Can you replace a main sewer line yourself?

Author: Dr. Toni Wiza II  |  Last update: Tuesday, June 24, 2025

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.

Can a homeowner replace a sewer line?

Sewer line replacement usually requires homeowners to obtain a permit. If you hire a reputable professional, they'll know the local codes and can support you through the application process.

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.

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 long does it take to replace the main 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 to replace a main sewer line for ONLY $490

Can you replace main sewer line yourself?

As we mentioned above, it's certainly possible for a homeowner to perform sewer line replacement or sewer line repair. However, it's definitely not an easy job. When you replace the sewer line yourself you run the risk of causing even more damage.

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.

Is it hard to replace a sewer line?

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.

What is the difference between a main line and a sewer 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 deep are sewer lines buried?

For instance, residential sewer line depth ranges from 18 to 30 inches. However, city sewer line depths are different. Your city's sewer lines must always be deeper than the deepest residential pipe to allow waste to flow downhill. As such, these lines can go as deep as needed.

How many years does a sewer line last?

Generally speaking, you're going to find that most main sewer lines will only last somewhere between 50 and 100 years before you need to do a main sewer line replacement. You could very well have a broken sewer line on your hands right now and not even realize it.

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.

Can a sewer line be replaced without digging?

Pipe bursting is a method of repairing or replacing our sewer lines without digging trenches in the ground and wreaking havoc on your yard. It is not the only trenchless method, but it is one of the most popular options that avoid digging up the yard.

How does a plumber fix a main sewer line?

For traditional sewer line repairs, the existing pipe is removed and replaced with a new one. This involves gaining access to existing sewer lines. Interior repairs usually involve tearing out drywall and flooring to reach hidden sewer lines. Exterior repairs require digging a trench to access buried sewer lines.

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.

Does each house have its own sewer line?

All the drains in your home lead to one main sewer line, which goes into the municipal system or to your septic tank system. Knowing the location of your sewer line is crucial, especially when issues arise involving clogs, backups or breaks.

How to clear a main sewer line clog yourself?

Your step-by-step guide: How to clear a main sewer line clog
  1. Step 1: Loosen the cap on the drain pipe. ...
  2. Step 2: Open the cap and let the buildup drain out. ...
  3. Step 3: Feed the auger cable into the drain pipe. ...
  4. Step 4: Run the auger until the clog is clear—and beyond. ...
  5. Step 5: Hose down the pipe and auger cable.

Does the main sewer line always have water in it?

The second answer is NO: If you notice that drains are overflowing or making a gurgling noise or even sucking the water seal dry it would most likely point towards a fault in the drainage system.

How much does it cost to replace a sewer line in a house?

Cost Estimates

As we mentioned earlier, in the state of California, the cost of sewer line replacement can amount to anywhere between $50-$250 per linear foot, with an average of around $150.

Is a broken sewer line covered by insurance?

Does homeowners insurance cover your sewer line if it's damaged? Damage to your sewer line may be covered by your policy if it is caused by perils such as hail or windstorms, explosions, lightning or fire, damages caused by vehicles, vandalism or falling objects.

How long does it take to replace main sewer line?

The process might take hours to a day for straightforward repairs like fixing minor cracks or small blockages. However, the replacement could take days to complete (one to three days) if extensive damage has occurred , such as a collapsed line, a significant root intrusion or another plumbing emergency.

How do I know if my sewer line needs to be replaced?

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.

Should you repair or replace your sewer line?

Sewer line repair is recommended when there are cracks or holes in your sewer line. If damage is severe, replacement of the line is recommended. A pipe leak test must be performed, then there are two ways to proceed. The first is with trenchless repair.

What is the life of a sewer line?

A sewer line should last a lifetime – Normal sewer line life is 50 to 100 years. Sewer line integrity depends on how the pipe was originally installed, what's happened to the ground over time, and what surrounds the sewer.

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