Trenchless Sewer Repair in Denver and Aurora

CIPP stands for cured-in-place pipe. A flexible liner saturated with epoxy resin is inserted into the damaged sewer pipe through an access point at the building cleanout. The liner is inflated against the interior pipe walls and cured in place using heat, steam, or ultraviolet light. Once cured, the resin liner has hardened into a rigid, seamless new pipe inside the old one.

The finished liner is structurally independent of the host pipe. It bridges cracks, seals joint gaps, and blocks root entry points.

What CIPP Lining Repairs

• Cracks and fractures in clay tile, cast iron, and concrete pipe where the pipe wall is present but compromised
• Root intrusions at joints where roots have entered through the joint gap but have not displaced the pipe sections
• Joint gaps where clay tile or concrete sections have partially separated but the pipe path remains continuous
• Pipe sections under slabs, driveways, or occupied areas where excavation would be significantly disruptive or destructive

This is the information most competitors omit. CIPP lining requires a structurally present host pipe. The liner must have something to bond to along the full section being lined. These conditions make CIPP lining the wrong method:

• Fully collapsed or missing pipe sections: The liner cannot bridge a gap where the pipe wall is absent. Collapsed sections require excavation and physical replacement before or instead of lining.
• Severe offset joints with large misalignment: A liner can bridge minor offsets. An offset large enough that the pipe centerlines no longer align cannot be lined. Physical repair of the offset is required first.
• Pipe bellies requiring grade correction: CIPP lining follows the existing pipe contour. It cannot correct a sag or re-establish grade. A lined belly is still a belly.
• Orangeburg pipe: Orangeburg has deformed and compressed over decades. Its interior surface is no longer a consistent cylinder that a liner can bond to. Replacement is the correct path.
• Active infiltration at liner access points: If groundwater is actively infiltrating the pipe at volumes that prevent liner placement and curing, the access condition must be addressed before lining proceeds.

Pipe bursting is a trenchless replacement method that replaces the existing pipe with new pipe rather than rehabilitating the existing one.

A steel bursting head, slightly larger than the outside diameter of the new pipe, is pulled through the existing pipe from a downstream access point to an upstream access point. As the bursting head moves forward, it fractures the existing pipe outward into the surrounding soil. A new HDPE pipe, attached to the back of the bursting head by a pulling rod, follows immediately into the path the bursting head has cleared. When the bursting pass is complete, the new pipe occupies the full route of the old one.

HDPE pipe installed by pipe bursting has no joints along its run. It enters at one access point and exits at the other as a continuous length. With no joints to offset or allow root intrusion, HDPE pipe installed by bursting carries a design life of 50 or more years under commercial loading conditions.

What Pipe Bursting Handles

• End-of-life pipe material: clay tile, cast iron, and early ABS where the pipe condition is too deteriorated for reliable lining but the pipe path is still passable for the bursting cable
• Multiple cracks and joint failures distributed across the run where CIPP lining would cover a failing pipe with a liner that may outlast the pipe’s ability to support it
• Commercial parking lot and driveway crossings where open-cut excavation of the full route would require significant surface restoration

The camera scope determines which method applies. This table covers the decision criteria for the most common commercial and residential property conditions we encounter in Denver and Aurora.

Denver metro’s specific soil, water, and infrastructure conditions affect whether trenchless methods work, which method is more appropriate, and what pre-job preparation the site requires.

Expansive Clay Soil and Seasonal Movement

Clay-rich soils found across parts of the Denver metro area can expand as moisture levels increase and contract as the soil dries. Repeated moisture-driven movement can place stress on aging sewer joints and contribute to separation, offsets, or gaps over time. These conditions may make CIPP lining appropriate when the host pipe remains structurally present, but the final method should be based on camera findings and site conditions.

CIPP liner material flexes with minor soil movement rather than cracking at joints the way clay tile does. In Denver’s clay soil, a CIPP liner installed in a structurally present pipe performs better over time than the host pipe would have continued to perform without lining.

