What Is Trenchless Sewer Pipe Repair? 8 Things To Know

The literal meaning of “trenchless” is the absence of trenches. A trenchless sewage repair is an approach for fixing sewer lines that do not need excavating the building’s foundation or tearing out substantial sections of its walls and floors.

Trenchless pipe repair restores the structure of an existing canal from the inside by using the broken or deteriorated tube as a host. It is better than digging a messy, expensive trench, fixing the line the old way, and fixing the damaged surfaces. Given this technology’s benefits and long-term effects, trenchless sewer line repair is a favorable option.

Here Are The Four Most Common Ways To Fix A Sewer With A Trenchless Approach:

1. Spray Lining & Brush Coating

It is akin to the lining of a structural tube. Rather than using a felt liner, however, an epoxy or malleable polymer is sprayed into the damaged area.

2. Pipe Bursting


It is the simplest trenchless sewer substitution method to implement with accurate training. It requires simultaneously cracking the existing canal and making it bigger while substituting it with a fresh high-density polyethylene (HDPE) tube.

The old line will break when a “bursting top” or “bullet” gets into it; at the same time, the top will drag and lay a new tube behind it. Trenchless fixing methodology is environmentally beneficial when compared to the rest of the treatment techniques adopted in trenchless methods.

It replaces the old tube with an environmentally safe HDPE tube rather than contaminating the repair process further with extra chemicals or other substances. It prevents the environment from being continuously disturbed by construction works and replacements because HDPE tubes survive a long time. It uses long-lasting HDPE tubes of the highest quality.

In other words, a robust and superior product replaces sewer tubes that are damaged or broken.

3. Slip Lining

It is an alternative to trench digging for sewer system improvements. It necessitates lining the current tunnel with epoxy coating, thus generating an internal tube within the defective outer canal.

4. Cured-In-Place Pipe Lining OrĀ  “Cipp”

A pipe liner is a perfect, seam-free tube installed inside an existing pipeline. An epoxy liner is inserted into the broken passage to make it work. After that, applying a curing agent inside the liner causes it to bond to the tube’s inner walls. Constructing a new pipeline within the current one is a part of this procedure.

Here Are Eight Things About Emerging Technology That Everyone Should Know


Read below to find out about some essential things you should know.

1. Less Harm

It is frequently necessary to dig up a sizable piece of a yard to repair sewer pipes. As a result, repairs typically don’t require drilling holes in the floors, walls, ceilings, etc. It fixes the damaged region through apertures like roof vents, maintenance holes, and cleanouts.

Depending on the damage, traditional methods may include digging up floors and tearing down walls. The expense of repairing this kind of damage could be high. A few small pits dug outside, just enough to reach the line, can typically be used to complete the task.

2. Respects One’s Property

This technology focuses on repairing the damage by gaining entry to the plumbing system through small holes and existing cleanouts, often located outside one’s home, to replace damaged areas. With this corrective method, as minor damage as possible is done to the property.

3. Effortless Usage

Epoxy liners provide a smoother surface than many earlier materials, which may improve usability and drainage. A robotics specialist remotely operates a remarkable apparatus with live cameras that let the operator see within the sewer lines. The openings for reinstating make sure that the whole drainage system is fixed and working well.

4. Quick Job

The time between tasks is short. Typically, it takes 2-3 days to conduct this trenchless sewer fixation from beginning to end. In other circumstances, traditional treatments can take weeks.

5. Longevity


The mended pipes are strong. They are solid and corrosion-resistant, with a 50-year projected life. For instance, HDPE substitute tubes have over 50 years of life expectancy when used in pipe bursts.

6. It Only Sometimes Functions

A trenchless restoration is desirable, but there are more suitable alternatives. The extent of the line’s damage significantly impacts this technique’s effectiveness. For instance, if the tube is crushed, graded wrongly, or back-pitched, the repair techniques need to be more practical.

A trenchless approach is typically preferred if the damage is beneath the driveway or a brand-new pool. The best method for determining whether trenchless sewage replacement will be adequate for a particular issue is to contact a sewer replacement contractor. They will be able to tell you after they arrive and watch a video of the damaged canal.

7. Needs Skilled Technicians

Before beginning any replacement or repairing project, consider taking an opinion from qualified professionals. Qualified experts undergo training and certification to determine whether trenchless technology is appropriate for a project and to carry out the work professionally.

A company that claims to perform trenchless replacement may not employ skilled plumbers, leading to much more extensive repairs in the future.

8. Cost-Effective

The yard will only sometimes need to be dug up for trenchless sewer repair. And the property is undamaged. In that instance, restoring it to its initial state will only cost a small sum of money.

It can be expensive to restore damage caused by traditional sewer repair methods. Rarely will the cost of this service be greater than or on par with that of the conventional strategy.



Over the last two decades, no-dig this technology has been a boon to towns and municipalities that need to repair outdated infrastructure, such as aging sewer pipes. Trenchless technology is taking over conventional methods with ever-evolving trends and advancements. Choosing this technology means saving on cost and providing durable solutions to the problems apart from being environment friendly.