Start here
Quick, low-risk steps
- Stop using water fixtures if you suspect a sewer backup.
- Get a camera inspection with a recording and defect location.
- Ask the contractor to explain which trenchless method they recommend and why.
- Confirm who owns the pipe section and whether a permit is needed.
- Compare quotes that include surface restoration and warranty details.
What Is Trenchless Sewer Repair?
Trenchless sewer repair fixes underground pipes without digging a long trench. It uses small access holes to insert a new liner or pull a new pipe through the old one. This can save your yard, driveway, and landscaping from major damage.
The two common methods are pipe lining and pipe bursting. Pipe lining creates a new pipe inside the old one. Pipe bursting breaks the old pipe while pulling a new one into place. Both require a camera inspection first to check the pipe condition.
- Less digging means less surface restoration cost.
- Not all pipes are good candidates for trenchless repair.
- A camera inspection is the first step to see if it will work.
- Ask about the warranty on materials and workmanship.
Pipe Lining (Cured-in-Place Pipe)
Pipe lining involves inserting a flexible tube coated with resin into the damaged pipe. The tube is inflated and cured in place, forming a new pipe within the old one. This method works well for pipes with cracks, small holes, or root intrusion, as long as the pipe is not collapsed.
The process usually takes a day or two. The new lining can last for decades. However, it slightly reduces the pipe diameter, so it may not be suitable if the pipe is already narrow or has severe misalignment.
- Works for cracks, holes, and root damage.
- Requires cleaning the pipe before lining.
- May not fix a collapsed or severely offset pipe.
- Ask how the contractor will handle service connections.
Pipe Bursting
Pipe bursting uses a bursting head to break apart the old pipe while pulling a new pipe behind it. This method can replace pipes that are collapsed or severely damaged. It can also increase the pipe diameter if needed.
Pipe bursting requires access pits at each end of the pipe run. It can be more disruptive than lining but still avoids a full trench. The new pipe is typically high-density polyethylene (HDPE), which is durable and resists roots.
- Can replace a collapsed or badly damaged pipe.
- May allow a larger pipe to be installed.
- Requires pits at both ends of the pipe.
- Ask about the impact on nearby utilities and landscaping.
Questions to Ask a Contractor
Before you agree to trenchless repair, ask the contractor to explain why they recommend a specific method. Request a copy of the camera inspection video and a written report showing the defect location and pipe material.
Make sure the quote includes all steps: cleaning, repair, utility locating, permit fees, backfill, and surface restoration. Ask about the warranty period and what it covers. A reputable contractor will answer these questions clearly.
- Can I see the camera recording and defect location?
- Why is this method better than digging for my situation?
- What permits are needed, and who gets them?
- How will you protect my property during the work?
- What does the warranty cover, and for how long?
Take this with you
Evidence and scope checklist
- Camera inspection recording and defect footage
- Pipe material and diameter
- Length, depth, and access points
- Cleaning or preparation needed
- Repair method and materials
- Utility locate (call 811 before digging)
- Permit and inspection requirements
- Bypass or occupancy impact
- Backfill and surface restoration
- Warranty and exclusions
Common questions
What homeowners ask next
Is trenchless sewer repair cheaper than digging?
It can be, because you save on surface restoration like replacing a driveway or landscaping. But the pipe repair itself may cost more. Get quotes for both methods to compare the total cost.
How long does trenchless pipe lining last?
Manufacturers often claim 50 years or more, but the actual lifespan depends on installation quality and ground conditions. Ask your contractor about the warranty and what factors affect durability.
Do I need a permit for trenchless sewer repair in Chicago?
Most sewer repairs in Chicago require a permit from the Department of Buildings. Your contractor should handle this, but you can verify current rules on the city website.
Evidence
Sources used for this guide
Research checked July 31, 2026
- 811 Before You DigCommon Ground Alliance
Utility-location education before excavation; not a substitute for local permits.
- Trenching and excavation safetyOccupational Safety and Health Administration
Professional worksite safety and a strict no-entry boundary for homeowners.
- Department of BuildingsCity of Chicago
Starting point for current Chicago permits and inspections.
Optional next step
Need an on-site professional?
Use the guide and worksheet first so you can describe the situation and compare the full scope. A referral is optional; you can also contact a licensed local provider directly.
We have not enabled a provider route for this site. Use the checklist to contact and verify local providers yourself; urgent hazards should go to the appropriate emergency or public service.