What To Do When Your Pipes Freeze 

Frozen pipes are one of those winter problems that can turn serious fast if handled the wrong way. Most homeowners notice it when a faucet stops flowing or only produces a weak trickle. The good news is that many freezes can be handled safely if you act early and know when to stop. This guide walks through what to do when your pipes freeze, how to thaw them safely, and how to prevent the same issue the next time temperatures drop.

First Steps When You Suspect Frozen Pipes

Confirm the freeze and locate likely trouble spots

The first sign is usually no water coming from one or more fixtures. In some cases, you may see frost on exposed piping or notice a pipe that looks slightly bulged. Common freeze locations include pipes in north-facing exterior walls, crawlspace and attic pipes, garages, and areas near vents or poorly sealed openings. If only one fixture is affected, the freeze is often nearby. If multiple fixtures are dry, the frozen section may be closer to where the water line enters the home.

When pipes freeze, the first question is usually what to do next. Slowing down and locating the frozen section before applying heat helps prevent damage.

Protect your home before you thaw

Before you try thawing anything, take steps to limit damage if a pipe has already cracked. If you hear hissing, see visible splits, or notice ceiling stains, shut off the main water supply right away using the shut off main water valve. Place towels or buckets under exposed pipes and move valuables out of the area. If you suspect hidden damage, water leak detection may be needed once water service is restored.

Safe DIY Thawing Methods

Gentle heat on the frozen section

If you can see and reach the frozen section, gentle heat is the safest approach. A hair dryer to thaw pipes works well when used correctly. Start near the faucet end of the pipe and slowly move toward the colder section. Keep the heat moving and allow time for warmth to transfer through the pipe. This process can take several minutes, and rushing it increases the risk of damage.

Methods to avoid for safety

Some thawing methods are dangerous and should never be used. Never use open flame sources such as propane torches, candles, or kerosene heaters. These can damage pipes, start fires, or create carbon monoxide hazards. Unattended space heaters are also risky, especially near water or confined spaces. Electrical safety matters too. Avoid using extension cords or heating devices in wet areas.

Help water start moving

As you apply heat, open faucets to relieve pressure at the affected fixture. Even a small flow helps melting progress and reduces the chance of a burst. In cold weather, drip faucets in freezing weather can also help keep water moving once flow returns.

When to Stop DIY and Call a Plumber

Red flags that require professional help

DIY thawing has limits. Stop and call an emergency plumber if you cannot locate the frozen section, if breakers trip repeatedly while using heating devices, or if water does not return after 30 to 45 minutes of careful thawing. Visible pipe damage, water appearing inside walls, or signs of slab or wall leaks also mean it is time for professional frozen pipe repair. If a pipe bursts at any point, shut off the main water valve immediately and request service.

Preventing Frozen Pipes Next Time

Day-of cold snap actions

When temperatures drop suddenly, a few simple steps can reduce risk. Open cabinet doors under sinks along exterior walls to let warm air circulate. Set the thermostat to a steady temperature, even overnight. On long or exposed runs, dripping faucets in freezing weather can help prevent pressure buildup if ice starts forming.

Simple upgrades that protect piping

Long-term protection often comes down to insulation and airflow. Insulate exposed pipes in crawlspaces, attics, and garages. Seal air leaks near rim joists and exterior penetrations. In vulnerable areas, heat tape for pipes can provide extra protection when installed correctly. Replacing outdoor spigots with frost-free hose bibbs also helps protect exterior lines.

Ongoing checks that save you from surprises

Keep an eye on water usage. A sudden high water bill can signal a hidden leak after a freeze. Each fall, inspect known problem areas and address drafts or insulation gaps. If frozen pipes have been an ongoing issue, a plumbing inspection can help identify better ways to prevent pipes from freezing.

Quick Action Plan (Printable Summary)

1) Verify the freeze

Check affected fixtures and locate likely cold spots.

2) Protect the home

Shut off the main water valve if damage is suspected and manage any visible water.

3) Thaw safely

Use gentle heat like a hair dryer, keep faucets open, and avoid unsafe methods.

4) Stop and call if needed

If there is no progress, visible damage, or water appears where it should not, contact a professional.

Need Help Thawing or Repairing a Frozen Pipe?

Fast service and prevention guidance

If you are dealing with frozen pipes or need help after a burst, Greenwell Service can assist with thawing, repairs, and upgrades that reduce future risk. We also help homeowners understand how to thaw frozen pipes safely and identify ways to prevent pipes from freezing during the next cold snap.

Schedule Online or Call (502) 205-2482 to request service.