Frozen Pipe Repair, Before and After the Thaw
A Georgia freeze finds the pipes nobody insulated, crawl space runs, garage walls, hose bibs. If a tap stopped flowing this morning, there is a short window to act before a split becomes a flood.
Freeze nights are our busiest hours of the year. Call early rather than late.
The mild-climate trap
Why Georgia pipes freeze when colder states get away with it
Freezing is not really about how cold it gets. It is about how cold it gets relative to what the building was designed for. In Minnesota, plumbing is routed inside the heated envelope, crawl spaces are conditioned or absent, and hose bibs are frost-proof as a matter of course. In Georgia, where eleven months of the year are mild, none of that is standard.
So a run of copper stapled to the underside of a floor in a vented crawl space is completely fine for most of the year, and then one night in January the temperature sits in the teens for eight hours with a wind moving through the vents. Water expands by roughly nine percent as it turns to ice. There is nowhere for that expansion to go, and the pressure builds between the ice plug and the closed tap, which is why the split often appears somewhere other than where the ice actually formed.
The other Georgia specific: the freeze is short. The pipe freezes overnight and thaws by mid-afternoon, and that is when a split pipe starts flooding, usually while everyone is at work.
Usual suspects
The four places Georgia pipes freeze first
Hose bibs and outdoor taps
An exterior spigot with a hose still attached cannot drain, so water sits in the last few inches of pipe and in the bib itself. The freeze splits the body of the tap or the pipe just inside the wall, and because that section is inside the wall cavity, you often do not find out until you open the tap in spring and water pours into the house instead.
Crawl space runs
Vented crawl spaces are effectively outdoor air with a floor over them. Supply lines strapped to the joists, especially near a vent or an open access door, are the classic Georgia freeze point. Insulation that has fallen off the pipe or sagged out of the joist bays makes it worse than no insulation at all, because it hides the problem.
Garages and laundry rooms
An unheated garage with a laundry connection or a utility sink on the outside wall gets forgotten every year. So does a water heater installed in the garage. If the garage door has been left open on a cold night, the pipes in there have had a much worse night than the ones in the house.
Exterior walls and attics
Kitchen sinks on an outside wall, second-floor bathrooms above an unheated space, and any line run through an attic. These freeze less often but cause the most damage, because a split inside a wall or above a ceiling releases water into the structure rather than onto a floor.
Act now, not later
A tap stopped flowing. What to do in the next hour
A frozen pipe that has not split yet is a free warning. Treat it as one.
- Work out how much of the house is affected. If one fixture is dead and the rest are fine, the ice is in that branch. If nothing anywhere works, the freeze is closer to where the supply enters the house, or the meter itself.
- Leave the affected tap open, both hot and cold. Melting water needs somewhere to go, and an open tap relieves the pressure that actually causes the split.
- Find your main shut-off now, before you thaw anything. If the pipe is already cracked, water starts moving the second the ice clears, and you will have seconds rather than minutes.
- Open the cabinet doors under sinks on exterior walls so room air reaches the pipework, and let a slow trickle run from the furthest tap overnight if another cold night is forecast.
- Look before you warm. If you can see the pipe, check it for a bulge, a hairline split or a green-white corrosion bloom. A visibly deformed pipe should be repaired, not thawed.
Never use an open flame
No torches, no propane heaters pointed at a wall, no charcoal. It is the most common cause of house fires during a cold snap, it can steam-burst the pipe you are trying to save, and on plastic pipework it destroys the line outright. Warm air only: a hair dryer, a heat gun on low at a distance, a space heater in the room, or towels soaked in hot water on exposed metal pipe.
Not sure whether to thaw it yourself or wait? Two minutes on the phone will settle it.
Ask a Plumber NowOn the job
How a plumber thaws a line safely
Locate the plug
Which fixtures are dead tells you which branch is blocked. From there it is a matter of following the run to the coldest section, near a vent, an access hatch, an exterior wall penetration. Frost or condensation on the pipe surface, and a section noticeably colder to the hand, usually give it away.
Warm from the fixture back
Heat is applied at the tap end first and worked backwards toward the plug, so meltwater always has an open path out. Warming the middle of an ice plug first traps water between two blockages, which is how a pipe splits during thawing rather than during the freeze.
