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How Does Trenchless Sewer Line Replacement Work | Trenchless Triumphs [2024]


Our many visitors want to know How Does Trenchless Sewer Line Replacement Work. They want to know about this issue and try to solve it.

When faced with the daunting prospect of a broken sewer line, homeowners have traditionally cringed at the thought of extensive property excavation and the subsequent high costs associated with repairs. However, advancements in plumbing technology have ushered in a new era of efficiency and cost-effectiveness: trenchless sewer line replacement.

In this article, we will delve into the innovative methods of trenchless sewer repair, exploring the two primary techniques—pipe lining and pipe bursting—while shedding light on the overall process, its benefits, and whether it might be the right solution for your sewer line issues.

Also, if you need a professional plumbing company to solve this issue, don’t forget to contact the Plumbers Sherman TX company as soon as possible.

Trenchless Sewer Repair Methods

Pipe Lining

The first trenchless sewer repair method, known as pipelining, involves the use of a thin, flexible pipe liner infused with resin to fill and cover the interior of the damaged sewer line. A specialized winch tool guides the liner through the problematic segment, and once in place, the liner is inflated.

The resin hardens, creating a water-tight seal and effectively replacing the old sewer line while utilizing it as a support structure. This method is ideal for addressing minor leaks, small cracks, and general wear and tear.

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Pipe Bursting

The second method, pipe bursting, is a more aggressive approach that simultaneously breaks apart the old sewer line and replaces it with a new one. A robust, metal bursting head is propelled through the damaged sewer line using a powerful winch.

This bursting head shatters the existing line while pulling in a new, flexible pipe to take its place. While faster than pipe lining, pipe bursting leaves remnants of the old line underground and doesn’t address issues like poor structure or improper slope.

The Trenchless Sewer Repair Process

Even well-built sewer lines eventually succumb to wear and tear, cracks, and leaks. The trenchless sewer repair process involves several key steps:

Initial Sewer Line Inspection

A visual inspection using a camera is the first step, allowing plumbers to assess damage and determine the viability of trenchless repair. After inspection, the sewer line is cleaned to ensure a smooth surface.

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Digging Access Holes

Two access holes are dug—one at each end of the damaged sewer line. These holes provide entry points for the specialized tools used in the trenchless repair process.

Inserting the Resin-Coated Sewer Liner

A section of cloth pipe lining, saturated with resin, is attached to a specialized tool and pulled through the damaged section. Once in place, the liner is inflated, filling the space inside the damaged pipe, and left to dry.

Final Inspection

After drying, the new liner undergoes a final camera inspection to ensure proper installation, and if all checks out, the holes are sealed, and the property is restored.

What Is Trenchless Sewer Line Repair?

Trenchless sewer line repair, also known as “no-dig sewer repair,” has emerged as a minimally invasive and cost-effective alternative to traditional methods. It primarily encompasses pipe bursting and pipe lining techniques, both capable of restoring sewer lines without extensive digging.

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What Is Pipe Bursting?

Pipe bursting involves breaking and replacing the old sewer line with a new one made of high-density polyethylene. This method requires minimal digging, with access points created at both ends of the line.

What Is Pipe Lining?

Pipelining, or cured-in-place pipe lining (CIPP), utilizes a resin-coated sleeve or liner inserted into the old line and inflated. The resin cures, creating a new, sealed lining within the existing pipe.

Reasons to Use Trenchless Sewer Repair

Advancements in technology have made it easier to repair old sewer lines, and trenchless sewer repair comes with several advantages:

  • Minimal Property Damage: Trenchless methods cause less disruption to landscapes, sidewalks, and underground systems.
  • Access to Hard-to-Reach Places: Trenchless repair can reach areas under driveways and building walls.
  • Environmental Friendliness: Trenchless methods are less destructive to the environment and external features of homes.
  • Faster Completion: The minimal impact on soil or vegetation allows homeowners to continue living in their houses during repairs.

How Much Does Trenchless Sewer Repair Cost?

The cost of trenchless sewer repair varies based on location, the condition of the existing pipeline, and the chosen trenchless method. Traditional digging methods can range from $4,000 to $20,000, while trenchless options typically range from $3,000 to $12,000. Factors like the complexity of the job and labor costs also influence overall expenses.

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Pros and Cons of Trenchless Sewer Repair

The pros of trenchless sewer repair include minimal property damage, lower costs, faster completion, and longer-lasting results. However, it may not work for severely damaged pipes, and its suitability depends on factors such as accessibility and the extent of damage.

Is Trenchless Sewer Repair Right for You?

In most cases, trenchless sewer repair serves as a viable alternative to traditional methods. However, if pipes are only accessible through narrow spaces or are severely damaged, traditional trenching may be the better option. Hiring a licensed plumbing specialist with expertise in your area ensures the right method is chosen for your specific needs.

Types of Trenchless Sewer Line Repair

Directional Drilling

Directional drilling is employed when replacing or repairing the existing sewer line proves challenging or costly. It involves drilling a new tunnel for the sewer pipe several feet under the existing line.

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Trenchless Pipe Lining

Trenchless pipe lining, also known as CIPP, involves inserting a resin-coated sleeve into the old line, inflating it, and allowing the resin to cure, creating a new lining within the existing pipe.

Pipe Bursting

Pipe bursting entails breaking the old sewer line and simultaneously replacing it with a new one made of high-density polyethylene. This method is faster than pipe lining but leaves remnants of the old line.

What Is Trenchless Sewer Pipe Repair?

Trenchless sewer pipe repair eliminates the need for destructive digging to access and repair sewer pipes. It structurally restores an existing pipe internally, using the failed pipe as a host. This approach minimizes property damage and avoids the risks associated with traditional trenching.

How Trenchless Sewer Pipe Repair Works

The process involves a thorough inspection, cleaning, and the insertion of a flexible, epoxy-saturated tube into the existing drainage pipes. Once in place, the tube is inflated, and the epoxy cures to form a new structural line. This method is gentle on property, with minimal impact on landscaping.

Also Check: Meaning of PPR Pipe in Plumbing?


Trenchless sewer line replacement represents a groundbreaking advancement in plumbing technology, offering homeowners an efficient, cost-effective, and minimally invasive solution to address sewer line issues.

Whether opting for pipe lining or pipe bursting, the trenchless process provides a faster, more environmentally friendly alternative to traditional methods. If faced with sewer line problems, consulting with a licensed plumbing professional can help determine if trenchless sewer repair is the right choice for your specific situation.

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