Non-Invasive Foundation Plumbing & Utility Line Repair

When sewer, water, or gas line issues occur beneath your home’s concrete foundation, traditional repair methods often involve breaking through floors, tile, and slabs. This can be messy, costly, and highly disruptive to daily life. At Plumbing Solution Specialist, we provide under slab tunneling and directional drilling solutions that allow us to repair or replace underground pipes and utility lines without damaging your home’s interior.

What Is Under Slab Tunneling?

Under slab tunneling is a specialized method that allows our technicians to dig an access tunnel beneath your foundation to reach damaged sewer, water, or gas pipes. Instead of tearing up flooring, we tunnel from outside the home and work directly beneath the slab, making repairs safer, faster, and more cost-effective.

Services We Provide Under Slab

We handle all types of underground plumbing and utility line work, including:

  • Sewer Line Repairs & Replacements – Cracked, offset, collapsed, or root-intruded sewer pipes.

  • Water Line Leak Repair & Repiping – Corroded copper, leaking PEX, or failing galvanized pipes.

  • Gas Line Repairs & Repipes – Safe replacement of leaking or aging underground gas lines.

  • Directional Drilling & Boring – Ideal for precise line installation under driveways and foundations.

  • Traditional Trenching – Used when wider access is required for large-scale replacements.

  • Complete Line Mapping & Leak Detection – Ensures accurate diagnostics before excavation.

When to Consider Under Slab Tunneling

Signs you may need tunneling for sewer, water, or gas line repairs include:

  • Sewer backups, foul odors, or gurgling drains

  • Unexplained water pooling near the foundation or yard

  • Rising water bills from hidden slab leaks

  • Gas odors or loss of gas service (immediate safety concern)

  • Foundation cracks or settling caused by underground leaks

Benefits of Under Slab Tunneling

  • Non-Invasive – Protects your flooring and foundation slab from demolition.

  • Versatile – Works for sewer, water, and gas lines beneath the slab.

  • Cost-Effective – Eliminates expensive floor and concrete restoration.

  • Safe & Efficient – Our tunneling and directional drilling methods ensure minimal disruption.

  • Long-Lasting Repairs – We use only high-quality piping materials rated for decades of performance.

Why Choose Plumbing Solution Specialist

With years of expertise in sewer, water, and gas line repairs, our team has completed hundreds of under slab tunneling projects across Southern California. Whether it’s tunneling, directional drilling, boring, or trenching, we have the technology and skill to provide safe, reliable, and efficient underground repairs.

📞 Call Plumbing Solution Specialist today 888-96-PLUMBERS for a consultation on under slab tunneling for sewer, water, and gas lines. Restore your plumbing and utilities without tearing up your home.

Table of Contents

What Is Under Slab Tunneling?

South California homeowners understand the dreaded feeling of a plumbing or sewer line issue arising, only to be told fixing the problem will wreak havoc in the main rooms of their house.

Fortunately, under-slab tunneling is a convenient way to avoid this mess.

Under-slab tunneling is the practice of creating a tunnel underneath the foundation of a home where a plumber can crawl into and fix the issue at hand, without causing any damage to the inside of the home.

This work can be done by a professional foundation company; however, most foundation companies only do the tunneling without fixing the piping issues at hand. At The Best Repipe Company, we are licensed to do both tunneling and plumbing repairs in South California, making us your one-stop shop for these types of repairs.

When is Under Slab Tunneling Needed?

There are various cases where under slab tunneling is the most recommended option for repairs.

If you would like to avoid repairs occurring inside the home that could cause damage to your floors, under slab tunneling is the way to go. This also means staying in your home throughout the duration of the repair and avoiding the inconvenience of temporarily moving out.

The Best Repipe Company is here to answer any questions you may have about the use of under slab tunneling. Contact us today for help!

Benefits of Under Slab Tunneling

As mentioned above, there are many reasons why under-slab tunneling is a common practice. The main reason is to avoid damage to their home’s foundation and avoid in-home damage to flooring, walls, appliances, etc. It also protects the home from harmful materials that could enter through a broken slab.

Under Slab Tunneling Vs. Breaking the Foundation

Breaking the foundation is another common repair method that involves digging into the slab through the home. This method involves damaging the floor inside the home to reach under the foundation. Many homeowners dislike this method due to the noise, dirt, and damage it can bring to the inside of their homes.

This practice was most commonly used in the past, but many individuals now find under slab tunneling to be more convenient for sewer line repairs.

To avoid the mess of breaking your home’s foundation, contact The Best Repipe Company to schedule a consultation for our under slab tunneling service today!

The Best Repipe Company’s Under Slab Tunneling Process for South California

Many homeowners believe they can create a tunnel and fix the matter on their own. While some DIYers enjoy a challenging project, The Best Repipe Company strongly advises against taking on under slab tunneling alone. It is a dangerous practice that must be performed by a professional to ensure the safety of all residents in the home and quality plumbing adjustments.

If you choose The Best Repipe Company for your under slab tunneling project, our process will look like this.

    1. First, we will provide a free consultation to gain more information about the issue at hand. This is where we will discuss pricing and timeline for the project and address any questions the homeowner has. We will then schedule a day and time for the tunneling to begin.
    2. Once it is time for your appointment, our team will begin digging the tunnel to the broken sewer line outside of the home. Typical sizing of an under slab tunnel will depend on the affected area and required repairs. To avoid extra costs and wasted time, we will create the shortest path to the affected area.
    3. Next, our team will crawl under the tunnel to fix the plumbing issue at hand. This can be a very dangerous part of the process. Our professionals are trained and licensed to perform this practice. The safety of residents, neighbors, and our employees is our top priority with any tunneling project we handle.
    4. Once the issue is fixed, our team will take some time to close up the tunnel and finish the project.

To get started on this process, give us a call today!

Other Sewer & Draining Services in South California

Some of our other sewer & draining services available to the South California area include:

To view the full list of these services, check out our Sewer & Drain Replacement & Repair page.