspection or call The Plumbinator at 512-786-1771 for professional frozen pipe repair and winter plumbing inspections in Round Rock, Austin, Hutto, Georgetown, and surrounding areas.

A quick inspection now can prevent costly repairs later — and give you peace of mind before the next cold snap rolls in.