Main sewer cleaning versus drain cleaning
A drain cleaning call usually involves one fixture and a small cable. Main sewer line cleaning clears the pipe that carries everything out of the house, usually four inches wide and fifty feet or more. It takes a heavier machine, bigger cutters and often a camera.
If your question is one slow sink, start with drain cleaning. If the basement floor drain is bubbling when you run the washer, the main is the likely culprit.
What to do when the main is blocked right now
These patterns almost always mean the main line, not a single fixture.
- Water rises in the basement floor drain or lowest tub when you flush upstairs.
- Several drains gurgle at once.
- The toilet bubbles when the washer drains.
- Sewage odor from a floor drain or cleanout.
- Call the 24/7 line. We book same-day appointments when available and after-hours dispatch for backups.
How a main line cleaning goes
We follow the same order on every main.
Find the access
We locate the cleanout or pull a fixture if there is none.
Cut through
A heavy cable with a cutting head opens the blockage.
Scour and flush
Roots and grease get cut away, and hydro jetting finishes the job when the pipe needs it.
Look with a camera
We check the line afterward when a blockage was heavy or has returned.
What usually blocks a main
The cause tells you whether cleaning is enough.
| Cause | How it shows up | What helps |
|---|---|---|
| Tree roots | Slow draining that returns every few months | Cut, jet and repair or line |
| Grease and wipes | Sudden clog after heavy kitchen use | Cleaning and a change of habit |
| Scale in old iron | Gradual slowing over years | Descaling jet |
| Offset or collapsed pipe | Cleaning never holds | Repair, see sewer line repair |
Disposable wipes labeled flushable still tend to catch in lines.
What the city does and what you do
The City of South St. Paul maintains the sewer main under the street, and wastewater goes on to the Metropolitan Council's treatment system. Everything from your house to that main is private and belongs to you.
The city asks property owners to contact the Utilities Division before hiring a drain cleaner and to tell the city after cleaning a private line. Public Works is at 651-554-3225 on weekdays and 911 after hours, and we can help you sort out which side of the property line the blockage is on.
What affects the price of sewer line cleaning
A main line price depends on the blockage and the equipment.
Homeowners policies rarely cover the line cleaning itself. Water damage from a backup is covered only with a sewer backup endorsement.
Sources for this page
Ownership and notification guidance comes from the City of South St. Paul's utility pages, including the statement that wastewater goes to the Metropolitan Council's treatment system. Pipe requirements follow Minnesota Rules chapter 4714 and the Uniform Plumbing Code (UPC).
Questions people ask
Yes. The 24/7 line is open every night and weekend, and we book same-day appointments when available for main line backups.
Only when it shows symptoms, unless you have recurring root problems, in which case a scheduled cleaning can prevent backups.
Yes, if the pipe still has openings at the joints. Lining or repair fixes the cause.
If it is in your private line from the house to the main, it is yours. If it is in the main in the street, the city handles it.
Chemical cleaners are rarely strong enough for a main line and can be hazardous to whoever opens the line later.
Yes, when the blockage was severe or repeated, a camera follow-up shows the pipe and rules out a break.