CIPP Cured-In-Place Pipe Lining in Denver
An independent, licensed plumbing contractor. Not affiliated with Denver Water or the City and County of Denver.
CIPP lining installs a resin-saturated liner inside your existing sewer line and cures it in place, forming a new jointless pipe within the old one. No trench, no new pipe path, and no joints for roots to find.
- Jointless structural pipe formed inside the old line.
- Installed through a cleanout or a single access point.
- Seals cracks, root intrusion, and leaking joints in one pass.
- Requires a host pipe still holding its shape.
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What Cured-In-Place Lining Is
A flexible felt or fiberglass liner is saturated with a two part resin, then inverted or pulled into the host pipe and inflated against the pipe wall. Heat, ambient temperature, or ultraviolet light cures the resin until it hardens into a rigid pipe that takes the shape of the original line.
Once cured, the liner is a structural pipe in its own right. It bridges cracks, seals open joints, blocks root entry points, and provides a smooth interior that improves flow even though internal diameter drops slightly.
Service connections are reinstated with a cutter after the cure, which is why lining is used on both residential laterals and larger commercial and municipal runs.
(720) 935-6221Defects CIPP Lining Solves
- Longitudinal and circumferential cracking.
- Root intrusion at joints.
- Leaking or open joints allowing infiltration.
- Corroded cast iron with a sound remaining wall.
- Interior scaling and roughness restricting flow.
- Minor deformation the liner can bridge.
How We Diagnose It
When CIPP Lining Is the Right Method
CIPP is the right method when the host pipe is structurally continuous, holds close to round, and has correct grade. The liner follows the shape it is given, so it preserves the geometry of the line rather than correcting it.
It is a strong choice for long runs under driveways, foundations, streets, and mature trees, and for lines with many joint defects, because one liner treats the whole run rather than repairing each defect individually.
It is the wrong method when the pipe is collapsed, has a belly, has severe offsets that the liner would simply reproduce, or has lost so much wall that there is nothing to line against. Diameter loss also rules it out on lines already running at capacity.
Conditions That Rule CIPP Out
- Collapsed or crushed sections.
- Bellies and back-pitch, which a liner preserves rather than fixes.
- Offsets larger than the liner can bridge.
- Missing pipe wall leaving nothing to line against.
- Lines already undersized where diameter loss matters.
- Heavy scale or roots not fully removed before installation.
How a CIPP Installation Runs
- 1
Inspect and Measure
Camera inspection confirms the host pipe is a lining candidate and establishes exact length, diameter, and the location of every service connection.
- 2
Clean and Ream
Jetting, cutting, and reaming remove roots, grease, and scale. A liner installed over debris fails, so preparation is not optional.
- 3
Saturate and Install
The liner is wet out with resin and inverted or pulled into place, then inflated tight against the host pipe wall.
- 4
Cure, Reinstate, Verify
The resin is cured, service connections are cut back open, and a final camera pass documents the finished pipe before the line returns to service.
Talk Through the Method Before Work Starts
Disruption, Timeline, and Cost Drivers
Most residential liners are installed and cured within a single day, with the line out of service for several hours during cleaning, installation, and cure. Excavation is often limited to nothing at all when an existing cleanout can be used.
Cost drivers are run length, pipe diameter, how much cleaning and reaming the host pipe needs, cure method, the number of service connections to reinstate, access difficulty, and whether a cleanout has to be installed to get a launch point.
Lining is usually the lowest cost trenchless option per foot on a long run, but only where the host pipe qualifies. Preparing an unqualified pipe until it accepts a liner is how a lining project turns expensive.
- Lining wins on blocks where opening the surface costs more than the pipe work, which is the argument made on our Uptown and North Capitol Hill page
- On very long laterals a single continuous liner beats a run of patches, as explained on our Montclair page
Frequently Asked Questions
Related Methods and Services
Trenchless Sewer Repair
The umbrella page covering every no-dig and low-dig repair method we run.
Explore Trenchless Sewer RepairPull-In-Place Lining
A liner pulled into position from one access point for shorter defined runs.
Explore Pull-In-Place LiningPipe Reaming
Cutting the interior of a pipe back to full diameter before lining or cleaning.
Explore Pipe ReamingMethod Comparison and Cost Guide
Side by side comparison of every method, what drives cost, and what rules each out.
Explore Method Comparison and Cost GuideSee If Your Line Qualifies for Lining
Lining only works on the right host pipe. We inspect, then tell you which method actually fits.