Our Legacy


Diesslin Structures was founded by John Diesslin in 2000, based on his ethics, reliability and integrity.

DSI adds value to all our projects. John’s vision inspires us all and he instills his morals in all of us. From the Heart of the Rockies Regional Medical Center to the new campus of Colorado Mountain College and Salida High School, Diesslin Structures has done it all. DSI is made up of a diverse mix of professionals who thrive on getting the job done right, every time.  All of our employees are treated as family and work as a team to get the job done for you – our customer.  DSI delivers remarkable work through reliability, integrity and financial solidarity.  DSI’s passion, commitment, experience and integrity are a central part of all construction projects we deliver.  We know we are building our children’s and grand-children’s future schools and hospitals, so we build them to last.