Frozen Pipes and Water Main Breaks When Atlanta Gets a Hard Freeze

Does Atlanta get cold enough to freeze pipes?

Yes, though not often. Climate summaries put Atlanta at roughly forty freezing nights a year and a January average low near 32 degrees, a general pattern and not a measured figure for any one winter. The danger is a hard cold snap that follows a run of mild weather.

The reason a short season is a problem is that it breeds complacency. In a place where freezing nights are a few dozen a year, most houses do not think of winter as something that threatens plumbing. Homeowners do not insulate exposed lines. Outdoor faucets are left connected to hoses. Nobody knows where the main shutoff is because they have never needed it.

When a sustained freeze does arrive, the failures cluster. They start at the weakest points: a hose bib on a north wall, a line running through a vented crawl space, a pipe in an unheated attic or garage, a supply line in an exterior wall that was never insulated. The temperature does not need to be extreme. A pipe can freeze when the air around it stays below freezing for long enough, and a wind-exposed wall can be much colder than the forecast.

Climate figures in this guide are general. The annual freeze-night count and the January average came from climate summaries, not from a single weather station's record, so treat them as the shape of the season, not a number to plan around. For a specific forecast, use the National Weather Service.

What broke in the January 2025 and January 2026 cold snaps?

In January 2025, freezing weather broke several Atlanta water mains in Buckhead and around the city, including at 2151 and 2166 Peachtree Road and 200 Piedmont Avenue SE. In January 2026, breaks at Alpine Road NE and Zadie Street NW affected about 50 and about 100 homes. One break involved a 1917 cast-iron main.

The table lists breaks that local news and the city's water department reported. These are public-system failures, meaning the city's own pipes in the street, and they are different from the frozen pipes inside a house. They belong in the same guide because they happen in the same weather and have the same effect on the household: the water stops, or it floods.

One of the breaks involved a 1917 cast-iron main, which is more than a century old. Atlanta's buried pipe, like its sewers, ranges widely in age. A break under a street can cut service to dozens or hundreds of homes, and the repair crew has to find the leak, shut valves and dig, which takes time that no one can promise in advance.

Why are Atlanta houses less prepared for a freeze than houses further north?

Many Atlanta houses were built for heat, not cold. Vented crawl spaces, plumbing in exterior walls, supply lines in attics and garages and uninsulated hose bibs are all normal here, because for most winters they never matter. A house in a cold climate puts that plumbing inside the heated envelope. Many Atlanta houses do not.

The older intown bungalows of neighborhoods like Grant Park, Kirkwood and Virginia-Highland sit over crawl spaces, and the supply lines often run in the open under the floor. Those spaces are vented to keep moisture out, which also lets cold air in. Houses of that age often keep original supply lines, and a pipe that freezes and expands can split a pipe or open a joint.

Newer houses and renovations bring their own pattern. Pipes in exterior walls or attic runs may be insulated only lightly. A water heater in a garage can have exposed lines. In a multi-unit building, a vacant unit with the heat turned down can freeze a branch line that serves the whole stack, and the leak then travels down to units below. That is the shared-plumbing risk of Midtown and downtown towers and of converted lofts such as those in Castleberry Hill, where walls and stacked plumbing are shared.

The other factor is occupancy. A cold snap can land while a family is away for the holidays and the house is empty. A pipe that bursts while nobody is home keeps running until someone finds it, so a freeze that would have cost a few minutes and a mop can become a ceiling-down loss. See frozen pipe water damage for what a crew does once the water is already in the house.

• Hose bibs and outdoor faucets that stay connected to a hose.
• Supply lines in a vented crawl space, especially near foundation vents.
• Pipes in attics, garages and utility closets outside the heated envelope.
• Lines in exterior walls with little or no insulation.
• Plumbing in a vacant or closed-up unit or house.

How do you protect pipes before an Atlanta cold snap?

