Sentry is a self-performing general contractor and design-build construction firm serving commercial, industrial, agricultural, and infrastructure markets across South Dakota and the Midwest. Our work is backed by in-house divisions that include Electrical, Mechanical, Structural Steel, Manufacturing, Controls & Automation, Crane Service, and SD Service.
Whether you’re planning a new facility, expanding your operation, or need service support, we’re here to help from initial concept through long-term maintenance.
Stop by today for a consultation, and see what our commitment to quality is all about!
We know what we’re doing, and we’re dedicated to keeping you happy and your projects running smoothly. From commercial construction to oilfield services, we’re happy to help you in whatever venture you have!
1928 Calvin Dr
Watertown, SD 57201
(605) 753-0880
100 N Krohn Pl Suite #308
Sioux Falls, SD 57103
(605) 910-4730
Whether you’re planning a new facility, expanding your operation, or need service support, Sentry’s team is ready to help. From initial concept through long-term maintenance, we deliver self-performed construction, engineering, and product line solutions across South Dakota and the Midwest. Whether you have plans in hand or just an idea, we’re here to help you figure out the best path forward. Reach out to discuss your project, request an estimate, or connect with one of our division teams.
