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What Is Sewer Rodding? How It Clears Tree Roots from Your Pipes

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What is sewer rodding? How it clears tree roots from your pipes, shown with a rodding cable cutting roots in a sewer line

Sewer rodding is one of the most common ways plumbers clear a clogged main sewer line, and if you own a home in Chicago, there’s a good chance you’ll need it at some point. One of the main reasons you’ll need sewer rodding is because our city is full of beautiful, older buildings which are surrounded by an abundance of trees. Unfortunately these classically timeless buildings have aging clay and cast iron main sewer lines, which are prone to tree root intrusion. When your main line clogs, you’re not dealing with one slow sink. You’re dealing with water and sewage that have nowhere to go but back up into your home.

 

Sewer rodding accounts for 25% of the service calls we have dealt with here at Baethke Plumbing in the last 12 months, and a standard rodding service will start at $600. Primarily, we were called out to the Northwest Side of Chicago neighborhoods, which are known for having historical buildings and huge trees, and those trees have extensive root systems. Those roots infiltrate into the older cast iron pipes in the region, causing them to crack and break further. If you’ve noticed sewer odors, gurgling, or backups in your home, especially if you’re on the Northwest Side of Chicago, we might have some bad news for you.

 

Today, we’ll answer the three questions our clients ask us most. How to know if you need sewer rodding, whether it can remove tree roots, and how it’s different from hydro-jetting? By the end, you’ll know what to watch for, what to expect, and which option makes the most sense for your home.

 

Sewer rodding clears a clogged main sewer line by sending a spinning steel cable with a cutting head through the pipe. It’s the go-to fix for tree roots, the most common cause of sewer clogs in Chicago’s older homes. You likely need it when several drains back up at once, and hydro-jetting is usually the better choice when grease or sludge is the main problem. 

 

What Is Sewer Rodding and How Does It Work?

Sewer rodding, often called “snaking,” is the traditional, time-tested way to clear a blocked sewer line. A plumber uses a heavy-duty motorized machine to feed a flexible steel cable through a cleanout and deep into your main line. The tip of the cable has a specialized cutting head that spins rapidly as it moves through the pipe, breaking up clogs and cutting through obstructions.

 

How sewer rodding works: a machine feeds a spinning steel cable through the cleanout, and progressively larger heads clear the clog

It’s important to understand what rodding does and doesn’t do. Think of it like a hole punch. The cutting head opens a path through the blockage so water can flow again, but it doesn’t scrub the walls of the pipe clean. At Baethke, we use a progressive rodding method, making multiple passes with larger cutting heads to clear more of the blockage than a single pass would. Even so, some grease, sludge, or scale can remain on the pipe walls after rodding.

 

Why a Camera Inspection Comes First When Sewer Rodding

Before any sewer cleaning, a reputable plumber should perform a sewer camera inspection. This means feeding a waterproof video camera into your line to see exactly what’s causing the blockage and to check the condition of your pipes. 

 

This step matters because the right solution depends on what’s inside the pipe. A camera shows whether you’re dealing with roots, grease, a solid object, or a cracked or collapsing pipe. If a company wants to sell you an expensive cleaning without looking inside your line first, we recommend declining the service.

 

5 Warning Signs Your Home Needs Sewer Rodding?

A single clogged toilet or sink usually isn’t a sewer line problem. That’s typically a clog in one fixture’s drain. A main sewer line clog is different because every drain in your home flows into that one pipe, so the symptoms show up in more than one place.

 

  • Several drains are slow at the same time. If your tub, sinks, and toilets all drain slowly, the problem is likely further down the line.

 

  • Water backs up through your basement floor drain. The floor drain is usually the lowest opening in your plumbing, so it’s often where sewage appears first.

 

  • Gurgling sounds come from drains or toilets. Trapped air bubbling through the water is a sign the line isn’t flowing freely.

 

  • Water rises in one fixture when you use another. For example, the tub fills with water when you flush the toilet or run the washing machine.

 

  • Sewer odors appear in your basement or yard. A blocked line can push sewer gas back into your home.

