FAQ
Trenchless Sewer Repair: Questions People Actually Ask
Including the answers that cost us work.
The basics
What does "trenchless" actually mean?
It means the failed pipe gets repaired or replaced without excavating a trench along its entire length. Instead of opening fifty or a hundred feet of yard, driveway and hardscape, we work through existing cleanouts or one or two small access pits. The pipe is rehabilitated from the inside, or pulled through from end to end.
How do you know whether my line can be lined or has to be replaced?
Camera footage, every time. A CIPP liner takes the shape of the pipe it cures inside, so it can repair cracks, root intrusion and open joints — but it cannot correct a line that has lost its fall, collapsed, or developed a belly that holds standing water. Those conditions need pipe bursting or conventional replacement. Anyone who quotes you a lining price without running a camera first is guessing.
How long does the work take?
Most residential sewer laterals are lined in a single day, with the actual cure taking a few hours. Pipe bursting usually runs one to two days because the access pits have to be dug, backfilled and compacted. Conventional replacement takes longer — two to five days depending on length and how much hardscape has to come out and go back.
Can I use my plumbing while the work is happening?
Not during the installation itself. For a typical residential job that means a single working day without sewer service. We tell you the window up front and, on multifamily and commercial jobs, we phase the work so the whole building is never offline at once.
My house is a rebuild but the sewer is original. Is that common?
Very. Rebuilds and major remodels frequently stop at the property line, leaving a seventy- or ninety-year-old clay lateral running out to the street underneath brand-new hardscape. It's one of the most common situations we're called for, and one where lining makes obvious sense — no one wants to trench a driveway they just paid for.
What is Orangeburg pipe and why does it matter?
Orangeburg is a bituminized fiber pipe — wood pulp bound with pitch — used in some late-1940s and 1950s construction. Under soil load it slowly deforms from a circle toward an oval. Most contractors will tell you it can't be lined and quote you a full excavation. That isn't our experience: we have lined hundreds of Orangeburg laterals successfully. What matters is how far the deformation has gone. Orangeburg that still holds reasonable shape lines well. Orangeburg that has flattened severely, collapsed, or lost wall sections needs bursting or replacement — and the camera tells us which one you have before we quote.
Durability and service life
How long does a liner last?
CIPP liners are rated by the manufacturer for a 50-year service life, and TSR backs the lining work with a 25-year warranty. The liner itself is a jointless, corrosion-resistant pipe with no bell-and-spigot connections for roots to enter — which removes the single most common cause of sewer failure in Southern California's older neighborhoods.
What warranty do you offer?
Lining work carries a 25-year warranty. That is separate from the liner's rated service life — the manufacturer rates the material for 50 years, and the warranty is our commitment on the installation. Ask any contractor for both numbers; a rated material life quoted as though it were a warranty is a common and misleading substitution.
Does lining make my pipe smaller?
Slightly, in raw diameter — a liner has wall thickness. In practice flow capacity usually improves, because the liner's smooth jointless interior has far less friction than the roughened, scaled, root-catching surface of an old clay or cast iron pipe. If your existing line is already undersized for the building, pipe bursting is the better option since it can upsize, typically from 4 inches to 6.
Will roots come back?
Not into a properly installed full-length liner. Roots enter through joints and cracks, and a cured liner has neither. If only part of a line is lined, roots can still enter the untreated section — one reason we generally recommend lining a full run rather than chasing individual defects when defects are scattered.
Process, permits and access
Do you need to get inside my house?
Usually only to access a cleanout, run a camera, or reach a building drain under the slab. Most of the work happens outside. For under-slab cast iron work using spin casting, access is typically through an existing cleanout or a small interior access point — still far less invasive than cutting the slab.
Do I need a permit?
In most Southern California jurisdictions, yes — sewer lateral work is permitted work, and requirements vary city by city. We handle permitting for the jurisdiction the property actually sits in, and we schedule the required inspections. If a city has additional requirements such as historic district review, we tell you before the work is scheduled, not after.
What happens to my landscaping and driveway?
With full-length lining and no pits required, nothing is disturbed. With pipe bursting, two access pits are excavated, backfilled and compacted, and the surface at those two locations is restored. Compare that to conventional replacement, where the entire run has to be opened and put back.
Do you work on commercial and multifamily properties?
Yes. Apartment buildings, HOA-managed communities, restaurants, and commercial property throughout Southern California. On occupied buildings we phase the work by stack or by building and schedule around business hours or tenant impact, which is usually the entire reason a property manager calls a trenchless contractor in the first place.
What areas do you serve?
All seven Southern California counties: Orange, Los Angeles, San Diego, Riverside, San Bernardino, Ventura and Santa Barbara. Orange County is home base, and we run county-specific dispatch numbers so your call reaches the crew closest to you.
Cost
Is trenchless cheaper than digging?
The pipe work itself is often comparable. The savings come from everything you don't have to rebuild afterward: driveway, walkways, patio, mature landscaping, retaining walls, irrigation, and in some cases interior flooring. On a property with finished hardscape and established planting, restoration is frequently the largest single line item on an open-trench estimate.
Why does the price vary so much between quotes?
Length, diameter, depth, number of bends, how many access points exist, whether cleaning and descaling is needed first, and whether the jurisdiction requires additional inspection. A quote that ignores those variables is not a quote, it's a placeholder. We price after we've seen the camera footage and located the line.
Still have a question?
Call the dispatch line for your county and ask. If it's a question we should have answered here, we'll add it.