No Water From One Faucet During a Freeze? Treat It Like a Frozen Pipe Before It Bursts

Use the other fixtures to map how much plumbing may be frozen

Turn on nearby hot and cold taps one at a time. If only one side of one faucet is affected, the frozen section may be a short branch line. If several fixtures on the same side of the house are dry, the frozen area may be farther upstream. If the entire home has no water, also consider a utility outage, well-pump problem, closed main valve, or frozen service line before assuming one indoor branch is the cause.

The American Red Cross advises suspecting a frozen pipe when a faucet produces only a trickle in freezing weather. Common locations include exterior walls and places where the service line enters the foundation, as well as unheated garages, crawl spaces, basements, attics, and cabinets.

Before thawing, locate the main shutoff and inspect for a split

Know where the home's main water shutoff is before adding heat. Ice can temporarily plug a crack, so a pipe that looks dry while frozen may begin leaking rapidly as flow returns. Look for bulges, splits, wet insulation, stained drywall, or water sounds in walls and ceilings.

If you already see a cracked pipe or active leak, close the water supply and call a plumber rather than continuing to thaw the line under pressure. In an apartment or condominium, contact building maintenance because the affected branch may serve or pass through another unit.

Thaw an accessible pipe slowly from the faucet side

The Red Cross recommends keeping the affected faucet open while thawing so melting water and pressure have a path to escape. Apply gentle heat with an electric heating pad, hair dryer, towels soaked in hot water, or another safe method appropriate for the location. Work from the faucet side toward the colder section rather than concentrating intense heat in one spot.

Never use a blowtorch, propane or kerosene heater, charcoal device, or other open flame. Besides the fire risk, intense localized heat can damage plastic pipe, soldered joints, insulation, wiring, or nearby framing. If the frozen section is inside a wall, underground, or otherwise inaccessible, use a licensed plumber instead of cutting into the building blindly.

1. Compare other faucets to determine whether the problem affects one branch, one side of the plumbing, or the whole house.
2. Locate the main water shutoff and inspect the suspected pipe path for splits, bulges, wet material, or active leakage.
3. Leave the affected faucet open while applying gentle, controlled heat to an accessible frozen section.
4. Continue until full pressure returns, then inspect the full exposed run and nearby building materials for leaks as the pipe warms.
5. Check other vulnerable faucets and pipes because one frozen line often means other cold areas are near the same risk point.

After the thaw, fix the cold path that caused the freeze

Dry pipe is not the end of the problem. Seal cold-air leaks around rim joists, utility penetrations, and exterior-wall cavities where appropriate; insulate exposed supply lines; keep garage doors closed when water lines run through the garage; and open sink-cabinet doors during severe cold when doing so is safe around children and pets.

The Red Cross recommends keeping a home at no lower than about 55°F when away during cold weather and allowing a small trickle from vulnerable piping during extreme cold when appropriate. For chronic freezing, a plumber or insulation/air-sealing professional should evaluate pipe routing rather than relying on repeated emergency thawing.