Repair Sewer Pipes From the Inside Out

Sewer Lining (Cured In Place) in Great Falls for cracked, leaking, or deteriorating sewer lines without excavation

Apple Valley Backhoe Service repairs damaged sewer lines using cured-in-place pipe lining, a method that creates a new pipe within the existing structure. You address cracks, joint separations, and minor collapses without digging up your yard, driveway, or basement floor. This approach is effective when the host pipe retains enough shape to support the liner and when excavation would be costly, disruptive, or complicated by weather or site access.


The process begins with a video camera inspection to identify the location and severity of damage. The line is then cleaned with high-pressure water to remove grease, roots, and debris. A resin-saturated liner is inserted into the damaged section and inflated or inverted into place, then cured with heat or ultraviolet light to harden into a smooth, jointless pipe. The result is a watertight interior that restores flow and prevents further infiltration or root intrusion.


If you are dealing with slow drains, sewage backups, or wet spots in the yard near your sewer line, a lining inspection can determine whether internal repair will solve the problem.

What Changes After a Sewer Line Is Lined

Before lining, the sewer line is mapped using a camera mounted on a flexible cable. This identifies offsets, cracks, and areas where roots have penetrated joints. The liner is custom-fit to the damaged section, and once cured, it bonds to the interior walls of the old pipe. The curing process typically takes a few hours, depending on liner length and method used.


After the work is complete, you will notice drains that clear quickly, no more backups during heavy use, and no sewage odor near the foundation. Apple Valley Backhoe Service performs a final camera inspection to confirm the liner is properly seated and fully cured. The new interior resists corrosion, root penetration, and the kind of joint separation that caused the original failure.


Lining is not appropriate for pipes that have collapsed completely, shifted out of alignment, or been crushed by external pressure. It also cannot correct improper slope or bellied sections that cause standing water. If the camera inspection reveals these conditions, excavation and replacement of the affected section may be required instead.

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What Homeowners Ask About Sewer Lining

Residents in Great Falls often want to know how lining holds up over time, what problems it can and cannot fix, and whether it works in older clay or cast iron lines.

What kinds of sewer damage can cured-in-place lining repair?

Lining is effective for hairline cracks, separated joints, small holes caused by corrosion, and sections with root intrusion, as long as the pipe has not lost its circular shape.

How long does a cured-in-place liner last?

Most liners are warrantied for twenty to fifty years and are designed to outlast the original host pipe, especially in systems subject to freeze-thaw cycles or aggressive soil chemistry.

Why is lining less disruptive than replacing the sewer line?

You avoid excavating trenches through yards, driveways, or basements, and you eliminate the need to restore landscaping, pavement, or structural slabs after the repair.

When is excavation still necessary?

If the sewer line has collapsed, shifted out of position, or developed a sag that traps water, the pipe must be accessed from above and either realigned or replaced.

How does freezing weather in Great Falls affect the lining process?

Curing requires controlled conditions, so lining is typically scheduled when temperatures allow proper resin activation and when the ground is not frozen solid, making access easier.

Apple Valley Backhoe Service starts every sewer lining project with a camera inspection to confirm the pipe is a suitable candidate. If you are experiencing persistent sewer issues and want to avoid major excavation, schedule an inspection to review your options and get a clear recommendation.