How Much Does Sewer Line Replacement Cost in Los Angeles?
Replacing a sewer line in Los Angeles usually costs $3,000 to $7,000 for a typical 40 to 60 foot line. Trenchless replacement averages about $3,300, while traditional digging averages about $4,400. Long lines, deep pipes or lines under concrete can push the total well past $10,000.
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Cost by method
Camera inspection
$175 to $350
Finds the problem before you spend more
Trenchless lining or pipe bursting
$90 to $400 per foot
New pipe pulled through the old one, minimal digging
Traditional dig and replace
About $4,400 on average
Trench from house to street, more yard and concrete repair
| Method | Typical cost in LA | What it means |
|---|---|---|
| Camera inspection | $175 to $350 | Finds the problem before you spend more |
| Trenchless lining or pipe bursting | $90 to $400 per foot | New pipe pulled through the old one, minimal digging |
| Traditional dig and replace | About $4,400 on average | Trench from house to street, more yard and concrete repair |
What drives the price
- Length of the line. Most LA lines are 40 to 60 feet. Every extra 10 feet can add thousands.
- What's on top. Grass is cheap to restore. Driveways, patios and city sidewalks are not.
- Pipe condition. A pipe too collapsed to line needs pipe bursting, which costs more.
- City of LA fees. Replacements may need a Bonded Sewer Fee (about $74 per foot of new line) and street or sidewalk permits if work reaches the public right of way.
Signs your sewer line is failing
- Several drains backing up at once
- Gurgling toilets or sewage smell in the yard
- Soggy, unusually green patches of lawn
- Repeat clogs that come back after snaking
Many LA homes still have original clay or cast iron sewer lines that tree roots and earthquakes have cracked over the decades.
Repair or replace?
Always start with a camera inspection. One cracked or root-filled section can often be spot-repaired or lined. If the camera shows cracks along the whole run, replacing the line costs less than repeated repairs.
Frequently asked questions
Is trenchless worth it?
Usually, yes, when the line runs under a driveway, patio or mature landscaping. It costs more per foot but saves on restoring what's above the pipe.
How long does it take?
Trenchless jobs are often done in one or two days. Traditional digging can take several days plus yard restoration.
Who owns the sewer line?
Homeowners are generally responsible for the line from the house to the city main. Ask your plumber where your responsibility ends.
Get a free sewer line quote from a local plumber
Tell us what you need. Vetted plumbers in your area will reach out, usually the same day. No cost, no obligation.
Prices reflect Los Angeles area averages as of 2026. Actual costs vary by project.