What Is Cured-In-Place Pipe Lining Installation & How It Works
Here in Ontario, we see a lot of older homes with sewer pipes that are starting to fail, tree roots sneaking through tiny cracks, joints shifting after decades of freeze-thaw cycles, even full-on collapses in spots. At Ontario Pipelining, we spend our days helping homeowners avoid the nightmare of a torn-up yard and weeks of messy excavation. One of the best tools we have for that is Cured in Place Pipe Lining installation, usually shortened to CIPP.
Instead of digging trenches, we create a brand-new pipe inside the existing one. Below we’ll explain what it is, how CIPP liner installation works, what makes it different from other repair methods, and answer the questions we hear most from our customers.
How the CIPP Process Works
Every project starts with a detailed camera inspection. We feed a high-definition camera through the sewer line so we can see exactly what’s going on, whether it’s root intrusion, a cracked section, or a sag that’s holding water. Once we’ve mapped out the damage, we clean the pipe thoroughly. Often that means using a powerful hydro-jet to blast away grease, sludge, or loose debris.
When the pipe is spotless, we prepare a flexible liner (typically a felt or fiberglass tube) that’s soaked in a two-part epoxy resin. We insert that liner through a single small access point and inflate it so it presses tight against the old pipe’s interior. Using hot water or steam, we “cure” the resin, which hardens into a tough, seamless pipe that essentially replaces the original from the inside.
After curing, we remove the inflatable bladder, leaving a smooth, joint-free pipe that’s rated to last 50 years or more. For most homes, the entire job, from the first inspection to a final camera check—takes about a day.
Why Homeowners Choose Cured in Place Sewer Lining
The biggest draw is obvious: no digging up the front lawn or cutting through driveways and walkways. But there’s more to it. The new pipe is one continuous piece, so there are no joints for roots to invade. The interior is also smoother than many original clay or cast-iron lines, which can actually improve flow.
For heritage homes or properties with beautiful landscaping, this trenchless approach is a lifesaver. We’ve installed cured in place sewer lining beneath patios, century-old trees, and even finished basements where excavation would have been impossible without major reconstruction.
Our Ontario Perspective
Over the years we’ve worked on everything from Toronto’s older clay sewers to newer PVC systems in the GTA suburbs. Freeze–thaw shifts are tough on pipes, and we see plenty of root growth in mature neighborhoods. With cured in place pipe lining, we can rehabilitate those lines in a single day and keep disruption to a minimum.
We’ve even handled tricky situations where sewer laterals run under large maple trees or through narrow city laneways. Traditional excavation would have required cutting through roots or removing entire gardens. Instead, we access the line through a small cleanout or basement entry and leave the property looking untouched.
A Few Honest Notes
CIPP isn’t a magic fix for every problem. If a pipe has collapsed completely or is severely offset, we may need to dig and replace a section before lining. That’s why the camera inspection is so important, we give homeowners an honest assessment and walk through all options before recommending anything.
Final Takeaway
If you’re facing sewer backups, slow drains, or unexplained damp spots in your yard, don’t assume a backhoe is inevitable. Ontario Pipelining specializes in no-dig solutions that create a new, code-compliant pipe within the old one. A single appointment for a camera inspection can tell you whether a cured in place pipe solution is the right move.
From start to finish, our goal is to make the process as straightforward and stress-free as possible. Whether you’re in downtown Toronto, Mississauga, or a small town in Southern Ontario, we’re ready to help you get a reliable sewer line without tearing up the place you call home.
Frequently Asked Questions
What is cure in place piping?
It’s simply another way of saying cured-in-place pipe lining. A resin-saturated liner is inserted into the old pipe and hardened to create a brand-new, watertight pipe inside the existing one.
What material is used in the cured in place liner?
We typically use a felt or fiberglass tube combined with a high-strength epoxy resin. Once cured, it forms a rigid, corrosion-resistant structure that meets Ontario building codes.
What’s the difference between cured in place pipe and slip lining?
Slip lining involves sliding a smaller rigid pipe inside the damaged one and then grouting the gap. That reduces the inside diameter and isn’t great for bends. Cured in place pipe conforms to the existing pipe’s shape, keeping more of the original flow capacity and sealing every joint.
Is CIPP lining worth it?
For most homeowners, yes. While the upfront price can be similar to traditional excavation, you avoid the cost of replacing landscaping, driveways, and sidewalks and you don’t lose weeks to a messy dig. The long lifespan and reduced risk of future root intrusion make it a smart investment.