How do you tell if your sewer line needs to be replaced?

Author: Miss Tatyana Gottlieb  |  Last update: Friday, December 19, 2025

7 Warning Signs Your Sewer Line Needs to Be Replaced
  1. There's a Spike in Your Water Bill. ...
  2. You Hear Gurgling Coming from the Pipes. ...
  3. The Water Is Slowly Draining. ...
  4. Your Yard is Soggy. ...
  5. The Smell of Sewage Lingers. ...
  6. Pests Are Attracted to Your Yard. ...
  7. The Toilet Bowl Water Level Is Up and Down.

How to know if a sewer line needs to be replaced?

Raw Sewage Backing Up Into Your Home

This is the most obvious sign that you need main sewer line replacement service. It's also, by far, the grossest sign indicating an issue with your sewer line.

Does homeowners insurance cover sewer lines?

In most cases, home insurance will cover sewer line damage from specific events. This includes extreme weather (excluding earthquakes and floods), vandalism, fire, and damage from vehicles or falling objects.

How often should sewer lines be replaced?

This pipe, which lies buried under the soil of your yard, can last anywhere from 50-100 years or more, depending on the material from which the pipe is made and the conditions under which it is used.

What are the symptoms of a damaged sewer pipe?

Signs of a Collapsed Sewer Line
  • Slow drains and standing water after using a faucet or shower.
  • Sewer odors throughout the home.
  • Gurgling sounds coming from your pipes.
  • Pipe backupsSinkholes in your yard.
  • Cracks in your home's foundation.
  • Increased presence of pests like rodents and bugs near your home.

Warning Signs Your Sewer Line Needs to Be Replaced

What is the life expectancy of a sewer line?

The Life Expectancy of Your Sewer Line

PVC piping is light, waterproof, and long-lasting. Clay pipes can last 50 to 60 years, while PVC pipes can last more than 100 years. However, sewer lines often experience issues years before they reach their life expectancy.

How do I test my main sewer line?

Test Balls for Drainage Lines

To start the process, make sure your main line sewer cleanout is clear of debris and liquid. Next, insert the test ball and inflate it so that it blocks the main line. Fill the sewer system with water and observe the water level for 15-20 minutes.

Why is sewer line replacement so expensive?

Sewer work is expensive because of the labor-intensive process involved, which includes excavation, pipe removal, and installation of a new one. It requires significant manual labor and expertise, driving up the overall cost.

Do plumbers check sewer lines?

Professional plumbers can use various camera styles to inspect the sewer line, such as: Remote-controlled crawler cameras. Pole or fixed zoom cameras. Push rod cameras.

Can you replace a sewer line yourself?

While it's certainly possible for a homeowner to replace the sewer line from the house to the street, it's not going to be an easy job. It's going to require both knowledge and manpower because it needs to be done right, or it won't work properly.

Is sewer line replacement tax deductible?

As a general rule, sewer line repairs are considered to be standard home maintenance expenses, which means you are not eligible for a tax break on your personal income tax returns.

How much is sewer line insurance?

Sewer line coverage varies in cost but can generally be obtained for $5 to $15 per month, depending on your property size and the area in which you live. Because sewer line incidents often cost upwards of $10,000 to repair, many homeowners consider sewer line coverage a good investment.

How to fix a belly in a sewer line?

The only way to fix a sewer line belly is by using an open trench method, digging up the pipe and replacing the section that has sagged. The joints holding the pipes together are reinforced and the ground underneath is filled with the proper material to prevent future sewer line bellies.

What is the cheapest way to replace a sewer line?

Trenchless sewer repairs, such as pipe lining or pipe bursting, are typically 30-40% less expensive than traditional excavation and less invasive. Traditional excavation, which involves digging a trench to access the damaged pipe, is usually more expensive and can cause significant damage to your yard.

How do you tell if sewer line is clogged or broken?

When the sewer line that carries waste away from the house is blocked, you'll notice the four signs that follow.
  1. All Your Drains Reek. ...
  2. Your Drains Are Blocked or Slow-Moving. ...
  3. You Hear Loud Gurgling Sounds Coming From Your Pipes Throughout Your Home. ...
  4. You Have an Unnaturally Lush Landscape or a Smelly, Sunken Lawn.

Does replacing sewer line increase home value?

If your sewer line is damaged, it could delay or even halt a possible sale. Even if you do sell the property, you could have to accept a lower price or make concessions. However, getting trenchless sewer line repair done can improve the value of your place.

What is the difference between a sewer line and a drain line?

Main drains are located in the walls and floors of your home, while sewer line drains are located outside underground. Each drain pipe in your home is connected to a different household fixture on one end, including toilets, sinks and bathtubs, and the other end is connected to the main sewer line.

How long does a sewer line inspection take?

A normal sewer inspection usually takes about an hour. However, if there are intrusions, such as blockages of vegetation or clogs, it could take longer. The home might be in need of new pipes.

How do plumbers clear sewer lines?

How Professional Plumbers Clean Your Drains
  • Manual Drain Snakes. A manual drain snake, also known as a plumber's snake or a drain auger, is a small boring tool that rotates slowly as it's physically pushed through a stubborn clog. ...
  • Motorized Drain Snakes. ...
  • High-Definition Drain and Sewer Line Cameras. ...
  • Hydro-Jetting Machines.

How do I know when my sewer line needs replacing?

10 Warning Signs You Need Sewer Repair/Replacement
  1. Unwelcome Visitors. ...
  2. Higher than Normal Water Bill. ...
  3. Noticeable Wet Spots on Landscape. ...
  4. Foul Smelling Standing Water. ...
  5. Various Plumbing Fixtures Clogged. ...
  6. Unexplained Gurgling Noise Coming from Drain. ...
  7. Varying Levels of Toilet Water. ...
  8. Intrusion of Tree Roots.

How much does it cost to put in a new sewer line?

Contractors typically charge per linear foot for both the removal and installation of the new sewer line. In California, that cost can equal anywhere between $50-$250 per linear foot, with an average of around $150.

How long does it take to replace a sewer line?

Typically, to replace a sewer line it can take anywhere from 1 to 2 days, to 3 to 5 days. In some rare cases, it may even be as quick as one day. Generally, the estimated time frame will depend on the layout of your property, your home's piping system, and the depth required to excavate.

How do I know if I have a sewage problem?

Sewage-Like Odors Coming From The Drain

The purpose of your drains is to transport wastewater away and outside of your house. So, if you begin to notice any foul smell coming from the drains or any kind of persisting sewage smell in your home, this could be a telltale sign of a mainline sewage backup.

How do I fix my main sewer line?

Your step-by-step guide: How to clear a main sewer line clog
  1. Loosen the cap on the drain pipe. ...
  2. Allow any sewer buildup to come out of the drain. ...
  3. Gently feed the auger cable into the main line drain. ...
  4. Run the auger until the clog is broken up. ...
  5. Hose out leftover debris. ...
  6. Pull the auger cable back out of the main line drain.

What is the mirror test for sewer?

Light & Mirror Test

A light and mirror are sometimes used to ensure a new sewer main is straight with no unintended horizontal or vertical bends. The projection of a strong light through a straight sewer can be confirmed with a full circle of light visible at the end.

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