Top 5 Common Sewer Line Problems Solved by Trenchless Technology

Sewer problems can quickly become a homeowner’s worst nightmare—causing nasty backups, foul odors, and even property damage. Fortunately, trenchless technology is revolutionizing how sewer lines are repaired across Toronto. It’s fast, cost-effective, and best of all, it solves most of the major issues without tearing up your yard.

In this post, we’ll break down the top 5 common sewer line problems and how trenchless repair technology—offered by the experts at ZeroDig—fixes them with ease.

1. Tree Root Intrusion 🌳

The Problem:

Tree roots are one of the leading causes of sewer line damage in Toronto’s older neighborhoods. Roots naturally seek out moisture and often invade small cracks in pipes, eventually causing severe blockages and breakage.

How Trenchless Tech Solves It:

Pipe lining (CIPP) creates a seamless, jointless pipe within the existing line—sealing out roots permanently. There’s no need to dig up your garden or remove trees.

2. Cracked or Collapsed Pipes

The Problem:

Over time, sewer pipes can crack due to age, soil movement, temperature shifts, or corrosion. Left unchecked, this can lead to complete collapse, requiring urgent repair.

How Trenchless Tech Solves It:

With pipe bursting, a new pipe is pulled through the old one while the damaged pipe is broken apart. The result: a brand-new, durable pipe that replaces the old one—without excavation.

3. Sagging or Bellied Pipes

The Problem:

Sewer lines can "belly" or sag due to shifting soil, poor installation, or heavy traffic above ground. Wastewater pools in the low spots, leading to frequent clogs and backups.

How Trenchless Tech Solves It:

A trenchless replacement ensures the new pipe has the correct slope and alignment. In some cases, targeted pipe bursting can eliminate bellies without needing to regrade the entire system.

4. Corrosion and Deterioration

The Problem:

Older homes in Toronto often have cast iron or clay sewer lines. Over the years, these materials deteriorate, causing rough pipe interiors, rust, and structural failure.

How Trenchless Tech Solves It:

Trenchless lining coats the inside of the existing pipe with an epoxy resin, creating a smooth, corrosion-resistant pipe that restores full functionality and flow.

5. Offsets and Misalignments

The Problem:

Ground movement, tree roots, or aging infrastructure can cause pipe sections to shift, resulting in misaligned joints (also called “offsets”). These gaps can catch debris and block flow.

How Trenchless Tech Solves It:

Trenchless repair eliminates joints by creating a continuous pipe that flows freely from end to end, reducing the chance of future blockages or shifting.

Why Toronto Homeowners Trust ZeroDig

At ZeroDig, we specialize in trenchless solutions that tackle all of these problems without the mess. Our local team uses the latest tools and inspection technology to assess your sewer line and offer the fastest, cleanest fix available.

✅ Zero digging✅ Same-day inspections✅ Long-lasting results✅ Fully licensed and insured in Toronto

Don’t Let Sewer Problems Get Worse

If you’re experiencing slow drains, foul odours, or soggy patches in your yard, it might be time to inspect your sewer line. With ZeroDig’s trenchless solutions, you can avoid digging, delays, and disaster.