How Long Do Sewer Lines Last Before They Need Replacing?
Many homeowners have never had to replace a sewer line before. In fact, a well-maintained line may only need to be replaced once in your lifetime or less.
When a line does need to be replaced, you’ll often know it right away. These long-lasting lines are made to take sewage and wastewater away from your home, so any leak or drainage problem can result in foul odors.
By learning the common signs of a line failure and typical lifespan of sewer lines, you can make sure your home is prepared for the future. When in doubt, you can always reach out to our team of expert plumbers for professional advice.
What should you notice before it needs to be replaced? To learn more, read on.
What Is the Average Lifespan of a Sewer Line?
When you need to replace your lines depends on the material that was used. On average, these lines last around 50 to 100 years. While cast iron, concrete, and polyvinyl chloride (PVC) pipes tend to last the longest, clay often breaks down earlier.
PVC
PVC is a modern pipe material that is known for being lightweight. These pipes are easy to install and resistant to corrosion. Because of this, they can generally last around 100 years before a replacement is required.
Homeowners often opt for PVC pipes because of their natural resistance to tree root infiltration and other common pipe problems. However, PVC is known for becoming brittle in the presence of UV rays or extreme temperatures. As a result, it’s important to be mindful about how and where these lines are installed.
Cast Iron
Cast iron has been used for decades. You will often find it in homes that were constructed before the 1970s. While these pipes are known to last 75 to 100 years, the extended lifespan comes at a cost. Because they are made of iron, these pipes can develop rust and cracks.
Clay
You’re more likely to find clay pipes in older homes. Clay is resistant to corrosion, but it is prone to cracking and shifting. In addition, these pipes are more likely to suffer from tree root intrusion.
Because of this, it’s essential to get your lines inspected regularly for hidden signs of damage. With proper care, these pipes can last for around 50 to 70 years.
Concrete
In residential settings, concrete lines were more common during the 19th and 20th centuries. Today, concrete is primarily used by municipalities and for commercial purposes because it is too rigid and brittle for residential use. When installed properly, these lines will last around 70 to 100 years.
Orangeburg
Orangeburg pipes are made from a type of bituminous fiber. These pipes were commonly installed between the 1940s and 1970s, but they fell out of favor because of their relatively short lifespan. Orangeburg can deteriorate quickly when exposed to shifting soil, root intrusion, and water infiltration. As a result, these pipes often last for just 50 to 60 years.
Steel Pipes
Like cast iron pipes, steel pipes are susceptible to corrosion and rust. They are less commonly installed today, although many homes still use them. When installed and maintained properly, these pipes can last for up to 100 years.
Factors That Affect Your Sewer Line’s Lifespan
No matter what type of pipes you have, there are a few key factors that will determine how long they last.
- Root Intrusion: Tree roots naturally grow toward running water, which eventually causes root intrusion. Even with the best care and pipe quality, these roots can lead to pipe failure.
- Maintenance: Proper maintenance can extend the lifespan of important plumbing components.
- Material: Clay and cast iron are more likely to crack. In comparison, PVC pipes are known for their durability.
- Installation Quality: If pipes are poorly installed, it can cause them to fail prematurely.
Common Symptoms Before It Needs To Be Replaced
As a homeowner, there are a few signs that you may need your line replaced.
- Gurgling noises in multiple plumbing fixtures
- Frequent sewage backups
- Slow drainage in multiple fixtures
- An unexplained pest infestation
- Foundation issues from major leaks
FAQs
How long does it take to replace a sewer line?
While each home and situation is different, it normally takes our plumbers just one to three days to replace the line.
Is it possible to repair my line without digging it up?
With trenchless sewer repair, we can fix or replace the line without having to dig everything up.
What does it mean if I hear gurgling noises coming from my drain?
When you hear a gurgling noise, it is often due to a clog in the drain line. If you only hear the sound coming from one fixture, the problem is localized.
When you hear this noise from different plumbing fixtures, it means that the issue stems from a shared source. Because the gurgling is likely due to a clog in the sewer line, you should reach out to a plumber for professional help.
Avoid Unexpected Line Replacements
As your pipes start to age, repairs become more likely. The best way to prevent unexpected breakdowns is through timely maintenance and proactive replacements.
Our team of Lakeland plumbers is here to help with all of your plumbing needs. We’re known throughout the area for our reliable, affordable, and punctual services. If there’s any delay, it’s you we pay!
Give us a call today to get your system inspected by a professional.
