How often should you clean out your main sewer line?

Author: Thelma Bode  |  Last update: Saturday, May 9, 2026

We recommend homeowners schedule sewer line cleaning every 18 to 24 months to prevent buildup and clogs. Regular cleanings help avoid costly repairs and extend the life of your plumbing system.

How often should I clean my main sewer line?

A sewer service provider will typically recommend that homeowners clean their primary sewer line every three to five years. This is because the sewer line can accumulate debris, like tree roots, which can cause major blockages or damage to the pipes.

What is the average cost to clean out a sewer line?

The national average rate for sewer cleaning prices ranges between $200 and $600, with most people paying around $250 for a main sewer line cleaning with minimal-to-no excavation to access the cleanout. This project's low cost is $150 for light-duty professional sewer cleaning with a snake.

How often do you have to clear roots from a sewer line?

Finally, have your sewer line inspected every two years to identify a root problem. Be sure to have your sewer line inspected every two years, especially if you've had issues in the past. Hire a plumber or a drain-cleaning or sewer service company to 'scope' the line and identify any problems.

How long do main sewer lines 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.

Plumbline Services: How Often Should You Clean Your Sewer Line?

How do you tell if your 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.

How do I clear my main sewer line in my house?

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.

How much does hydro jetting cost?

Hydro jetting costs $475 on average but range from $350 to $600. A plumber can give you a quote and get rid of your sewer clog. Having to keep your plumber on speed dial is no fun for any homeowner. If chronic sewer clogs are giving you issues, it might be time to call in the big guns.

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.

Does root killer really work?

The root-killing solution will come into contact and kill the bottom layer of root growth, but this will not completely restore your sewer line flow. A tree root killer could help for a quick temporary solution, but it is not the answer to the bigger problem.

Does insurance cover sewer line replacement?

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.

Do all houses have a sewer cleanout?

A lot of people think they don't have sewer cleanouts. But as I said, pretty much all homes do these days. It's more likely that your sewer cleanout is buried, often in a flower bed area. People cover up the cleanout because they think it's an eyesore.

How much does Roto Rooter charge to clean drains?

Roto-Rooter costs $100 to $600 on average for minor fixture repairs or clogged plumbing. Roto-Rooter rates for fixing a toilet or sink are less than for unclogging drains and sewer lines. Plumbing services for emergencies like burst pipes cost $1,000 to $3,500.

How much does a sewer line cleanout cost?

According to a . net plumbing job estimator, the national average charge for a professional to service your sewer line is $196-$289. The lower end for a straightforward drain cleaning is $55, with the maximum around $1300.

How do you know when your sewer is full?

Toilets Flush Slowly

You might find that your toilet doesn't fully flush or flushes very slowly and odd noises occur when you flush your toilet. These noises usually sound like gurgling or bubbling. Additionally, the water in your bathtub or shower takes much longer to drain than normal.

How often should I inspect my sewer line?

Because sewer line inspections are so thorough and a great preventive measure, it's generally recommended you have a sewer line inspection at least once a year. It's also recommended you have a sewer inspection when buying a new home. You need to make sure the sewer line health is satisfactory.

How can I find out how deep my sewer line is?

Your sanitation district will be able to tell you the approximate depth by going off the plats of how that sewer system was laid out, along with all the laterals, manholes, turns of direction. Everything in Plumbing can be repaired or replaced.

How deep is a sewer cleanout?

The sewer cleanout is capped off with a cleanout cap where the pipe is open above ground. Whether your sewer line is 8' deep or 3' deep it doesn't matter. The section of pipe that is extending the sewer opening above ground will give access to your sewer line without having to dig up your sewer line.

How deep are septic tanks buried?

The septic tank is often buried about six feet deep and ten feet away from the building.

Is sewer jetting worth it?

Regular sewer jetting can eliminate clogs before they become full on blockages. We also recommend that you jet the sewers when you move into a new home, as you never know what condition the sewer line was left in by the previous owner.

Why is hydrojet so expensive?

Why is hydro jetting so expensive? Hydro jetting is usually pricier than other options, including snaking and chemical drain cleaners. This is because there is expensive technology, plus a very advanced level of skill required.

Is hydro jetting better than snaking?

Typically, professional plumbers will start with a snake, since most clogs are relatively minor. But hydro jetting may be the best option for clogs in multiple drains or severe clogs that continue to recur.

How often should you flush your sewer line?

Expert Recommendations for Sewer Line Cleaning

We recommend homeowners schedule sewer line cleaning every 18 to 24 months to prevent buildup and clogs. Regular cleanings help avoid costly repairs and extend the life of your plumbing system.

Why should you never use baking soda and vinegar to unclog a drain?

The fizzing reaction and gas created may help loosen some small blockages. However, it is not typically strong enough to break down larger clogs or remove hard-to-reach debris. As a result of the above facts, if you have a serious drain clog, using baking soda and vinegar is unlikely to be effective.

How much does a plumber cost?

Average Flat Rate

Some plumbing jobs are billed at a flat rate. As of 2025, the average plumber rates for larger repairs are typically between $500 to $800, while smaller jobs like repairing toilets, sinks, faucets, or bathtubs typically range from $125 to $350.

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