What We Do
Crane Services
- Pump Jacks
- Polish Rod Change
- Tank Batteries
- Fire Tubes
- Compressors
- Trusses
- Steel Buildings
- Roof Systems
- Construction-Related Lifting
Welding & Fabrication
- Mild Steel
- Stainless Steel
- Aluminum
- Pipe Welding
- Custom Fabrication & Design
- Pipe Stands
- Pressure Vessel Repair (R Stamp)
- Vapor Line Stands
- Load Out Stands
- Cellar Covers
Roustabout
- Tank Battery Layout & Construction
- Saltwater Disposal Layout & Construction
- Containment and Liner
- Treater Plumbing
- Well Head Plumbing
- Flow Lines and Production Lines
- Flares
- Natural Gas Generators
- H2S Treatment Systems
- Gas Lift Construction
- Pumping Unit Install & Tear-Downs
- Retro-Fits
- Spill Containment and Removal
- Well Watch
- Pressure Washing
- Cattle Guard Cleaning
- Well Service
- Preventative Maintenance
Find out how Sentry can help you.
Engineering
- 3D Battery Design
- Custom Project Design
- Steel Design & Fabrication Drawings
- Product Development
Millwright
- Food Processing
- Ethanol Systems
- Gas Plant Storage/Transfer
- Commercial Infrastructure Piping
- Dairy
- Grain Transfer/Storage
Manufacturing
- Treater buildings
- Knockout skids
- Manifold buildings
- Pig launchers
- Custom skids
- Electrical skids
- Prefab pipe
- Separators
- High & Low Pressure Knockout Pots
- Scrubber Pots
- Pressure Vessels
Electrical
- Licensed in North Dakota and South Dakota
- Prefab wiring
- PLC
- Low voltage
- Control skids
- Valve control