Sewage Backing Up From a Broken Line
A sewer line that has collapsed or separated cannot be cleared into working order. If the cable stops at the same spot every time, or the camera shows a gap, the pipe needs repair. Call the 24/7 line, stop water use, and tell us what any earlier camera work found.
Keep everyone off wet floors and away from standing sewage. After-hours calls go to the same line as daytime calls, and we will talk through whether a temporary clearing can get you through the night. Ask about same-day options for a temporary clearing, since permanent lateral work needs permit steps first.
Spot Repair, Lining or Full Replacement
Repair is a decision between three paths. The right one depends on how much of the pipe is bad, what it is made of and what sits above it.
Lining or spot repair fits when
- Damage is limited to one section or a few joints
- The pipe is otherwise straight and holds its grade
- Digging would tear up a driveway, patio or mature landscaping
- Roots are entering at joints and the rest of the pipe is sound
- The camera shows no major bellies or collapses
Full replacement fits when
- The pipe has multiple breaks, offsets or long cracked runs
- A belly holds standing water and solids
- The pipe is collapsed, crushed or heavily corroded
- The material is failing, such as old fiber or deteriorated cast iron
- A lined pipe would leave the bore too small to serve the house
We do not push replacement when a smaller repair will do, and we say so when a repair would not last. A sound pipe with one bad joint should not be dug up end to end.
Cast Iron Pipe Repair and Trenchless Pipe Lining
Cast iron pipe repair
Cast iron was common for house drains and rusts from the inside. Scale builds up and narrows the bore, and the wall can thin until it cracks. Cracks and heavily scaled sections can be cut out and replaced with plastic pipe using no-hub couplings, or the whole run can be replaced. We look at the pipe by camera and by touch before recommending.
Trenchless pipe lining
A resin-soaked liner is pulled through the old pipe and cured in place, forming a new pipe inside the old one. It avoids trenching, so lawns and driveways stay put. It needs a pipe that is still in a straight, continuous path, and the pipe must be cleaned and checked before lining.
Pipe bursting
A bursting head pulls new pipe through the old path and breaks the old one apart. It works when the old pipe is too damaged to line. It needs entry and exit pits.
Open trench replacement
Digging remains the standard for pipes with bellies or heavy damage, since the grade can be reset. It is more disruptive, and it is the option most affected by what is on top of the pipe.
Got a camera report or a failed cleaning?
Tell us what the camera showed, and a plumber will go through your repair options by phone.
Permits, 811 and Ownership in Union City
In Union City, the owner owns the whole sewer lateral to the USD main, including under the sidewalk and street. A USD repair permit is required before any lateral work, even on private property, and digging in the street also needs a city encroachment permit. Call 811 at least two working days before any excavation, since it is free and required in California.
So the repair date depends on permit steps as much as on the crew, and the practical move is to start them early. Replacing a concealed defective pipe counts as new work needing a city permit and inspection, so ask the Building Division at 510.675.5313 how that applies to your job.
Source type: Union Sanitary District and Union City permit information
From Diagnosis to a Finished Repair
Confirm the damage
A camera run locates the break, shows the pipe material and measures how far it extends. Keep the footage, since it helps when you talk to USD or another contractor.
Choose the repair
We lay out spot repair, lining and replacement for your situation, with the trade-offs in plain terms.
Permit and utility locate
A USD repair permit goes in before work starts, and 811 marks the buried utilities. Street work also involves the city.
Do the work
Excavate, line or replace. We keep the line out of service as briefly as the job allows and tell you what water use to avoid in the meantime.
Inspect and verify
USD asks for notice 48 hours before inspection. After the inspection, a camera pass confirms the finished line.
What Drives Sewer Repair Cost
Related Work Nearby
If the problem is a clog rather than a break, start with sewer line cleaning. For grease or scale buildup, hydro jetting may be enough. If you are not sure the pipe is bad, a planned camera visit is the cheaper way to know.
We serve Union City and the neighboring Tri-City area, including Fremont.
Sewer Line Repair Questions
Yes. The line is answered 24/7, including nights, weekends and holidays. For a failed sewer line we can talk you through keeping water off, and ask about same-day options for clearing the line temporarily. The permanent repair requires permit steps, so it follows after that.
Yes. USD says the owner is responsible for the entire sewer from the house to where it connects to the main, including under the sidewalk and street.
A USD repair permit is required before any lateral work, even on private property. Digging in the street or right-of-way also needs a city encroachment permit. Ask the Building Division at 510.675.5313 about the city's rules for replacing concealed pipe.
811 sends utilities to mark underground lines before you dig. It is free, and in California it is required at least two working days before digging.
Localized cracks and rotted sections can often be cut out and replaced with plastic pipe. If the whole run is scaled and thin, replacing it is more sensible.
A resin-soaked liner is pulled into the old pipe and cured to form a new pipe inside it. It avoids digging, but the pipe must be cleaned first and in a condition that lining can bridge.
Not usefully. Lining follows the old pipe's path, so a sag stays a sag. Bellies are corrected by replacement that resets the grade.