Oilfield & Construction Services

From the start of the job to the final touches and from commercial construction to oilfield specialties, the Sentry team stands by our commitment to be the best.

Crane Services

  • Steel Buildings
  • Construction-Related Lifting
  • Polish Rod Change


  • Tank Battery Layout & Construction
  • Well Service
  • Preventative Maintenance

Welding & Fabrication

  • Steel and Aluminum
  • Pipe Welding
  • Custom Fabrication & Design


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

Find out how Sentry can help you.

We strive to be the best.

From the administration team to our crews in the field, we pride ourselves in safety and quality of service.

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Join Our Team

Sentry is looking for people who are, hardworking, optimistic, and passionate about what they do. 

Sentry is a family-friendly workplace that respects a person’s desire to work hard and still have enough time off to be home with the people they care about.

Want to join a team of leaders in North Dakota?