Trenchless sewer line repair is a way to fix or replace the underground pipe between your house and the sewer connection without digging a trench along its whole length. A camera inspection comes first. Then the crew works through the cleanout or a small access pit and relines the old pipe or pulls a new one through it. In Dolton, IL, a driveway or front yard often sits on top of the line, so that can matter.
It is not magic. The method has to match the damage, and some damage still needs a shovel.
Trenchless against open-cut digging
Neither is better in the abstract. The pipe decides.
Trenchless repair
- Small access holes, so less lawn and pavement damage
- Often a shorter job on site
- Needs a pipe that is mostly intact and round
- Cannot fix a belly or a collapsed section
Open-cut digging
- Fixes bellies, collapses and badly offset joints
- You can see the pipe and the soil
- Cuts through lawn, driveway or landscape
- Usually needs restoration work afterward
The test is a camera run through the line. Our sewer inspection work gives you video and a clear picture of what the pipe looks like.
How the process unfolds
Whichever method suits your pipe, the sequence is similar.
Inspect and locate
A camera shows cracks, roots, offsets or a belly. A locator marks the depth and path above ground.
Clean the pipe
Roots and scale are cut or jetted out so the liner or new pipe can pass through.
Line or burst
For lining, a resin-soaked liner is pulled in and cured to form a pipe inside the old one. For bursting, a cone pulls new pipe through while breaking the old one outward.
Reopen and verify
Service connections are reopened, then a final camera pass confirms the new surface is smooth and watertight.
Camera not run yet?
Call the 24/7 line. We will schedule a sewer camera visit so you see the pipe before you pick a method.
When trenchless is a poor fit
A trustworthy contractor will tell you when to dig. These are the cases where it matters.
A pipe with a belly
A sagging section holds water. A liner follows the shape and keeps the sag, so waste still settles there.
A collapsed pipe
If the pipe has crushed or the pieces moved apart, there may be no path for a liner or cone.
A connection that must be rebuilt
Badly offset joints and sharp bends can stop the process cold.
A line that is too shallow or too deep
Very deep lines, or places where the pipe slopes the wrong way, may call for excavation.
Multiple heavy repairs
If the pipe fails every few feet, replacing the whole run may be the better value.
Call 811 before anybody digs
Illinois law requires calling JULIE at 811 at least 48 hours before digging so utility lines are marked, and the service is free. That applies to open-cut repair and to the access pit for a trenchless job. A reputable crew makes that call as a matter of routine. Ask to see the ticket number before the machine arrives.
The call tells you where the gas, electric and water lines run. It does not map your private sewer lateral, which is why the camera and locator matter.
What local flooding records mean for a sewer repair
The Cook County hazard mitigation plan for Dolton describes repeated basement flooding in several neighborhoods and says some of it comes from sewer backup during severe rain. It also proposes overhead sewer retrofits for about 500 homes. Those are proposals, not finished work.
A lined or replaced lateral keeps roots and groundwater out of your pipe, and that helps with your own line. It does not stop the village main from backing up in a big storm. Ask a plumber about a backwater valve or an overhead sewer for that. For questions on the sewer in the street, Dolton Public Works answers at 708-201-3280.
Source: Cook County hazard mitigation plan annex for Dolton, 2024, and Village of Dolton Public Works page.
What changes the price of a trenchless job
We do not print a number here, because three houses on one block can need three different jobs.
Standard homeowners policies often exclude sewer line damage unless an endorsement applies, so ask your agent. Want your real number? Call (773) 207-0518.
Questions to ask any sewer contractor
A short list keeps a sales pitch honest.
- Can I see the camera video that supports the method you recommend
- Why is lining or bursting right for this pipe, and why not digging
- Will you call JULIE 811 and share the ticket number
- Who handles the permit question, and which village office did you ask
- What does the warranty cover, and is it in writing
- Is your plumber licensed, and may I verify it with IDPH
Permits, neighbors and your next step
Permit rules vary, so ask the Dolton building department on the Housing and Permits line at 708-201-3261 before work starts. Check any contractor against the IDPH License Verification tool, since Illinois licenses plumbers through the Department of Public Health.
We also take sewer line calls from South Holland and Calumet City. If your pipe is the problem, our sewer line repair page lays out how we diagnose first and fix second.
Questions readers ask
Manufacturers cite long service lives for cured liners, but the figure depends on the product and on the host pipe. Ask for the written warranty and what it covers.
Only after the roots are cut out. The liner then seals the joints that let them in. If the roots have cracked the pipe apart, digging may be needed.
Usually not. A collapsed section blocks the liner and the cable. Open-cut repair is the likely answer.
Yes. If any pit or hole will be dug, the call must be made at least 48 hours in advance, and it is free.
Slightly. The liner has thickness, but a smooth new surface can still flow as well as or better than an old rough pipe.
Yes. A camera can be run through it, which is why we recommend a final pass after the repair and a record of it.