In a multi-story building the failing pipe is often inside the walls: cast iron stacks and roof drains corroding floor by floor. Lining rehabilitates them from the roof or the basement without opening a single wall.
Vertical Stack, Vent & Roof Drain Lining
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The multi-story problem
Hotels, hospitals, apartment towers, student housing and office buildings built with cast iron waste and vent stacks reach an age where the stacks corrode, scale up and start leaking into the floors below. Replacing them means opening walls and ceilings on every floor, relocating occupants, and weeks of construction. Lining rehabilitates the stack from an access point at the top or bottom, in place, while the building stays occupied.
What we line
- Vertical sanitary waste stacks and the horizontal branches that feed them.
- Vent stacks that have corroded through and are leaking sewer gas into the building.
- Roof drains and internal storm leaders that leak into walls and ceilings.
- Under-slab building drains connecting the stacks to the sewer lateral.
Why UV lining is the usual choice
UV-cured liners cure quickly and do not depend on holding hot water in a vertical pipe, so a stack can be lined and back in service in hours rather than a day. Branch connections are reinstated robotically from inside the stack, and a post-cure camera survey documents every floor.
Planning the work
We survey the building, camera each stack, and produce a floor-by-floor plan that schedules water shut-offs around your operations. Hotels and healthcare facilities typically see one stack lined per shift with the affected rooms back in service the same day.
Frequently asked questions
Do you have to open walls to line a stack?
No. Access is through the roof vent, a cleanout or the base of the stack. Walls stay closed.
Can you line a stack with many branch connections?
Yes. The liner covers them during installation and a robotic cutter reopens each branch from inside afterwards.
How long is a floor without water?
Typically part of a day for the stack being lined. We schedule the sequence with your operations team and keep the rest of the building running.
Call (877) 325-0180 or request a proposal. Commercial plumbing crews are on call 24/7 across Raleigh, Durham and the Triangle.
Reviews
Trusted by your neighbors
- Review from T. Craig D., Chapel Hill
T. Craig D., Chapel Hill
I just wanted to send a note thanking Dwayne Sandy for his careful work while installing my water line and interior plumbing fixtures. … Many thanks for the timely and professional work.
- Review from Joshua N.
Joshua N.
These two gentlemen in my opinion are great assets to your organization and represent it well. We look forward to a continued relationship with Progressive for all our plumbing needs.
- Review from Bhanu Das
Bhanu Das
Joe Oliveira stopped by my home, took time to understand the problem that I was having with the unit, went back and discussed the issue with his team of experts and had a detailed work order sent to me with in a day. … Based on the experience that I have had with Progressive Plumbing, Heating & Air, Electrical, I will HIGHLY recommend them for HVAC install and maintenance.