Sewer line replacement cost in LA. Trenchless vs dig, per foot, permits.

The honest answer to "how much does a new sewer line cost?" is a range, and it's a wide one. A short, shallow line under a lawn can be replaced for a few thousand dollars. A long, deep line under a driveway, or one that has to be dug up because it sags or runs uphill, can pass $20,000. The difference comes down to your line's length, depth, method and what sits on top of it, and every one of those shows up on a camera inspection.

This guide is about cost. If you're still deciding whether your line needs replacing at all, start with signs your sewer line is failing and signs you need a sewer camera inspection. For how each method works, see trenchless vs digging and how trenchless pipe lining works.

Typical sewer line replacement costs in LA

These are published ranges from LA-area plumbers and cost guides, checked November 3, 2026. They're a sanity check for a quote you've been given, not a quote.

Why do the ranges disagree? They describe different lines. The low guides assume a short lateral with easy access; the higher ones include deep laterals, lines under driveways and hillside lots, which are common in Glendale and the Burbank hills. Alpha-Beta's guide makes the same point: two bids $6,000 apart are usually describing two different jobs.

Cost per foot: trenchless vs dig

Per-foot pricing is how most contractors think about the pipe itself. Here's what's published:

A quick example. Take a 50-foot lateral. At DN Builders' published rates, lining works out to about $6,750 to $9,250 and open trench to about $7,500 to $15,000 before anything is restored. That second number is the one that grows: HomeAdvisor puts yard landscaping after a sewer line job at $1,200 to $6,200, and replacing a section of concrete driveway or patio comes on top of that. That's why trenchless can cost more per foot and still win on the finished total, and why the trenchless vs digging guide says to compare finished totals only.

Trenchless isn't always possible, though. Lining needs a pipe that's still round to line, and neither lining nor bursting fixes a line that sags (a belly) or runs the wrong way. Those sections have to be dug and re-laid at the right slope. The camera decides which applies to your line.

What drives the price

• Length. Most LA laterals run from the house to a main under the street. Every extra foot adds pipe, labor and, on a dig job, trench and restoration.
• Depth. A line a few feet down is a different job from one eight feet down. Deeper trenches need more digging and shoring, and Alpha-Beta notes depth matters more than most homeowners expect.
• What's on top. Lawn is cheap to put back. A driveway, patio, mature trees or a retaining wall is not, and this is where trenchless saves the most.
• The pipe's condition and material. Older Valley and LA homes often still have clay or cast iron laterals (clay, cast iron and Orangeburg pipe explained). A line that's cracked but round may be lined; a collapsed or badly bellied one needs bursting or digging.
• Street work. If the damage is past your property line, under the sidewalk or street, the job needs more permits, traffic control and, in the City of LA, a bonded sewer contractor. That section is often the most expensive part.
• Hillside and access. Long runs with big elevation changes, narrow side yards and no room for equipment all add labor.
• Cleanouts. No accessible cleanout means one usually gets added. A+ Electric & Plumbing lists cleanout installation at $600 to $2,000; see sewer cleanout installation.

Permits, city fees and who owns the pipe

The whole lateral is yours. LA Sanitation says property owners are responsible for maintaining and repairing their entire private sewer lateral line, from the building all the way to the street connection. Burbank Public Works says the same: property owners are responsible for the maintenance of the sewer lateral that connects the building to the city main. So a quote should cover the full line to the main, not just the part in your yard.

City of Los Angeles. The Bureau of Engineering says an S-Permit is required to repair a damaged house connection lateral, and any work in the public right-of-way must be done by a contractor on the City's Bonded Sewer Contractor list. Published permit costs vary: A+ Electric & Plumbing lists a City permit at $150 to $500 and DN Builders Group lists permits at roughly $360 to $1,000. If a brand-new connection to the main has to be built, the City can also charge a Bonded Sewer Fee of $74 per linear foot of lot frontage, but that fee does not apply when the lot was already assessed for a public sewer connection. Ask whoever quotes your job whether it applies to you.

Burbank. A permit must be obtained for any work on the sewer lateral: a plumbing permit from the Building Division for private property, plus Public Works sewer and excavation permits for work in the city right-of-way. Two Burbank rules affect cost: Burbank's SLURP FAQ says lining is not permitted in the City right-of-way, while pipe bursting is an acceptable replacement method there, and it offers a $500 rebate when at least 10 feet of the lateral in the public right-of-way is replaced. The City also reimburses repair of a section crushed or displaced by a City parkway tree, up to its fee schedule limits, after inspecting the damage. More on Burbank's rules is on our sewer replacement page.

Glendale and other cities. Glendale, Pasadena, Santa Clarita and LA County areas have their own permit offices and fees. A bid that leaves permits out isn't a bargain; it's a bid that will change later.

How to compare sewer replacement quotes

1. Get the camera footage first and keep a copy. No footage, no quote. Camera inspections are priced in our sewer camera inspection cost guide.
2. Ask for the method and the footage in writing: lining, bursting, open trench or a spot repair, how many feet, and where the bad sections are.
3. Make sure the price is a finished total: permits, city fees, cleanouts, backfill, concrete and landscaping restoration, and the final camera run.
4. Ask what happens past the property line and who pulls the street permits.
5. Get flat-rate pricing in writing, not an hourly estimate, on a job this size. A second opinion on a five-figure number is always worth it.

Ways to keep the cost down

• Repair, don't replace, when the footage allows. One bad joint in sound pipe is a spot repair, not a new line.
• Clean first if it's roots in otherwise sound pipe. Many root-filled laterals can be cleaned and kept on a schedule; see tree roots in your sewer line and how often to clean the main line.
• Use the rebates you qualify for, like Burbank's $500 SLURP rebate for right-of-way replacement.
• Don't wait for a backup. Emergency excavation after sewage comes up a floor drain costs more than a planned job. If it's already happened, see what to do when the main line backs up.
• Buying a home? Get the line inspected before you close; see sewer inspection before buying a home.

Getting a price from Rooter Pros

Rooter Pros gives free estimates on sewer line replacement. We camera the full line to the city main, show you the footage, and give you flat-rate options in writing, trenchless or traditional, before any work begins. No overtime charges, day or night. Seniors, active military and veterans get 10% off; mention it when you call (818) 669-9019. See our sewer line replacement service or our honest pricing page for how we price.

Related: Sewer line replacement · Trenchless pipe lining · Trenchless vs digging · Sewer camera inspection · Signs your sewer line is failing · Clay, cast iron & Orangeburg pipe · What a sewer camera shows · Sewer cleanout installation · Sewer camera inspection cost · Broken sewer pipe symptoms · Main line keeps backing up · All plumbing tips · Serving Burbank, Glendale, Los Angeles & Santa Clarita

Ownership, permit and fee details are from LA Sanitation, the City of Los Angeles Bureau of Engineering and the City of Burbank's published pages. Prices in the tables are typical published ranges from other Los Angeles-area plumbers, contractors and cost guides as of November 2026; they are not Rooter Pros quotes and change over time. Sources are linked above.