Seppanen Contracting has completed countless projects in the South Dakota, North Dakota, and Minnesota regions. From dairy barns / facilities to farm shops, hay sheds, and more, Seppanen's can tackle any size commercial or agriculture project.

Quality - Service - Timeliness
Who We Are
Since 1990, Seppanen Contracting has been a name you can trust. Agriculture & commercial- Butler steel buildings, laser screeding, and concrete construction. We do it all. From dirt work to finished product, We are your one-stop-shop for general contracting. We are family-owned and our work is backed by a 5 year workmanship guarantee.
Our Mission
To provide customer satisfaction, In a timely and precise manner.

We love helping our customers with their projects. From Steel Buildings to new shops, we love it all. See how we can help you!
View Our Latest Projects
View some of our past projects. We can specialize in commercial and agriculture projects, including dairy facilities, farm shops, hay sheds, concrete flatwork, steel buildings, rural buildings, and much more. See what we can do for you!