 

Signs you need sewer rodding: several slow drains, floor drain backups, gurgling, water rising in fixtures, and sewer odors

If you notice any of these, call a plumber before the problem becomes a full basement backup. Cleaning up a sewage backup is almost always more expensive and stressful than clearing the line early.

 

Can Sewer Rodding Remove Tree Roots?

Yes. Tree roots are one of the main reasons Chicago homeowners need sewer rodding. Roots are naturally drawn to the water and nutrients inside sewer pipes. They work their way in through small cracks and loose joints. These roots can grow into thick masses that catch toilet paper and debris on its way out of your home, especially in the city’s older clay and cast iron lines.

 

Rodding is one of the most effective tools against tree root intrusion. The spinning blades act like an underground chainsaw, chopping through the root mass to restore flow.

 

However, the unfortunate truth is cutting roots doesn’t stop them from coming back. Once roots are cut, they can grow back larger. That’s why, when roots are the main problem, we recommend a RootX treatment after the initial rodding. RootX helps keep roots from growing back into your pipes for up to a year, so you’re less likely to need another costly rodding down the road.

 

At Baethke Plumbing we will apply RootX around six weeks AFTER a rodding or jetting to prevent tree roots from growing inside the main sewer lines. The initial treatment will clear three feet of space around the pipe area. Proper application will prevent roots from growing for about 12 months.

 

A typical RootX treatment starts around $400, opposed to a $600 (or more) rodding. Not only will this save you money in the long run by preventing more costly roddings, but it’s also less intrusive on your old clay pipes. We recommend you have one of our licensed plumbers do a Root-X treatment for you annually, especially if you live on the Northwest Side of Chicago.

 

How Is Sewer Rodding Different From Hydro-Jetting?

Sewer rodding and hydro-jetting both clear your sewer lines, but they work very differently.

Sewer Rodding vs. Hydro-Jetting

Feature Sewer Rodding Hydro-Jetting
How It Works Spinning steel cable with cutting blades Hose and nozzle blast water at 4,000+ PSI, scouring the entire inside of the pipe
Best For Tree roots and solid blockages, like a toy flushed down the toilet Grease, sludge, soap scum, and mineral scale
Pipe Safety Generally safer for older, fragile pipes Intense pressure can crack or collapse old, brittle, or damaged pipes
Starting Cost $600Lower upfront cost $2,000About 3 times the cost of rodding
Results Doesn’t clean pipe walls, so grease and sludge clogs can return quickly Leaves pipe walls clean, so results typically last longer

In short, rodding is usually the better choice for roots, solid objects, and older pipes, while hydro-jetting is best for grease and sludge in pipes that are structurally sound. Keep in mind that either method can potentially damage pipes that are very old or worn, which is another reason a camera inspection comes first.

 

Keep Your Chicago Sewer Line Flowing

Sewer rodding uses a spinning steel cable to cut through clogs, tree roots, and solid blockages in your main sewer line. If you’re dealing with slow drains throughout your home, gurgling toilets, sewer odors, or water coming up through your basement floor drain, your main line is likely telling you it needs attention. Don’t let a clogged sewer line put your home at risk. Schedule your sewer camera inspection or rodding service online today with one of our Baethke Plumbing technicians.

 

For Chicago’s older sewer lines, rodding is often the safest and most affordable way to get things flowing again, especially when tree roots are the problem. A standard main line rodding starts around $600. Pairing it with a yearly RootX treatment helps keep those roots from growing back. When grease or heavy buildup is the issue and your pipes are in good shape, hydro-jetting may be the better fit. 

 

Our advice is to always start with a sewer camera inspection. Seeing exactly what’s inside your line lets us choose the method that’s safest for your pipes, so you never pay for the wrong fix. And don’t wait for a basement backup to make the call. Clearing a slow sewer line early is always easier on your home and your budget.

 

For over three decades, Chicago homeowners have trusted Baethke Plumbing to keep their sewer lines flowing. As a family-owned company, we treat every home like our own. Our licensed plumbers will find the cause of your clog, walk you through your options honestly, and give you upfront pricing before any work begins.

 

For a deeper look at costs, risks, and when to choose a particular method of sewer line cleaning, read our article, Rodding vs. Hydro-Jetting: Which Sewer Line Cleaning Method Wins?

