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CIPP Sewer Lining in Delaware County, PA

Cured-in-place pipe lining — CIPP — repairs a cracked, root-damaged, or corroded sewer line from the inside without digging up your yard. Advanced Drains and Underground Solutions installs UV-cured CIPP liners throughout Delaware County, restoring aging laterals to full function in a single day of work on most residential jobs.

Why Delaware County Laterals Need This

Delaware County’s housing stock is heavily concentrated in the post-World War II decades — the 1940s through the mid-1970s. That construction era used clay tile pipe for most residential sewer laterals. Clay tile is durable when intact, but it is a segmented pipe: individual sections joined with bell-and-spigot joints filled with mortar or lead that weathers and washes away over 50 to 80 years. Once a joint opens, roots find it. They enter the pipe as thin threads, expand through the wet environment, and build into a mass that restricts flow and eventually blocks it entirely.

Cast-iron laterals from the same era corrode from the inside. The pipe wall roughens, accumulating deposits that build up over time. CIPP lining works on both clay tile and cast-iron by creating a new smooth, continuous pipe surface inside the existing one, sealing every joint and eliminating the rough interior surface where debris catches.

What the CIPP Process Looks Like

Every CIPP job starts with a camera inspection of the full lateral from the house to the public main connection. The camera tells us the pipe diameter, material, condition, and whether lining is the right repair for the specific defects present. Not every pipe is a lining candidate: Orangeburg pipe — the bituminous fiber product used in some 1940s to 1960s construction — lacks the structural integrity to support a liner and requires full replacement instead. Heavily offset or collapsed sections may also need spot excavation before lining can proceed.

For pipes that qualify, we set up at the cleanout or create a small access point. The liner — a felt tube saturated with epoxy resin — is pulled into the pipe and positioned to cover the full repair length. An inflatable bladder holds the liner against the pipe walls while a UV light train cures the resin from inside. UV curing is faster than steam or hot-water methods and produces a harder, stronger end result. Once cured, the bladder is deflated and removed, and we run the camera through again to confirm full coverage and verify that the liner is smooth and bonded along its entire length.

What CIPP Fixes — and What It Does Not

CIPP is the right repair for root intrusion at clay tile joints, corrosion pitting in cast-iron pipe, hairline cracks, and minor offsets. It seals every entry point along the lined section and restores flow capacity. It is not a patch — a properly installed CIPP liner is a structural repair rated for decades of use.

CIPP will not fix a fully collapsed section, a pipe with severe displacement, or Orangeburg that has degraded past the point of structural support. In those cases, trenchless pipe bursting or open-cut replacement is the correct approach. We perform both and will tell you clearly which method fits your pipe’s condition after the camera inspection.

CIPP in Delaware County’s Municipalities

In Delaware County, the homeowner owns the sewer lateral from the foundation of the house to the tie-in point at the public main. DELCORA — the Delaware County Regional Water Quality Control Authority — operates the regional interceptor system, but the lateral from your house through your yard is your responsibility to maintain and repair. When a lateral needs work, permit requirements vary by municipality. We are familiar with the permit processes across Delaware County townships and boroughs and handle the paperwork as part of the job.

Frequently Asked Questions — CIPP Lining Delaware County

How long does a CIPP liner last?

UV-cured CIPP liners are rated for a 50-year service life under normal residential sewer use conditions. The liner is structurally independent — it does not depend on the original host pipe for support once cured. Installations we have done and inspected after several years show the liner holding its form and smooth surface without significant change.

Can CIPP be done in a pipe with bends or a cleanout fitting?

Most residential laterals have at least one 45-degree or 90-degree fitting where the pipe exits the foundation. CIPP liners are flexible enough to navigate bends in most configurations. We confirm the pull path on camera before committing to a liner length so there are no surprises during installation.

Will CIPP lining reduce the inside diameter of my pipe?

A CIPP liner does reduce the internal diameter slightly — typically a few millimeters in a standard 4-inch residential lateral. The smooth surface of the cured liner actually improves flow relative to a root-filled clay tile or corroded cast-iron pipe, so effective flow capacity often increases despite the nominal reduction in bore size. We confirm the post-lining diameter with the camera check at the end of every job.

To schedule a CIPP lining assessment anywhere in Delaware County, call 610-803-6851 or text 1-855-DONT-DIG. We serve all Delaware County municipalities and respond seven days a week.