
Our Comprehensive Pipe Isolation and Freeze Plug Services
Focused Freeze Plug Solutions That Work When Valves Don’t
At Subzero Solutions LLC, our job is to keep your systems working—even when valves don’t. We handle pipe isolation using liquid nitrogen and liquid CO₂ for fast, safe control over shutoffs during repair or maintenance. We create strong freeze plugs that hold systems steady when valve isolation isn’t possible. We work with both emergency calls and planned projects. Our goal is always the same—get in, isolate fast, and keep the rest of your operation moving.




How Our Pipe Isolation Service Works
We offer two dependable isolation methods:
Liquid nitrogen for pipe diameters up to 12 inches
Liquid CO₂ for pipe diameters up to 6 inches
Each solution freezes the liquid in a section of pipe to form a tight plug. This allows repair or replacement without draining the whole system. The freeze plug holds while you do the work needed—then we thaw and move on. It’s a simple, proven method that keeps timelines short and avoids larger shutdowns. We bring the supplies and do the job on-site, so there’s no waiting around.
When to Use a Freeze Plug
Sometimes valves don’t exist—or they fail. That’s where our service steps in. Here’s when our freeze plug solution works best:
Valve breakdowns
No installed shutoff available
Time-sensitive repairs
Pressure-sensitive systems
This gives your crew the ability to fix the issue right where it’s happening, without pulling the entire system offline.


Who We Help
We serve a mix of operations and facility types. A few of the most common include:
Mining operations
Oil and gas pipeline systems
Commercial mechanical systems
Residential and city water lines
Every location requires a tailored approach. Whether it’s high-volume industrial pipes or smaller residential lines, we deliver the same care and fast action.
Safety and Service You Can Rely On
We stay available Monday through Friday, from 8 AM to 4 PM. Need us outside of that? We’re ready for emergency calls after hours as well.
Every freeze we start follows a clear checklist. We control pressure, temperature, and flow from start to finish. We don’t guess. We do the work by following tested procedures that protect the people and systems involved.
We’re based in Rock Springs, Wyoming, and support clients across the region with boots-on-the-ground service.


Let’s Take Care of Your Isolation Needs Now
If you’ve got faulty valves or a section that can’t be shut off, we’re ready to help. Whether it’s a scheduled upgrade or last-minute issue, we act fast and handle it safely. Don’t wait for a simple problem to become an expensive delay; start the conversation with us today about scheduling your pipe isolation service. We’ll show up with the right tools, right gas, and a plan that works. Let’s keep things flowing the way they should.


