What We Do

Sentry is an EPC company, which stands for Engineering, Procurement, and Construction.  Our team can conceptualize, design, and ENGINEER a project, PROCURE all equipment, materials, manpower, etc. that the project requires, and finally CONSTRUCT the project itself no matter the size or industry. However, many times we work individually in each facet to satisfy all of our customers needs. From large general construction projects to preventative maintenance contracts we have the utmost passion for building lifelong relationships through Flexible, Innovative, Results.

Crane Services

  • Pump Jacks
  • Polish Rod Change
  • Tank Batteries
  • Fire Tubes
  • Compressors
  • Trusses
  • Steel Buildings
  • Roof Systems
  • Construction-Related Lifting
  • Commodity Storage

Welding & Fabrication

  • Mild Steel
  • Stainless Steel
  • Aluminum
  • Pipe Welding
  • Custom Fabrication & Design
  • Pressure Vessel Repair (R Stamp)
  • Vapor Line Stands
  • Load Out Stands
  • Pipe Stands
  • Cellar Covers

Mechanical

  • Roustabout
  • Mechanical Piping
  • Commercial Piping
  • Oil & Gas Piping
  • Flow Lines and Production Lines
  • Treater Plumbing
  • Well Head Plumbing
  • Gas Lift Construction
  • Containment and Liner
  • Natural Gas Generators
  • H2S Treatment Systems
  • Retro-Fits
  • Spill Containment and Removal
  • Flares

Construction

  • General Contracting
  • Pumping Unit Install & Tear-Downs
  • Tank Battery Layout & Construction
  • Saltwater Layout & Construction
  • Steel Structures/Framing
  • Concrete

Find out how Sentry can help you.

Engineering

  • 3D Battery Design
  • Custom Project Design
  • Steel Design & Fabrication Drawings
  • Product Development

Millwright

  • Certified Brock & Chief Grain Bin Dealer
  • Grain Bin Erection & Installation
  • Food Processing
  • Ethanol Systems
  • Gas Plant Storage/Transfer
  • Commercial Infrastructure Piping
  • Grain Transfer/Storage
  • Dairy

Manufacturing

  • Team Lodge
  • 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, South Dakota, and Minnesota
  • Commercial | Industrial | Residential
  • Controls & Automation
  • Low voltage
  • Control skids
  • Valve control

Service

  • Master Service Agreements
  • Pumping Unit & Treater Preventative Maintenance
  • Asset Warranty Preventative Maintenance
  • Quarterly Preventative Maintenance
  • Plant Shutdowns
  • Barn Service
  • Well Service
  • Well Watch
  • On-demand Service
  • Pressure Washing
  • Cattle Guard Cleaning

Get started with Sentry today.