A frozen pipe can crack without leaking, and the water often escapes only after the ice melts, sometimes hours later. That delay makes the thaw itself the risky part, so the method matters as much as the speed. North Georgia outside the mountains sees lows at or below 32 degrees on 50 to 70 days each winter, and the average first freeze in Atlanta arrives around November 13. Pipes in crawl spaces, garages, attics, and exterior walls take that cold every year.
How to Tell a Pipe Is Frozen
The first sign is a faucet that runs as a trickle or not at all while the rest of the house has water. Frost on an exposed pipe or a slight bulge in the line confirms it. Freezes most often start in pipes along exterior walls, in unheated basements, crawl spaces, attics, and garages, under kitchen cabinets, and where the water service enters through the foundation. Hot water lines freeze as well as cold ones, so a frozen hot water pipe gets the same treatment.
Check every faucet in the house, because other pipes may be frozen too. If no faucet runs, the main service line between the meter and the foundation may be frozen, which typically takes temperatures below 20 degrees Fahrenheit. That section sits outside the reach of a hair dryer, and a plumber is the next call.
How to Thaw Frozen Pipes Step by Step
Start at the faucet. Open the tap on the frozen line and leave it open, since melting ice needs a path out and moving water helps melt what remains. Closing the main shutoff first is a sensible precaution, with every faucet open to bleed off pressure, so a hidden crack has nothing to flood once the ice clears.
Then apply gentle heat to the frozen section. Wrap an electric heating pad around the pipe, aim a hair dryer at it, or lay towels soaked in hot water (not boiling) over it, and keep going until full pressure returns. Slow heat matters because a pipe warmed too fast can crack. In a garage or crawl space, a portable space heater works if it sits well away from anything flammable. Never leave an electric heater unattended, and never stand in water while using one.
Do not use a flame. A blowtorch, propane or kerosene heater, or charcoal stove can ignite framing and insulation, and the concentrated heat can split the pipe it was meant to save.
When the frozen section is out of reach, heat the room instead. Raise the thermostat above 55 degrees and open cabinet and closet doors so warm air reaches the pipes. Once water runs normally, turn the supply back on slowly at the main and walk the house for leaks. If anything drips or sprays, close the valve again immediately.
How Long Frozen Pipes Take to Thaw on Their Own
Frozen pipes thaw on their own once temperatures climb above freezing, but how long that takes depends on where the pipe runs. Warming a room with a heater can take hours, while a heating pad or hair dryer on an exposed section unfreezes the pipe faster. North Georgia winter highs average in the 50s, so many freezes break by afternoon, though a pipe in an unheated crawl space or an exterior wall can stay frozen after the air outside warms.
Waiting is not harmless. A pipe that thaws on its own while nobody is home can release water into a wall or crawl space for hours, and a very small leak can lose about 250 gallons a day. As the ice moves, pipes may gurgle, clang, or bang, and the water heater can make the same sounds. Those noises are expected. Water on the floor or a wet spot on a wall means the pipe has split.
When Frozen Pipes Need a Plumber
Call a plumber when the frozen section is behind a wall, under a slab, or underground, when it cannot be located, when heat has not restored flow, or when any water is leaking. A burst pipe changes the job from thawing to repair, so close the main water valve first, then call.
How to Prevent Pipes From Freezing
Prevention work belongs before mid November, ahead of the average first freeze. Disconnect and drain garden hoses, close the inside valve to each outdoor hose bib, and open the outside spigot so trapped water can expand without splitting the pipe. Insulate supply lines in attics, crawl spaces, and garages with foam pipe sleeves, and wrap exposed runs with UL-listed heat tape where a freeze has happened before.
During a hard freeze, let cold water drip from the faucet served by the most exposed pipe, since moving water resists freezing. Keep the thermostat at the same setting day and night, open the cabinet doors under sinks on exterior walls, and keep garage doors closed. When leaving town in cold weather, hold the heat at 55 degrees or higher.
Frozen Pipe Help in Metro Atlanta
When the steps for how to thaw frozen pipes do not restore flow, a licensed plumber is the next step, not more heat. Total Mechanical Care, a family plumbing business since 1923, offers 24/7 emergency service, upfront flat-rate pricing, and a 100% satisfaction guarantee. Call 404-738-8679 or book online.
