The short answer
Why Frozen Water Is a Problem
Water expands by about 9 percent when it turns to ice. Inside a wall, that expansion presses hard against pipes, fittings, and surrounding materials. A small crack in a pipe can open wider, and joints can pull apart under the pressure. Even if the pipe holds, the ice can push against drywall and framing, causing cracks or bulges that show up later.
As the ice thaws, the water that was trapped inside the wall starts to flow. That sudden release can flood the wall cavity, soak insulation, and drip down into floors and ceilings. The longer the water sits, the more damage it can do to wood, drywall, and electrical components behind the wall. Acting quickly once you notice a problem can help limit the extent of the damage.
Signs of Frozen or Burst Pipes
You might not notice anything until the thaw starts. When temperatures rise, watch for damp patches on walls or ceilings, peeling paint, or a distinct musty smell. You may also hear the sound of running water when no faucet is on, which can indicate a leak inside the wall. If you have access to a crawlspace or attic, check exposed pipes for frost or bulges.
- Damp or discolored drywall
- Peeling or bubbling paint on walls
- Musty odor in a room
- Running water sound with no faucet on
- Frost on exposed pipes in attic or crawlspace
- No water or low pressure at a fixture
What to Do Right Away
First, shut off the main water supply to your home. That stops more water from entering the system and limits flooding if a pipe has burst. Then open the faucets that are closest to the frozen area to let water drain out as the ice melts. Keep the heat in your home set to a consistent temperature, and open cabinet doors under sinks to let warm air reach the pipes.
If you see water leaking or a pipe has burst, turn off electricity in the affected area if it is safe to do so. Water and electricity do not mix, so avoid touching anything that might be live. Then call local water damage pros to assess the situation. They can extract standing water, remove soaked drywall and insulation, and dry out the wall cavity to prevent mold and structural decay.
How Pros Handle the Damage
Local water damage pros usually start by extracting any standing water and setting up drying equipment to pull moisture out of the wall cavity. They may use air movers and dehumidifiers to speed up the drying process. After the area is dry, they can remove damaged drywall and insulation, and check the framing for rot or warping.
If the pipe itself is cracked or split, a plumber will need to replace the damaged section. The pros can then repair the drywall, repaint, and restore the wall to its previous condition. In cases where mold has already started to grow, a mold professional may be needed to handle the cleanup safely. The full process depends on how much water was involved and how long it sat.
Preventing Future Freeze Damage
The sensible way to avoid frozen pipes in walls is to keep your home heated during cold snaps, even if you are away. Set the thermostat to at least 55 degrees Fahrenheit. Insulate pipes that run through unheated spaces like crawlspaces and attics. Seal gaps around doors and windows that let cold air reach the pipes.
If you live in Euless, keep your shutoff valve location written down and make sure everyone in the house knows where it is. During a hard freeze, let a trickle of water run from faucets on exterior walls. That moving water is less likely to freeze solid. Also, disconnect garden hoses and drain outdoor pipes before temperatures drop. These simple steps can save you from a messy and costly repair.
- Keep the thermostat above 55 degrees during cold weather
- Insulate pipes in unheated areas
- Seal air leaks around exterior walls
- Let faucets drip during a freeze
- Know where your main shutoff valve is
- Drain outdoor pipes and hoses before winter
Talk to someone now
Phones are answered 24/7 for Euless and nearby communities.
Call Now (817) 799-6732Frequently asked questions
How do I know if a pipe is frozen inside the wall?
You may notice no water from a faucet, frost on exposed pipes in an attic or crawlspace, or a musty smell after a thaw. If you suspect a frozen pipe, shut off the main water supply and call the pros to inspect the area safely.
Can frozen pipes cause mold in walls?
Yes. When ice thaws and water soaks the wall cavity, the damp conditions can lead to mold growth within a day or two. Drying the area thoroughly and quickly is key. If you see or smell mold, a mold professional should handle the cleanup.
Will my insurance cover frozen pipe damage?
Policies vary, and your insurer decides what is covered. Some policies cover burst pipes from freezing, but not if the home was left unheated. Check your policy and ask your insurance company about your specific situation. Document the damage with photos before any repairs.