Disconnect and drain outdoor hoses, insulate exposed supply lines, close crawl space vents and garage doors, open cabinet doors on exterior walls, and let faucets drip on the coldest night. Most important, find your main water shutoff before you need it, and keep heat on if you travel. The preparation costs very little next to a burst line.

The National Weather Service and Ready.gov both give winter-weather advice that applies here. For Atlanta the checklist is short, because the season is short. The list below is written for the kind of cold snap the city has actually had: a few nights well below freezing, after a run of mild weather.

• Find the main water shutoff, test that it turns, and make sure everyone in the house knows where it is.
• Disconnect garden hoses and cover or insulate outdoor faucets before the first hard freeze.
• Wrap exposed supply lines in crawl spaces, attics and garages with foam pipe insulation, and seal gaps where cold air reaches them.
• On the coldest nights, open cabinet doors under sinks on exterior walls so room heat reaches the pipes.
• Let a faucet on an exterior wall drip, because moving water is harder to freeze.
• Keep the heat on, ideally at a steady temperature, if you travel. Do not turn the heat off in a vacant unit.
• Have a plumber look at lines that have frozen before, since a line that froze once will do it again.

What do you do when a pipe freezes or bursts in an Atlanta house?

If water is flowing, shut off the main valve first. If a pipe is only frozen, open the faucet and warm the pipe gently with a hair dryer or warm towels, never an open flame. If it has burst, stop the water, avoid wet electrics, photograph the damage and call a plumber for the pipe and a crew for the water.

A frozen pipe that has not split is only a blocked pipe, and warming it slowly can save it. A burst pipe is a flood, and the first job is to stop the supply. A plumber repairs or replaces the pipe, which is plumbing work that a restoration crew does not do. The City of Atlanta Office of Buildings requires a plumbing permit when the new run of concealed pipe replacing freeze-damaged or leaking pipe exceeds 5 feet, so ask the plumber how the repair will be permitted.

Frozen pipes often burst quietly, and the water appears when the thaw comes. That timing explains why calls come in after the cold night, not during it. When the pipe thaws, water sprays inside the wall or ceiling and can run for a long time before anyone sees the stain. The crew's job is to find where it went, using moisture meters and thermal tools, then extract what can be extracted, set air movers and dehumidifiers and re-check readings until the materials are dry.

Call (833) 490-5225 once the water is off. A crew is dispatched as fast as one is available, and the emergency-stage price is explained and approved before work starts. Take photos of the pipe, the damage and any wet contents before anything is moved, and call your insurer early. A sudden burst from a freeze is the kind of event a standard homeowners policy generally covers, but your policy decides, and nobody can promise an outcome. Our burst pipe water damage page covers the mitigation in more detail.

Is a water main break your problem or the city's?

The water utility generally owns the main in the street and the connection to your meter, and you generally own the line from the meter to the house. Check with the utility for your address, because Atlanta, DeKalb, Cobb and Clayton run separate systems. If water is in your house, shut off your own valve and call.

Inside the City of Atlanta, the Department of Watershed Management handles water mains and cold-weather breaks. In DeKalb County the county's Department of Watershed Management does, and Cobb County Water System and the Clayton County Water Authority serve their own areas. Report a break in the street to the utility serving that address, and ask where the dividing line between the utility's pipe and yours sits.

A main break usually shows up as a loss of pressure, a loss of water, cloudy or discolored water when service returns, or water flowing in the street. If service returns, run a cold tap until the water clears. Water that has been off may carry sediment, and the order in which lines are reopened can cause air and pressure surges inside your house, so check under sinks and around the water heater afterward for new leaks.

If the break is in the city's pipe and no water entered your house, the cleanup is the utility's concern, not yours. If water from a street break or a failed service line entered your crawl space or basement, the cleanup is a water-damage job like any other, and the same safety rules apply: stay out of standing water near electrics, and treat water that has been on the ground as contaminated. Our emergency water removal page describes the first stage.