 

Sewer Rodding Questions We Hear Most

How often should a sewer line be rodded?

  • There’s no universal schedule. It depends on the age of your pipes and how close mature trees are to your sewer line. Homes with recurring root problems often need rodding every year, while lines without roots can go years between cleanings. A yearly RootX treatment can help stretch the time between rodding visits. 

 

Can sewer rodding completely clear out grease and tree roots?

  • Sewer rodding works well on tree roots, but not on grease. The spinning blades chop through thick root masses and restore flow right away, though roots can grow back without a treatment like RootX. Grease, fat, and oil are different: a rod only punches a hole through them, and because it can’t scour the pipe walls, the grease often closes back up. Grease-heavy blockages usually need hydro-jetting. 

 

How much does sewer rodding cost?

  • A standard main line sewer rodding in Chicago starts around $600. The final price depends on how severe the blockage is and how accessible the cleanout is. Baethke Plumbing gives you upfront, flat-rate pricing before any work begins. 
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Baethke Plumbing4.7
Based on 976 reviews
Randi Hall
1 day ago
I've hired Baethke Plumbing numerous times for my condo unit. I recently called them out to investigate a water leak in my kitchen. Donnie, the service technician, was prompt (8AM sharp!) and immediately found the source of the problem. Donnie provided me clear recommendations on how to resolve the issue. He was sincere and thorough throughout the visit and I appreciate Baethke's responsiveness overall.
Response from the owner:Randi, thank you for continuing to choose Baethke Plumbing for your condo. We’re glad Donnie arrived right on time, pinpointed the kitchen leak quickly, and walked you through clear options to fix it. We also appreciate your note about our responsiveness and the care taken during the visit.
Robert Galloway
4 days ago
Baethke Plumbing was prompt, sincere, timely, reliable, and friendly. It is easy to see why they are a trusted plumber near me. If great service had a favorite place, this would be it. Extremely helpful in solving our sump pump issue quickly and efficiently.
Response from the owner:Thank you, Robert, for taking the time to share this. We’re glad our team arrived promptly, treated you with care, and got your sump pump issue resolved quickly and efficiently. We appreciate your trust and are here anytime you need a hand.
Gladys Sanchez
4 days ago
I really appreciated how prompt, sincere, timely, reliable, and friendly Baethke Plumbing was. They made the whole experience easy and stress free. If you need a plumber, I would definitely start with them.
Response from the owner:Gladys, thank you for taking the time to share this. We’re glad our quick arrival, dependable work, and friendly service helped make the process simple and low stress. We appreciate the recommendation and we’re here anytime you need a hand.
Danielle Reed
7 days ago
Baethke Plumbing did a fantastic job! John the plumber was very friendly, kind, and knowledgeable. He did a great job, would hire again!
Response from the owner:Thank you, Danielle, for taking the time to share this. We’re glad John made the experience comfortable and was able to help with confidence and care. We appreciate the opportunity and would be happy to assist again anytime.
Jason Aspin
1 week ago
Isaac and Adam just inspected the drain line below our 100-year-old bungalow. They were very professional and took the time to explain the pipe's condition and the available repair options in language I could easily understand. Their willingness to answer questions gave me confidence in their recommendations. I was impressed and will ask for them again when it's time to repipe our house.
Response from the owner:Jason, thank you for the kind review. We’re glad Isaac and Adam could thoroughly inspect your drain line and clearly walk you through the pipe’s condition and repair options, especially in an older home like yours. It means a lot that their patience in answering questions helped you feel confident, and we’d be happy to send them again when you’re ready to repipe.
Bob Lyman
1 week ago
Josh was a pleasure to work with! He was professional and went above and beyond to help us with our plumbing issues.
Response from the owner:Thanks so much, Bob, for taking the time to share this. We’re glad Josh was professional, easy to work with, and put in the extra effort to get your plumbing issues sorted out. We appreciate you choosing Baethke Plumbing.
Mateo Forero
1 week ago
