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Lake Ray Hubbard Water ResponseWater Damage Help · Rowlett, TX

Why Did My Pipe Burst?

Last updated October 25, 2026

The short answer

Freezing Temperatures

When water freezes, it expands by about 9 percent. That expansion increases pressure inside the pipe until the pipe wall gives way. Pipes in unheated areas like attics, garages, or crawl spaces are most at risk. Even a small crack can release a surprising amount of water.

A cold snap in Rowlett can drop temperatures quickly. If your home has poor insulation or drafts near pipes, the risk rises. Letting a faucet drip during extreme cold can help, but it is not a sure fix. The right defense is insulating exposed pipes and keeping indoor temperatures steady.

High Water Pressure

Water pressure that is too high stresses pipes and joints over time. Municipal supply pressure can vary, but it usually stays within a safe range. If your home has a pressure regulator, it can fail. A sudden spike from a water main break or a faulty pump can also cause a burst.

You can check your home's pressure with a simple gauge that screws onto an outdoor spigot. Readings above 80 psi are a warning sign. A pressure-reducing valve installed by a plumber can protect your pipes. But do not assume that is the fix until a professional checks the system.

  • Check pressure at an outdoor faucet with a gauge
  • Look for water hammer noises when taps close
  • Inspect for leaking joints or wet spots on walls
  • Note any sudden changes in water flow
  • Ask a plumber to test the pressure regulator

Corrosion and Age

Metal pipes corrode from the inside over decades. Mineral deposits and chemical reactions weaken the pipe wall. Copper and galvanized steel are common in older homes. Corrosion often shows as green stains on fittings or a metallic taste in water.

Plastic pipes like PEX resist corrosion, but they can still fail from UV exposure or improper installation. If your pipes are old, have a professional inspect them. They can look for thinning walls or pinhole leaks before a full burst happens. Replacing a section is often simpler than dealing with a flood.

Shifting Soil and Ground Movement

Soil expands and contracts with moisture changes. Heavy rain or drought can move the ground enough to stress underground pipes. This is more common for outdoor lines, but it can affect pipes under a slab foundation. A small shift can crack a rigid pipe.

Spring hail and thunderstorms can saturate the ground quickly. If your yard has poor drainage, water pools near the foundation. That adds pressure against buried pipes. You may notice cracks in walls or sticking doors, which can signal settlement. A professional inspection can identify whether ground movement is a factor.

Poor Installation or Materials

Pipes that are not supported properly can sag and stress joints. Using the wrong type of fitting for the pipe material can cause leaks. Soldered joints that are overheated or underheated can fail later. Even a small installation mistake can lead to a burst years down the road.

If you have had a recent plumbing job, check for signs of trouble. Water stains, damp drywall, or a running meter when nothing is on are red flags. A professional can review the work and correct issues. Catching a problem early saves you from a bigger cleanup.

  • Look for wet spots on ceilings or floors
  • Listen for hissing or tapping sounds in walls
  • Check your water meter for unexplained movement
  • Feel pipes for vibration when water runs
  • Note any musty odors that appear after rain

Talk to someone now

Phones are answered 24/7 for Rowlett and nearby communities.

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Frequently asked questions

Can a pipe burst without freezing?

Yes. High water pressure, corrosion, ground movement, and installation defects can cause bursts. Freezing is the most common cause in cold climates, but other factors matter. If you notice dampness or low pressure, have a professional inspect the pipes.

How do I know if a pipe is about to burst?

Watch for damp spots, stains, or peeling paint on walls. Listen for hissing or rattling sounds. A sudden drop in water pressure or a running meter when nothing is on can signal a leak. If you suspect a problem, turn off the water and call a pro.

Should I turn off my water if a pipe bursts?

Yes, turning off the main shutoff valve stops the flow and limits damage. Find the valve ahead of time, often near the water meter or where the line enters the home. Then call a water damage professional to handle the cleanup and repairs.

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