Sentry offers General Contracting, Construction Management, Design-Build, and EPC delivery models. What sets us apart is our ability to self-perform critical scopes, giving owners greater schedule control and predictable results. Divisions include Electrical, Mechanical (Plumbing/HVAC), Controls & Automation (UL-listed OEM panels), Structural Steel, Manufacturing, Crane Service, and South Dakota Service.
Full service engineering, procurement, and construction
Licensed electricians, electrical engineers, and project managers
Plumbing and mechanical contractors and plumbing service
Structural steel building design and construction
Our commercial construction work often happens in public or occupied spaces, where safety and cleanliness are non-negotiable. Sentry enforces site separation, phased construction, and off-hours scheduling when needed. QA/QC measures verify MEP systems, finishes, and life safety equipment before turnover, ensuring a smooth opening day.
We manage and self-perform commercial construction projects across South Dakota and the Midwest.