Great workmanship and friendly team, but expect to pay double and be billed for every single thing. I’m giving Baethke Plumbing 3 stars because while their technicians are genuinely kind, courteous, and do high-quality physical work, their billing practices are rigid to a fault. It’s no secret that Baethke is expensive. You can expect to pay roughly 2x what an average Chicago plumber charges. Honestly, I didn’t mind paying a premium upfront because the professionalism and craftsmanship are clearly there. In my case, I paid over $4,000 for the diagnosis and repair of a corroded copper pipe, and the invoice specifically noted that the line was water-tested afterward to confirm the leak was resolved. However, a week or two later, I still had water coming in and had to call them back out. It turned out there was another pinhole leak from corrosion just two feet further downstream on that exact same copper pipe. While I understand that their warranty only covers the specific section of pipe they replaced, they charged me an additional $800 just to diagnose and tell me that the exact same line still had a leak two feet away. When you pay over $4,000 to a top-tier company to diagnose and fix a leaking pipe, including a post-repair water test, you expect them to verify that the rest of that immediate run isn't actively leaking before wrapping up, rather than assuming the corrosion stopped right at the cut. More importantly, charging a customer $800 just to point out a missed pinhole two feet down the same pipe feels inappropriate given how much was already spent. Had the remaining leak been coming from a different source, I could understand but from the same pipe is a different story. Overall, Baethke is a good plumbing company with very nice people who do solid work. Just go in knowing that not only are their base rates exceptionally high, but they also bill strictly by the book for every step, even in follow-up situations where a little goodwill or common sense should apply.
Response from the owner:Mateo, thank you for taking the time to share your experience and for recognizing the professionalism and workmanship of our team. We understand your frustration with the additional diagnostic charge, particularly given the proximity of the second leak to the original repair. We appreciate you sharing your perspective on the situation, and your concerns regarding the follow-up visit and billing are important to us. We strive to provide quality service throughout every step of the process, and we appreciate you bringing this experience to our attention. I did review everything that Josh did and unfortunately, the untreated, Acidic Combustion Condensate that had been discharged for so long into that copper drain pipe has significantly thinned the pipe. It was 2 weeks later for that additional leak and we can't guarantee there won't be another unless all of the copper piping is replaced. That would be significant. If you would like to discuss this you are always welcome to call me either in the office at 773-276-5430, or on my cell at 773-447-4913. Thank you again.
Lisa Agona
2 weeks ago
Excellent service and skilled plumbing. Josh and his apprentice were outstanding. No shortcuts, precision in their work, accommodating. I was not looking forward to having work done due yo the cost of plumbing and the fear of shoddy work (past experience). This was the best plumbing experience I have ever had and it is worth every penny.
Response from the owner:Lisa, thank you for taking the time to share this. We’re glad Josh and his apprentice delivered careful, precise work and made the whole process feel straightforward and respectful. It means a lot to hear we helped ease your concerns and that the results felt worth the investment.
Not Woke
2 weeks ago
Great job. Recommended.
Response from the owner:Thanks for the kind words. We’re glad you were happy with the work, and we really appreciate you recommending Baethke Plumbing to others.
Carl Wesa
2 weeks ago
Baethke Plumbing was the right decision! John, who came out to do an inspection and a root clearing on my sewer main line, was on time, very friendly, and above all, honest. It’s tough out there as a homeowner and there are so many options to choose from. I’m glad I made the choice to go with Baethke because now I’ll never have to choose anyone else for my plumbing projects in the future. Thanks John, you da best!
Response from the owner:Carl, thank you for choosing Baethke Plumbing and for sharing this. We’re happy John arrived on time, treated you with respect, and gave you an honest inspection and root clearing on your sewer main line. We appreciate your trust and look forward to helping with any plumbing needs down the road.

Author Bio

John Baethke

John Baethke

Owner, Baethke Plumbing

John Baethke is the owner of Baethke Plumbing, a trusted Greater Chicago plumbing company known for exceptional customer service, technical expertise, and continuous employee training. With experience in modern plumbing and HVAC solutions, he is committed to delivering reliable, forward-thinking service. John also serves on several industry boards and committees and is a Past President of the Illinois Plumbing, Heating, and Cooling Contractors Association.

What Is Sewer Rodding? How It Clears Tree Roots from Your Pipes

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