Frozen Pipes in Atlanta: Why Georgia Homes Burst Every Winter (and How to Prevent It)

Minnesota houses rarely burst pipes. Atlanta houses do it every time the temperature drops into the teens, because our plumbing was never built for it. Here is why, what to do in the ten minutes before a freeze, and what to do in the ten minutes after a pipe lets go.

Why Georgia homes burst more than cold-climate homes

In Minneapolis, water lines run through heated interior walls and basements because builders have to. In Gwinnett, Cobb, DeKalb and North Fulton they often run through:

• Vented crawl spaces, where winter air moves freely across uninsulated copper, CPVC and PEX.
• Attics, where many newer homes put the water heater and HVAC, and where the temperature tracks the outdoors.
• Garages, with the water heater or a utility sink on an uninsulated exterior wall.
• Exterior walls behind kitchen and bathroom sinks, often with the insulation on the wrong side of the pipe.
• The front yard: the irrigation backflow preventer stands above ground in the open, full of water, all winter.

Add a region where people reasonably do not think about freezing, and a hard freeze does what it did on Christmas weekend 2022, in January 2024, and again over the last weekend of January 2026 — when a burst pipe disrupted water service inside Hartsfield-Jackson and freeze-thaw damage closed public buildings from Bartow County to Smyrna. Restoration companies across the metro run at capacity for a week after every one of them.

How cold, for how long

Water in a pipe needs sustained cold, not a brief dip below 32°F. The common rule of thumb for Southern homes is that uninsulated pipes in unheated spaces are at risk when temperatures stay below about 20°F for six hours or more. Wind makes it worse by pushing cold air through crawl-space vents and gaps. Atlanta hits that threshold in most winters, usually once or twice, usually in January. The forecast gives a day or two of warning. That is the window.

The 10-minute prep before a hard freeze

1. Disconnect hoses and cover hose bibs. A connected hose traps water in the spigot and the pipe behind it. Foam faucet covers cost a few dollars at any hardware store on Peachtree Industrial.
2. Shut off and drain the irrigation system. Close the irrigation shut-off valve, open the test cocks on the backflow preventer so water can escape, and wrap the backflow assembly in insulation or a cover. A split backflow preventer sprays water across the yard for hours and can drop pressure to the whole house.
3. Drip faucets on exterior walls. A slow drip from both hot and cold keeps water moving and relieves the pressure that actually bursts pipes. Target faucets on outside walls and anything in a garage or over a crawl space.
4. Open cabinet doors under kitchen and bathroom sinks so room heat reaches the pipes.
5. Keep the thermostat at 55°F or higher, day and night, even if you are out of town. Yes, the gas bill goes up. A finished basement rebuild costs more.
6. Close crawl-space vents for the duration of the freeze and reopen them after.
7. Know where your main shut-off is and make sure it actually turns. In many metro Atlanta homes it is in the crawl space, basement or garage where the line enters; the meter box at the street has a valve as a backup.
8. If you will be away more than a few days, shut the main off and open a few faucets to drain the lines.

Longer-term fixes

• Insulate exposed pipes in the crawl space, attic and garage with foam sleeves. An afternoon’s work; the single best return in this article.
• Seal the crawl space or at least air-seal the band joist. Encapsulated crawl spaces stay warmer and dryer, which also helps with mold in summer.
• Install frost-proof hose bibs that shut off inside the heated wall.
• Add a leak detector or smart shut-off valve. Whole-home valves close automatically on a pressure drop or sensor alarm. For a house with an attic water heater, this is cheap insurance.
• Relocate attic water heaters at replacement time, or at least add a pan with a drain and a leak alarm.

If a pipe freezes but has not burst

You turn on a faucet and get a trickle or nothing. The pipe is frozen somewhere between the meter and that faucet.

• Leave the faucet open. As the ice melts, moving water helps clear it and relieves pressure.
• Find the frozen section — usually where the pipe passes through an exterior wall, crawl space or attic — and warm it with a hair dryer, a heating pad, or towels soaked in hot water. Start at the faucet end and work back.
• Never use an open flame, a propane torch or a space heater left unattended on a pipe. Every winter someone starts a fire trying to thaw a pipe.
• If you cannot find it or reach it, call a plumber. Keep the main shut-off handy; a frozen pipe may already be split and will leak the moment it thaws.

If a pipe has burst

1. Close the main shut-off. Water will keep coming at full pressure until you do. If the valve is stuck, the meter box at the street has a valve a wrench will close.
2. Cut power to wet rooms at the breaker. If the water is near the panel, stop and call for help.
3. Open faucets to drain the lines and relieve pressure.
4. Photograph and video everything before you move or mop anything — the split pipe, the water, the damage.
5. Call your insurer and a restoration company. A burst pipe is covered by nearly every Georgia homeowners policy. The plumber fixes the pipe; the restoration crew dries the structure and documents it. The full first-24-hours checklist.

Where the water goes in a Georgia house

A crawl-space burst soaks insulation and subfloor from below; you may not see it from inside until the floor cups or the house smells musty. An attic burst comes through ceilings — a sagging, bubbled ceiling is holding water and should be relieved by a professional, not poked. A garage burst runs under the wall into the finished rooms next to it. In every case the water travels further than it looks, and finding it is a job for a moisture meter, not a flashlight. Our water damage repair and drying pages explain how we trace it and dry it.

Frequently asked questions