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If a faucet gives only a trickle on a cold morning, you likely have frozen pipes. Shut off your main water valve right away, because the real danger is not the ice but the burst that follows when it melts. Then thaw the pipe slowly with gentle heat. Our local plumbing experts handle frozen and burst pipes across the Triad all winter.
Frozen Pipes: Key Takeaways
- Shut off the main first. This stops a flood if the pipe has already cracked.
- Thaw slowly. Use a hair dryer or space heater, never an open flame.
- Work from the faucet back. Start heating near the open tap and move toward the frozen spot.
- Pipes freeze at 20 degrees. That is the danger line for exposed pipes in crawl spaces and exterior walls.
- Prevention is cheap. Insulation, a dripping faucet, and a 55 degree thermostat beat a burst pipe every time.
What To Do the Moment You Suspect a Frozen Pipe
A frozen pipe is a race against the thaw. The ice itself does not flood your home. The crack it leaves does, the second the water starts flowing again. Move fast.
- Shut off the main water valve. This is the single most important step. If the pipe is cracked, it stops the flood before it starts.
- Open the affected faucet. Leave it open so melting water has somewhere to go and pressure cannot build.
- Find the frozen section. Check crawl spaces, exterior walls, the garage, and under sinks. Frost on the pipe is a dead giveaway.
- Inspect for cracks. Look for bulges or splits before the pipe fully thaws so you know what you are dealing with.
How To Thaw a Frozen Pipe Safely
Once you have the main shut off and the faucet open, you can start thawing. The key word is slowly. Rushing it with too much heat can crack the pipe.
- Apply gentle heat. A hair dryer, a space heater, an electric heating pad, or towels soaked in hot water all work.
- Work from the faucet back. Start near the open tap and move toward the frozen area so melting water can drain out.
- Never use an open flame. A blowtorch or propane heater can crack the pipe or start a house fire. The American Red Cross warns against this strongly.
- Keep heating until flow returns. Once water runs freely, the ice is clear. If it does not, the frozen spot may be in a wall.
If the frozen pipe is hidden inside a wall or ceiling, or you find a crack, stop and call a plumber. Our emergency plumbing help line is open 24/7 at (336) 462-1080.
At What Temperature Do Pipes Freeze and Burst?
Knowing the numbers helps you know when to take action. Pipes are most at risk when the temperature holds below freezing for several hours.
| Temperature | Risk level | What to do |
|---|---|---|
| 32 degrees F | Low for insulated pipes | Normal care |
| 20 degrees F | High for exposed pipes | Drip faucets, open cabinets |
| Below 20 for 6+ hours | Burst risk rises sharply | Active prevention, watch closely |
| Pipe already frozen | Burst possible on thaw | Shut off main, thaw slowly |
How To Prevent Frozen Pipes This Winter
A little prep in the fall saves a huge headache in January. These steps are cheap and take an afternoon.
- Insulate exposed pipes. Foam sleeves on pipes in crawl spaces, garages, and exterior walls make a real difference.
- Let a faucet drip. On the coldest nights, a slow drip from the farthest faucet keeps water moving.
- Open cabinet doors. Let warm room air reach the pipes under kitchen and bathroom sinks.
- Keep the heat at 55 degrees. Even when you are away, do not let the house drop below 55.
- Disconnect garden hoses. Drain and store them so outdoor spigots do not freeze. The Ready.gov winter guide has a full cold-weather checklist.
Frequently Asked Questions
When should you worry about frozen pipes?
Worry when the outside temperature drops to 20 degrees or below for several hours, or when a faucet gives only a trickle. Those are the signs that a pipe has frozen and needs attention before it bursts.
Do frozen pipes eventually thaw out?
Yes, they thaw once temperatures rise, but simply waiting is risky. A frozen pipe may already be cracked and will leak the moment the ice melts. It is safer to shut off the main and thaw it on your terms.
Do you let hot or cold water drip to keep pipes from freezing?
Let a slow drip of cold water run from the faucet farthest from your main. Moving water is far less likely to freeze than still water, and cold is fine for this.
How long can pipes stay frozen before they burst?
There is no exact timeline, but the risk climbs after four to six hours of sustained freezing. The longer the ice sits and expands, the higher the chance the pipe splits.
Which Pipes Freeze First in a Triad Home
The Triad does not get the brutal winters of the north, but our cold snaps catch people off guard precisely because homes here are not always built for deep cold. The pipes most at risk are the ones with the least protection from the heated part of your house. Knowing where they are tells you where to focus when a hard freeze is coming.
- Crawl space pipes. Many Triad homes sit over vented crawl spaces where cold air moves freely across the plumbing.
- Exterior wall pipes. Lines run through outside walls have little insulation between them and the cold.
- Garage and attic runs. Unheated spaces let pipes drop to outdoor temperatures fast.
- Outdoor spigots and hose bibs. These are the first to freeze and a common spot for a hidden burst.
What To Do After a Freeze Passes
Even if your water kept flowing through a cold snap, a quick check afterward is smart. A pipe can crack from the ice and only start leaking once everything thaws and pressure returns.
- Check your water pressure. A sudden drop can mean a line cracked during the freeze.
- Look for damp spots. Walk your crawl space, garage, and under-sink cabinets for any moisture.
- Watch your water bill. An unexplained jump after a freeze points to a hidden crack.
- Listen for running water. With every tap off, any sound of water moving is worth investigating.
If you find a leak or just want peace of mind after a hard freeze, we are glad to take a look. Call (336) 462-1080 and we will check your lines.
Why a Burst Pipe Is So Costly
People underestimate how much water a burst pipe releases. A single break can pour out many gallons a minute, and if it happens while you are at work or asleep, it can soak floors, ceilings, and walls before anyone notices. That is why the first step is always to shut off the main valve. Stopping the water supply is what limits the damage, not thawing the pipe.
The repair itself is usually straightforward once the water is off. The expensive part is the water damage, which is why acting fast pays off. If you are heading into a cold snap and worried about a vulnerable pipe, a little prevention now beats a flooded room later. And if a pipe has already burst, shutting the main and calling a plumber quickly keeps a bad day from becoming a much worse one.
Burst Pipe or Frozen Line? Call for Fast Help
A burst pipe can flood a home in minutes. If your pipe has frozen or already cracked, call All-Star Plumbing at (336) 462-1080 and we will get there fast to thaw it, repair the damage, and get your water back on. A real person answers 24/7, we give upfront pricing, and if we cannot fix it, you do not pay. We serve High Point and the whole Triad. For a split line, our burst pipe repair and water damage plumber crews are ready. You can also contact All-Star online.
All Star Plumbing
4003 North Main Street, High Point, NC 27265
Phone: (336) 462-1080
NC Plumbing License #15130
