John Wiemer has retired after more than a decade representing Tubelite and 40 years in the glass, glazing and aluminum framing industry. He has transferred much of his knowledge to Mark Cisco, who has been named as the client development manager serving Arkansas. For the last seven years, Cisco has represented the EFCO brand. He now adds Tubelite brand product offerings. Both are brands of Apogee Enterprises.
For 14 years, Wiemer represented Tubelite and assisted glazing contractors and architectural teams with their product selection and specification of Tubelite high-quality, aluminum-framed architectural products. As he approached retirement, he was dedicated exclusively to Arkansas as the owner of Glazing Systems Specialties, LLC.
“John is one of the most respected people in our industry,” said Jeff Fochs, South regional sales manager. “During his career, John has always gone out of his way to help others and educate folks about proper glazing best practices, including myself. I thank John for his years of service and wish him the best of luck in the next chapter of his life.”
Before joining Tubelite as a client development manager, Wiemer worked as a manager with Valley Building Specialties in Hot Springs, Arkansas, where he supervised estimating and project management teams. Prior to this, he was an architectural sales representative with Kawneer for the first three decades of his career.

Based in Missouri, Cisco joined EFCO in 2016 as a project manager then transferred to inside sales before becoming a regional architectural sales manager. Reporting to Fochs in his new role as client development manager, Cisco’s territory includes Arkansas, Oklahoma and southwest Missouri.

In addition to his consultative and educational approach to helping glazing contractors and architectural teams, Cisco also works as an adjunct professor for Drury University and an instructor for Crowder College. He teaches leadership studies and project management courses. Cisco graduated from Drury University with a bachelor’s degree in business, and earned a master’s degree in project management from Colorado State University Global.
Cisco’s career includes a range of roles including serving in the U.S. Army as a supply specialist and logistics manager, and as a General Motors-certified service and parts consultant.