The Step-by-Step Process of Installing a Sewer Liner

Modern plumbing issues don’t always require digging up your entire yard. Thanks to trenchless technology, sewer liner installation has become a go-to solution for repairing damaged or aging sewer lines without the mess and expense of full excavation. But how does it actually work? Here’s a step-by-step breakdown of the sewer liner installation process so you know what to expect.

Step 1: Sewer Line Inspection

Before anything is installed, a plumbing technician conducts a thorough inspection using a specialized sewer camera. This helps identify the location, length, and extent of the damage. Whether it’s tree root intrusion, cracks, corrosion, or general wear and tear, this initial inspection ensures that a liner is the right solution for the job.

Step 2: Cleaning the Pipe

Once the problem area is pinpointed, the existing pipe must be cleaned. High-pressure hydro-jetting is commonly used to clear out debris, roots, grease, or buildup. This ensures the liner will adhere properly and the pipe is structurally ready for repair. A clean surface is critical for a successful installation.

Step 3: Measuring and Preparing the Liner

The technician measures the exact length and diameter of the damaged section of pipe. Then, a flexible liner made of felt or fiberglass is saturated with a special epoxy resin. This resin will cure and harden once the liner is in place, creating a strong, seamless new pipe within the old one.

Step 4: Inserting the Liner

The saturated liner is inserted into the pipe using a process called inversion. It is typically blown or pulled into place with air or water pressure. Once in the correct position, the liner is expanded using an inflatable bladder or other pressure technique to ensure it fits tightly against the existing pipe wall.

Step 5: Curing the Resin

With the liner properly in place, the resin must be cured to harden. This can be done using ambient air, hot water, or steam, depending on the materials used and the specific conditions of the pipe. The curing process generally takes a few hours and results in a rock-solid, jointless pipe.

Step 6: Final Inspection

After curing, the inflatable bladder is removed, and a final camera inspection is performed to ensure the new liner is fully sealed and properly installed. At this point, your new sewer line is ready to use, offering improved flow and a lifespan of 50+ years.

The Benefits of Sewer Liner Installation

Minimally invasive: No major digging or property disruption.
Cost-effective: Lower labor and restoration costs compared to full pipe replacement.
Durable: Resistant to corrosion, roots, and leaks.
Fast turnaround: Most projects are completed within a day.

Sewer liner installation is a smart solution for homeowners looking to extend the life of their plumbing system without the hassle. If you suspect issues with your sewer line, contact us at Eric’s Plumbing & Drain so one of our professionals can find out if trenchless repair is right for your property!