Do water supply lines go bad?

Author: Bria Boehm  |  Last update: Thursday, January 8, 2026

Supply lines play a vital role in delivering water to your fixtures and appliances. However, they don't last forever. Over time, these lines can wear out, leading to leaks or even significant water damage.

How long do water supply lines last?

And should the line collapse or become damaged beyond repair, running water is off-limits until a replacement can be completed -- usually a process taking several days. If you're lucky, your home's water line will last 70 years or more.

How often should water lines be replaced?

Pipe Material: - Copper Pipes: Lasts 70-100 years but may corrode over time. - PVC Pipes: Can last 50-70 years. - Galvanized Steel Pipes: Typically last 20-50 years; prone to rust and corrosion. - Polybutylene Pipes: Often need replacement after 10-15 years due to brittleness.

How do I know if my water line is broken?

Common Warning Signs
  1. Discolored water. Have you recently noticed that your water is cloudy or discolored? ...
  2. Pools of water on your lawn or street. ...
  3. Low water pressure. ...
  4. Unexplainable increase in the water bill. ...
  5. Pipe corrosion. ...
  6. Structural water damage. ...
  7. Strange noises.

Does homeowners insurance cover broken water lines?

Typically, your homeowners insurance covers cleaning and required repairs due to water damage that is a result of a frozen pipe that has burst. If you turned off your heat when leaving your house for a few days, causing the pipes to freeze when outdoor temperatures dropped, your claim may not be covered.

Supply Line Sizes for Toilet and Faucet

How much does it cost to replace a broken water line?

Average Cost to Repair a Main Water Line

According to HomeAdvisor, U.S. homeowners spent an average of $982 for main water line repairs in 2022. However, the actual range can vary widely. Repairs start around $350 on the low end and climb up to $5,000 or more to replace a water line.

How often do exterior water lines need to be replaced?

Q: How long does a main water line usually last before it needs replacing? Copper lines can last over 50 years, while polyvinyl chloride (PVC) pipes may have a shorter lifespan. Environmental factors and maintenance quality play significant roles.

What is the life of a water line?

Following are some average lifespans from the US Department of Housing and Urban Development for the different types of metals used for main water lines: Brass – 40-70 years. Copper – 50 years. Galvanized steel – 20-50 years.

What is the life expectancy of supply lines?

PVC Supply Lines: These plastic lines are affordable and easy to install but typically last around 5-8 years. They are more prone to cracking and should be inspected regularly. Copper Supply Lines: Known for their longevity, copper lines can last up to 50 years.

Who is responsible for the water line from street to house?

Who is Responsible for the Water Line From the Street to Your House? Water service lines within the bounds of your property are considered your personal responsibility to maintain, while public water pipes outside of private property lines are the city's responsibility.

How much does it cost to run new water lines in a house?

A plumber can assess your project. Main water line replacement costs an average of $1,713 or $50 to $150 per linear foot. This section of piping is crucial to your home's plumbing system.

Can water supply lines get clogged?

These clogs usual occur because of a build-up of minerals along the interior of the pipes due to impurities in the municipal water supply. When you start to notice a drop in water pressure in your home, or if water ceases coming out of some taps entirely, you may have water supply line clogs.

How do I know if my water line is off?

To verify the water is off, turn on the water anywhere in your home or around your property. Alternatively, if the water is off, the indicator on the face of the meter will stop turning or counting. To turn the water back on, slowly turn the valve one-quarter turn counterclockwise.

How often do you need to replace water supply lines?

The general rule of thumb is to replace all your supply line hoses every 5 years as a preventative measure to protect your home against any potential leaks. But since braided supply lines have a rubber core, we recommend that they can be replaced every 10 years.

How long do water supply pipes last?

Pipe Material

Regardless of the material, each of these plumbing products have a life span that you should know so you can gauge whether you need an upgrade. Brass, cast iron, and galvanized steel have a life span of 80 to 100 years, copper lasts 70 to 80 years, and PVC piping only survives for 24 to 50 years.

How do I know if I have a broken water line?

Besides the distinct sounds you hear when a damaged pipe is leaking, these are other common signs of a busted pipe, including: Unusually wet areas inside and outside the facility like puddles (big or small) Rusty, dirty, or bad smelling water. Presence of mold or mildew.

How long do exterior water lines last?

Typically, main water line pipes last decades. Some experts estimate that they last around 70 years, though this can vary from development to development. If your home is considerably dated–if it was built in or before the 1950s or even the 1980s–you should have its water line inspected.

What is the pipe outside my house called?

One pipe is an air conditioning condensate drain, also commonly referred to as an AC drain line. These pipes are usually white in color and are made from PVC piping. Another pipe you may find on the outside of your home is a water pressure relief valve, also known as a PRV drain line.

Do water lines need to be replaced?

Like other systems in the home, water lines are not meant to last forever and will need to be replaced. To ensure that your plumbing lasts as long as possible, you can schedule regular plumbing inspections and ensure that you get timely repairs as soon as you notice any issues.

Does homeowners insurance cover main water line repair?

If these are damaged or break, the homeowner might be responsible for the repair. A standard homeowners policy does not cover the service lines running into the home—unless you've added service line coverage.

How long does it take to replace a water line?

The crew then performs the necessary repairs and replacements. Once the pipe is in working order, they will flush it before reconnecting it to the plumbing system to ensure it is ready to go. How much time will it take for the repair? On average, the main water line repair will take between four and eight hours.

Who fixes water line breaks?

Hire a professional: If the location of the water service line break is on your property, you will likely be responsible for the repair. Depending on the complexity of the situation, you will likely want to hire a professional plumber for the specialized equipment and expertise to safely handle the repair.

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