Sewer systems aren’t something you think about until there’s a problem. But when groundwater infiltration and leaking joints begin driving up treatment costs—or worse, causing backups and damage—the issue becomes impossible to ignore. That’s where our lateral and mainline grouting services come in.
Grouting is one of the most effective, cost-efficient ways to stop leaks in sewer systems without tearing up streets, sidewalks, or yards. It’s a trenchless solution that seals pipes and surrounding soil, restores integrity, and extends the life of your system. Most importantly, it saves municipalities, utilities, and communities real money by preventing millions of gallons of unwanted flow from ever entering the system.
Why Grouting Matters
Every year, utilities spend millions treating clean groundwater that never should have entered the sewer system in the first place. This happens through cracks, leaking joints, and faulty lateral connections. Industry studies estimate that up to 60% of sewer overflows can be traced back to lateral lines alone.
When infiltration goes unchecked, the costs stack up quickly. For example, one 300-foot section of pipe with joint leaks can waste more than 10 million gallons of clean water a year. That’s money straight out of a utility’s budget in unnecessary treatment costs.
Grouting is the smarter solution. Instead of replacing or relining the pipe, GCU crews inject grout into the soil surrounding the leak. The material forms a durable, waterproof barrier that seals off infiltration points for decades. It doesn’t just stop the leak—it strengthens the soil around it, protecting the system for the long term.
Mainline Grouting Services
Mainline pipes are the backbone of every sewer system. If they’re compromised, the entire network feels the impact. With our mainline grouting process, GCU deploys specialized packers and CCTV technology to locate and test joints throughout the line. Any joint that shows signs of leakage is injected with precision-applied grout.
The process is quick, trenchless, and repeatable across long runs of pipe. Because the work happens inside the pipe, there’s no need for excavation or surface disruption. Communities don’t deal with torn-up streets, and utilities see immediate results: infiltration stops, pipes regain structural stability, and costs go down.
Lateral Grouting Services
Service laterals are often overlooked, but they’re one of the biggest contributors to infiltration and inflow. These smaller lines connect homes and businesses to the mainline, and when they leak, the effect is multiplied across entire neighborhoods.
GCU uses specialized lateral packers that allow our crews to access and seal lateral connections directly from the mainline. We can grout laterals up to 35 feet out, sealing cracks, joints, and the surrounding soil. This process eliminates a major source of infiltration without ever touching the homeowner’s yard or driveway.
For municipalities and utilities, addressing laterals is one of the most cost-effective investments available. By sealing these connections, we help stop the problem at its source, protecting treatment plants and budgets alike.
Long-Term Results You Can Count On
Grouting is often misunderstood as a short-term fix. In reality, the materials we use have been proven to last for decades. Studies show that acrylamide grout can remain stable and effective for more than 50 years. Unlike coatings or patches, grout doesn’t shrink or crack—it bonds with the soil and creates a permanent barrier against infiltration.
That means one service call with GCU provides long-lasting results and peace of mind. Our clients see measurable reductions in infiltration immediately, and the cost savings continue year after year.
Why Choose GCU?
When you choose GCU for grouting services, you get more than a contractor—you get a partner. We bring:
- Experience: Our crews have years of hands-on expertise working with municipalities and utilities of every size.
- Technology: We use industry-leading equipment and grout materials to ensure reliable, long-lasting results.
- Efficiency: Our trenchless methods minimize disruption while maximizing cost savings.
- Commitment: We stand behind our work and deliver solutions that protect infrastructure and budgets.
A Smarter Way Forward
Replacing sewer mains and laterals is expensive, disruptive, and often unnecessary. Grouting offers a smarter, faster, and more affordable solution. Whether it’s mainline joints, service laterals, or both, GCU’s trenchless grouting services deliver the results municipalities and utilities need to manage costs and protect infrastructure.
If infiltration is driving up your treatment costs or causing system failures, it’s time to take action. Contact GCU today and learn how our grouting services can deliver long-term protection without the expense of full-scale replacement.