Sewer Backup in Linden, NJ: Is It the City's Problem or Yours?
Updated October 20, 2026 · Local details for Linden, NJ 07036, with notes for Roselle
Who does what in Linden
| Who | What they handle | Contact |
|---|---|---|
| Linden Department of Public Works | Maintains over 130 miles of city sanitary sewer lines, plus 25 miles of storm sewer pipes and about 2,400 storm basins. Offers in-house sewer line clearing for $100 on weekday working hours. | (908) 474-8666 |
| Linden Roselle Sewerage Authority (LRSA) | Runs the wastewater treatment plant and interceptor sewers for Linden and Roselle. | 5005 South Wood Ave · (908) 862-7100 |
| You, the property owner | The plumbing inside the building, the cleanout, and generally the house sewer lateral that connects to the city line. | A licensed NJ plumber or drain service |
| Linden Construction Code Office | Plumbing permits for sewer line repair or replacement (plumbing subcode). | City Hall, 301 N. Wood Ave · (908) 474-8460 |
| Linden Engineering Division | Road Opening Permits for digging in a city street. County roads go through Union County; state roads go through NJDOT. | City Hall |
Linden's Housing Code says every stack, waste and sewer line in a home, "and every connecting sewer line," must be installed to state law and "maintained so as to function properly." Where exactly your responsibility ends (at the curb, or all the way to the main under the street) can vary, so ask DPW before anyone starts digging. Other NJ towns differ: Woodbridge and Livingston, for example, both put the full lateral on the owner.
Is it the city line or my line? Common signs
- Only your home is affected, and the lowest drain (often a basement floor drain or a downstairs toilet) backs up when you run water upstairs: usually a sign of a blockage in your own lateral.
- Neighbors on your street are having the same problem at the same time: more likely the city's line. Call DPW.
- One sink or tub is slow but everything else drains: probably a clog in that fixture's branch line, not the sewer.
- Backups keep coming back every few months, or you see gurgling and sewer odor: often tree roots, a sag (belly) or a broken section in the lateral. A camera inspection will show which.
These are typical patterns, not a diagnosis. Only a camera inspection or a check of the main confirms it.
What to do, step by step
- Stop using water. No flushing, showers, laundry or dishwasher until it's cleared.
- During DPW hours (6 am to 2:30 pm, Mon to Fri), call (908) 474-8666. Ask whether they can check the city line and about the $100 sewer line clearing.
- Nights and weekends, a private plumber or drain service is usually the fastest option. Ask for a camera inspection after clearing so you know whether there's damage.
- Find your cleanout (a capped pipe in the basement or yard). The plumber will usually clear the line from there.
- Take photos of any water or sewage damage and call your homeowners insurer.
- If the line needs replacing, make sure the plumber pulls the plumbing permit and, if they dig in the street, a Road Opening Permit.
Insurance and claims
- Many standard homeowners policies exclude sewer backup damage. Ask your agent about a sewer or water backup endorsement.
- Some insurers offer service line coverage that helps pay to repair the pipe itself.
- If you believe the city's main caused the backup, report it to DPW right away. Claims against a NJ public entity generally require a written notice of claim under the NJ Tort Claims Act, generally within 90 days. Notify your own insurer too.
How to prevent the next backup
- Never pour grease, fats or oils down the drain. Let them cool and put them in the trash.
- Don't flush wipes (even "flushable" ones), paper towels, diapers or feminine products.
- If roots are the cause, ask about regular root cutting or jetting, or relining/replacing the damaged section.
- If your basement keeps flooding from the sewer, ask a licensed plumber whether a backwater valve makes sense for your home (it needs a permit).
- Know where your cleanout is and keep it accessible.
Roselle homeowners
Roselle's sewage is also treated by the LRSA, but the local sewer lines in Roselle are a borough matter, not Linden's. Call Roselle's public works department to have the borough's line checked. Roselle plumbing help.
Frequently asked questions
Does the City of Linden clear sewer lines?
Yes. DPW advertises in-house sewer line clearing for $100 during normal working hours only (6 am to 2:30 pm, Monday to Friday). Call (908) 474-8666 and ask what's included.
Who pays to fix a broken sewer lateral in Linden?
Generally the property owner, since the owner is responsible for the connecting sewer line. Confirm with DPW where your section ends before excavation, especially if the break is under the street.
Do I need a permit to replace my sewer line?
Usually yes: a plumbing permit from the construction office, and a Road Opening Permit from the Engineering Division if the street is opened.
Is a sewer backup covered by insurance?
Only if your policy includes it. Many policies need a separate sewer backup endorsement.
Sources
- City of Linden: Streets & Roads (DPW sewers and $100 sewer line clearing)
- Linden Roselle Sewerage Authority: Contacts and service area
- City of Linden Code: Housing Code (connecting sewer lines)
- City of Linden: Road Opening Permits
- Woodbridge Township: Sanitary sewer responsibility and Livingston Township: Utility service line ownership
This guide is general information, not legal or insurance advice. Confirm details with Linden DPW, your insurer, or an attorney.
Sewer backing up in Linden right now? Call (347) 548-8487, our 24/7 line, and we'll work to connect you with an independent local drain and sewer provider. Sewer line repair details · Drain cleaning.