Trenchless methods deliver their greatest cost advantage on commercial properties where the sewer route crosses active parking areas, shared driveways, or occupied building spaces where open-cut excavation would require significant surface restoration or operational disruption.

Parking Lots and Active Driveways

Pipe bursting on a commercial property where the sewer route crosses a parking lot requires only two access point excavations, one at each end of the run. Open-cut replacement would require a trench the full length of the route, closing the parking area and requiring asphalt or concrete restoration across the full trench. The surface restoration cost difference alone often justifies the pipe bursting method even if the pipe bursting cost itself is comparable to open-cut.

HOA Common Area Infrastructure

HOA sewer mains running through landscaped common areas are strong CIPP lining candidates when the pipe condition is suitable. Lining avoids disrupting mature landscaping, irrigation systems, and hardscaping that open-cut excavation would require removing and restoring. The post-lining camera verification provides the board with documentation showing the liner is correctly installed and the pipe is fully functional.

Occupied Multi-Unit Buildings

Multi-unit residential buildings can undergo CIPP lining on the sewer main with shorter service interruptions than open-cut work requires. A lining job completed in a single day, with drain service restored the same evening, causes significantly less tenant disruption than a three-day open-cut project requiring extended drain shutoff and site restoration. The advance scheduling notice required for occupied building work is shorter for a one-day lining job.

Step 1: Full Line Camera Scope

Every trenchless project starts with a full camera scope of the lateral. The footage documents pipe material, condition across the full run, the type and location of each failure, any offset or grade issues, and the condition at the city main connection. We assess whether the pipe condition is suitable for CIPP lining, pipe bursting, or neither.

Step 2: Method Recommendation With Written Options

We present the camera footage and our method recommendation in writing. Where both CIPP lining and pipe bursting are viable, we present both with pricing and explain what each involves for this specific property. Where open-cut work is the right answer, we say so and present that option instead.

Step 3: Pre-Lining Hydro Jetting (CIPP Only)

For CIPP lining jobs, we jet the full section being lined to a clean pipe wall and camera-verify the result before liner installation begins. This step is documented in the pre-lining camera footage and included in the post-job report.

• Both methods available, no default. We assess pipe condition and site factors and recommend the method that actually fits. We do not default to lining when bursting is appropriate, or push trenchless when open-cut is the right answer.
• Hydro jetting before every CIPP liner, no exceptions. A liner installed over a dirty pipe wall will delaminate. We jet before every lining job and camera-verify the pipe wall is clean before any liner goes in.
• Camera before and after every job. Pre-job footage establishes condition and confirms method suitability. Post-job footage verifies the result. Both are included in the written service report provided upon completion.
• Owned equipment, direct employee crews. Our crews and equipment are not subcontracted. The team that scopes the line, jets it, installs the liner, and signs off on the documentation is one company.
• 5-year transferable warranty on all CIPP lining and pipe bursting work. Transfers with the property through ownership changes.
• Commercial and residential capability. We work on residential laterals, HOA common area mains, apartment building sewer mains, and commercial building infrastructure. The method and equipment scale with the pipe diameter and site conditions.
• Free estimates and free second opinions. If you have an existing trenchless quote or have been told your pipe needs full open-cut replacement, we will scope the line and provide a second opinion at no charge.
• 927 Google reviews with a 4.9-star rating from residential clients, HOA boards, property managers, and contractors.

Sewer Lines Only scopes the line, identifies whether CIPP lining or pipe bursting fits the actual pipe condition, presents written options with pricing, and completes the work with our own crews and equipment from pre-lining preparation through post-job camera documentation.

Call 303-562-9800 for a free trenchless sewer evaluation or to schedule a camera scope. Free second opinions on existing trenchless quotes or open-cut replacement recommendations are available on request.

Use the contact form on this page for written scheduling requests. We respond to all trenchless inquiries within one business day.