The short answer
Atlanta's occasional hard freezes cause a wave of burst pipes precisely because homes here aren't built for deep cold. The fixes are simple and cheap: protect exposed pipes and outdoor spigots before a freeze, keep a trickle running on the coldest nights, and know where your main shutoff is if a pipe does burst.
Why do Atlanta pipes freeze and burst?
In colder climates, pipes are routed deep inside insulated walls. In metro Atlanta, builders often run pipes through uninsulated crawl spaces, exterior walls, garages, and attics, because hard freezes are rare. When a sharp freeze does hit, that exposed pipe is vulnerable — and water expands as it freezes, which is what splits the pipe.
The damage often isn't obvious until the thaw, when the split pipe suddenly gushes. That's why prevention beats repair every time.
Before a freeze: prevention checklist
When a hard freeze is forecast:
- 1Disconnect and drain garden hoses; cover outdoor spigots or shut off and drain them
- 2Insulate exposed pipes in crawl spaces, garages, the attic, and exterior walls
- 3Open cabinet doors under sinks on exterior walls to let warm air reach the pipes
- 4Let a pencil-thin trickle of water run from the most exposed faucets overnight
- 5Keep the heat on (even when away) and know where your main water shutoff is
If a pipe freezes or bursts
If a faucet won't flow on a freezing morning, you may have a frozen pipe — shut off the main if you suspect a break, since the danger comes when it thaws and releases. If a pipe has already burst, close the main shutoff immediately, open a low faucet to relieve pressure, and call a plumber. Knowing your shutoff location in advance turns a disaster into a manageable repair.
The thaw is when it floods
A frozen pipe may not leak until it thaws. If you find a frozen line, shutting off the main before it warms can prevent a flood.
What's the next step?
Want to freeze-proof your home before winter? We can insulate vulnerable runs and install frost-free hose bibs. And if a pipe has already burst, we offer emergency service — call (678) 203-8627 and we'll get the water stopped and the pipe repaired.
Pipes are at risk when temperatures drop into the low 20s (°F) and below, especially for exposed runs in crawl spaces, garages, and exterior walls. Sustained freezes raise the risk, which is why prevention steps matter before a cold snap.
Yes — a pencil-thin trickle from the most exposed faucets keeps water moving and relieves pressure, which helps prevent both freezing and bursting. Focus on faucets fed by pipes along exterior walls.
Terms in this guide
- Frost-free hose bib (sillcock)
- An outdoor faucet built so the valve that actually shuts off the water sits inside the heated wall, well back from the cold exterior. It drains itself when closed, which helps prevent the burst pipes that standard outdoor spigots cause in a hard freeze.
- Repipe
- Replacing some or all of a home's supply (or drain) piping. Older Atlanta homes often have galvanized steel, polybutylene, or cast iron that corrodes or fails with age; a repipe swaps it for modern copper or PEX.
- Water service line
- The pipe that carries clean water from the city main (or your well) to your home. When it leaks or fails, it can cause low pressure, soggy spots in the yard, or a high water bill.