Vertical Stack Relining reline multi-story drain stacks without demolishing your walls.

WHAT IT IS

What vertical stack relining actually repairs.

Vertical stack relining rehabilitates the main vertical drain stack — the cast iron pipe that connects multiple floors of a home, condo, or multifamily building. This stack collects every drain and toilet on each floor and runs vertically inside the wall cavity to the building drain below.

Conventional repair of a vertical stack requires demolishing the wall or ceiling on each floor where the pipe runs. In a two-story home, that means opening walls on both levels. In a condo or multifamily building, it can mean disrupting multiple occupied units.

Vertical stack relining inserts a resin-saturated liner from the top access point, navigates the full vertical run including any floor-transition offsets, inflates against the stack wall, and cures in place. The stack is relined without touching the surrounding structure.

Every vertical stack relining job begins with a camera inspection run from the top down — visualizing the full stack length, every joint, and every offset — before any liner is sized or ordered.

CATCH PROBLEMS EARLY

Vertical stack conditions that require relining before a full failure.

These four problems in a vertical drain stack are resolvable with vertical stack relining — but they become wall-demolition jobs if left until collapse.

• Leaking stack joints causing ceiling staining on lower floors

  Cast iron stack joints corrode and weep sewage into the surrounding wall cavity. Vertical stack relining seals every joint from the inside without opening the wall.
• Active corrosion inside a cast iron multi-story stack

  Hydrogen sulfide gas inside a drain stack corrodes cast iron from the inside. Relining stops the corrosion and adds decades of service life.
• Recurring slow drains across multiple floors simultaneously

  When every floor drains slowly in the same pattern, the restriction is in the vertical stack itself. Camera inspection localizes it; relining resolves it.
• Pre-renovation camera inspection finds interior stack failure

  A camera run before a renovation reveals stack condition that needs relining — better to know before walls open than after.

BEFORE & AFTER

Leaking cast iron stack relined — multi-floor symptoms resolved without wall demolition.

A 1952 Dilworth home with sewage staining on the first-floor ceiling directly below the second-floor bathroom. Camera found three failed joints in the stack inside the wall. Vertical stack relining sealed all three joints in a single day — no walls opened, no ceilings removed.