Watch the pressure return
The moment flow comes back is the moment any split starts leaking, so the main is kept closed or a hand stays on the valve. Then the whole run gets checked, not just the section that froze, because a hard freeze commonly cracks more than one point and the second one shows up a day later.
Whole-house freeze, or a line you cannot get to? That is a call-out, not a DIY afternoon.
Get a Plumber Out HereThe repair itself
What the repair looks like once a pipe has split
A frozen split is rarely a neat pinhole. Ice tears copper along its length, cracks the body of a brass fitting, or blows a joint apart. The repair is therefore almost always a section replacement rather than a patch, the damaged length is cut out and a new piece is soldered, press-fitted or connected with a coupling depending on the material.
Material matters a great deal here. Copper splits cleanly and repairs well. CPVC becomes brittle with age and often cracks further along when handled, so a longer section usually comes out. PEX is the most forgiving. It can expand with ice and frequently survives a freeze that would have destroyed copper, though the fittings do not. Polybutylene, common in Georgia houses built roughly between 1978 and 1995, is a different conversation: if it has failed once it is likely to fail again, and a polybutylene repipe is often the sensible answer rather than another repair.
Where the split is decides most of the cost. An accessible crawl space run is a straightforward job. A line inside a finished wall or above a ceiling means opening the structure to reach it, and the plumbing repair may be the cheaper half of the day.
Autumn work
Making sure it does not happen again
Freeze protection in Georgia is a short, cheap job that almost nobody does until after their first burst. Done in October, it is an ordinary scheduled visit.
- Disconnect every hose before the first cold night and fit insulated covers over the bibs. Consider frost-proof replacements for the taps that keep failing.
- Sleeve the crawl space runs, properly fitted foam or wrap on the pipe itself, not just batts pushed into the joist bays where they fall out by spring.
- Close crawl space vents for the cold nights if your crawl space is designed to allow it, and shut the access door.
- Deal with the garage. Insulate the laundry lines and the water heater, and keep the door shut when a freeze is forecast.
- Know the drip trick. On a hard freeze night, a pencil-thin trickle from the furthest tap keeps water moving through the vulnerable run. It costs a few gallons and it works.
Full detail on materials, heat tape and what is worth doing yourself is on the pipe insulation and freeze protection page.
Questions we get on the phone
Answered plainly
Often yes, if the pipe is visible and reachable, a crawl space run or a line under a sink. Open the affected tap, apply gentle warmth starting at the fixture and working back toward the frozen section, and never use a flame. Find your main shut-off before you start. If the pipe is inside a wall or ceiling, or if you can see a bulge or crack, call instead.
You often cannot until it thaws, which is why the shut-off matters. Warning signs: a visible bulge or a hairline crack in the pipe, a fitting that looks pushed apart, or water appearing as soon as flow returns. If nothing works anywhere in the house after a freeze, assume there may be a split until you have watched the whole run with the water back on.
On a genuinely hard freeze night, yes. A thin trickle from the tap furthest from where the supply enters keeps water moving through the most exposed run and relieves pressure if ice does form. It is not a substitute for insulation, but for one night it is cheap insurance.
It is useful on specific, hard-to-insulate runs, and it must be the right product for the pipe material, installed to the manufacturer instructions, plugged into a proper outdoor-rated circuit and never overlapped on itself. Old heat tape is a genuine fire risk. We would rather insulate properly and use heat tape only where insulation alone will not do.
Sometimes, warming the room hard for several hours, opening the cabinet or access panel nearby and running warm air at the wall surface will clear many wall freezes. If that fails, the wall has to be opened, and if the pipe has split it has to be opened anyway. A plumber can usually narrow the location closely enough that only a small section comes out.
Classic delayed freeze damage. The pipe just inside the wall split during a freeze while the tap was closed, so nothing came out. The first time you open the tap in spring, water flows out through the split inside the wall cavity instead of out of the spout. Shut the water off and call, that one needs opening up.
Tap stopped flowing this morning?
That is the warning shot. Call before the thaw, not after the ceiling comes down.
(866) 559-0826