Start here
Quick, low-risk steps
- Stop using fixtures if you suspect a sewer backup.
- Get a full-length camera recording with defect footage and pipe material.
- Ask the contractor to mark the liner start and end points on the recording.
- Confirm who owns the pipe section—private or public—before work begins.
- Compare the lining scope with any needed surface restoration in one quote.
Is Your Pipe a Candidate for Lining?
Not every sewer line can be lined. A camera inspection must show the pipe is still round and has not collapsed. The pipe material also matters—some older materials may not bond well with the liner. A professional must measure the pipe diameter and check for offsets, sags, or heavy root intrusion that could prevent a successful lining.
The inspection recording is your evidence. Ask for a copy that shows the defect locations and the pipe condition from end to end. Without this, you cannot verify the contractor’s recommendation. A liner that is installed in an unsuitable pipe can fail early, leading to more expensive repairs later.
- The pipe must be structurally sound enough to hold the liner during curing.
- Collapsed sections, severe back-pitch, or open joints may rule out lining.
- Roots can be removed, but heavy root damage may require pipe bursting instead.
- Ask if the liner will reduce the pipe diameter and how that affects flow.
What a Lining Quote Should Include
A complete quote for CIPP lining covers more than the liner itself. It should detail how the contractor will clean and prepare the pipe, how they will bypass your plumbing during the work, and how they will reinstate lateral connections. The quote must also explain what surface restoration is needed, such as patching the access pit or repairing landscaping.
Permits and inspections are part of the job. In Chicago, the Department of Buildings may require a permit for sewer lining. The contractor should state who will obtain the permit and schedule the inspection. A quote that skips these steps may leave you with an unpermitted repair that causes problems when you sell the home.
- Cleaning method: hydro-jetting or mechanical cleaning before lining.
- Bypass plan: how your home’s wastewater is managed during the cure.
- Lateral reinstatement: how connections from your home are reopened.
- Cure method: hot water, steam, or UV light, and the time needed.
- Surface restoration: patching, concrete, asphalt, or landscaping.
Warranty and Long-Term Expectations
A CIPP liner warranty typically covers defects in materials and workmanship, but the length and exclusions vary. Some warranties are prorated, meaning the coverage decreases over time. Ask for a written warranty that states what is covered, for how long, and what voids the coverage. A common exclusion is damage from future root intrusion or ground movement.
The warranty should also explain how a claim is handled. Will the contractor send a camera to inspect the liner? Who pays for the inspection if no defect is found? A strong warranty includes a clear process and a reasonable response time. Keep all documentation, including the pre-lining video and the post-installation inspection, to support any future claim.
- Ask if the warranty is transferable if you sell the home.
- Check for exclusions like root intrusion, ground shifting, or improper use.
- Confirm the warranty length—some are 10 years, others are lifetime with limits.
- Get the warranty in writing before work starts.
Questions to Ask Before You Sign
Before you agree to lining, ask the contractor to walk you through the camera recording and point out every defect. A trustworthy professional will explain why lining is the best option and what the risks are. If they cannot show you a clear, continuous recording, consider getting a second opinion.
Also ask about the crew’s experience with CIPP in Chicago. Local conditions, such as clay soils and frost depth, can affect the installation. A contractor familiar with Chicago’s permit process and inspection requirements can help the job go smoothly. Never rush a decision—take time to compare quotes and verify credentials.
- Can you provide a copy of the full camera recording?
- How many CIPP installations have you completed in Chicago?
- What happens if the liner fails during the warranty period?
- Will you handle the permit and inspection, and what do they cost?
- Can I see before-and-after photos of a similar job you completed?
Take this with you
Evidence and scope checklist
- Full-length camera recording with defect footage and pipe material
- Liner start and end points marked on the recording
- Cleaning method and bypass plan
- Lateral reinstatement method
- Cure method and estimated time
- Permit and inspection responsibility
- Surface restoration scope and materials
- Written warranty with exclusions and claim process
- Contractor’s Chicago CIPP experience and references
Common questions
What homeowners ask next
Can any sewer pipe be lined?
No. The pipe must be round and stable. Collapsed sections, severe offsets, or certain materials may make lining impossible. A camera inspection is required to determine suitability.
How long does CIPP lining last?
Manufacturers often claim a lifespan of 50 years or more, but real-world performance depends on installation quality, ground conditions, and usage. Ask the contractor for their warranty terms and any independent testing data.
Do I need a permit for sewer lining in Chicago?
Permit requirements vary by exact location and scope. The City of Chicago Department of Buildings is the authority. Your contractor should confirm whether a permit is needed and who will obtain it.
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.