When a facility manager learns that a building’s pipes need work, the first concern is usually not the pipes. It is what happens to the tenants, the staff, and the daily schedule while the work is underway. Closing a floor, cutting into finished walls, and losing weeks of normal operation can add up to more than the repair itself.
That concern is much of the reason trenchless restoration exists. At NuFlow Midwest, we restore pipes from the inside, which changes what a project asks of the building around it. Here is what that tends to look like for a commercial property that has to stay open.
Getting In Without Opening a Wall
Traditional replacement starts with access. Reaching a pipe usually means opening a wall, a ceiling, or a floor, and the size of that opening is set by the pipe, not by convenience.
Lining works differently. We accomplish the restoration through double-entry access points, without the destruction to interior or exterior surfaces that comes with pipe replacement. In many cases, the access point can be any drain or clean-out line already in the building, which means we can often work from openings that are already there.
For an occupied building, that difference shows up right away. The footprint of the job stays small, and the parts of the building people actually use tend to stay intact.
A Closed System, Working Around People
A second question in an occupied building is what the work puts into the air and onto the floors while people are still in the space.
Our pipe restoration process is safe and simple. It does not use toxic chemicals or mechanical devices, and it uses a closed system that is safe for use inside buildings and their surroundings. Removed corrosion products do not require special handling for disposal.
Cured-in-place pipe lining belongs to a broader family of trenchless rehabilitation methods, all designed to work inside existing infrastructure rather than dig it out. For a facility manager, that is often the difference between managing a plumbing project and managing a construction project.
One Riser Off, on a Schedule Everyone Knows
Lining does interrupt water service, and we would rather be direct about that. When we line a riser, water service to that riser does need to be turned off.
What matters in an occupied building is the scope of that shutoff and the notice around it. We build a schedule so occupants know in advance when their water will be off, rather than finding out the morning it happens.
That planning is often what separates a project people work around from one they complain about. It is also one of the things we establish during a building pipe assessment, before any work begins.
Fixtures and Finishes Stay Where They Are
One cost of traditional pipe replacement is easy to overlook at bid time. Accessing a pipe for replacement can mean tiles, drywall, and other finishes are removed, and the plumber may not restore them, which can leave you hiring another contractor to put the space back together.
With lining, fixtures and finishes do not need to be removed. For a commercial building with tenant improvements, lobby finishes, or materials that would be difficult to match, that can matter as much as the plumbing work itself.
How Long the Work Actually Takes
Duration depends on scope, so a single number is not much use. We publish timelines by type of work instead.
Most drain drops are completed in a single workday, and when drops sit close together we can line up to three in the same day. Drain drop liners cure in roughly four to six hours. For the main lining process, the pipe lining cures within 12 to 24 hours, after which we re-assemble the system and return it to service the next day. Individual pipe segments generally complete within two to three days.
The practical question for a facility manager is usually not how long the full system takes. It is how long any one area is affected.
Know What Staying Open Will Actually Require
Every building is different, and every plumbing system ages at its own pace depending on materials, usage, and maintenance history. The first step is the same either way. Before a schedule can be built, someone has to know what is happening inside the pipes.
Cured-in-place epoxy restoration is quick and involves little or no disruption to ongoing tenant, personnel, or public activities, and it alleviates the extended downtime and lost revenue that come with a longer job. A building pipe assessment gives you video inspection of all plumbing lines, a report detailing what problems were found, a decision on a lining solution, and an estimated cost of pipe lining.
Schedule a building pipe assessment with NuFlow Midwest to evaluate your system, explore your options, and plan the work around a building that stays open.