Jeff Diemer

General Superintendent

Jeff brings a hands-on leadership style and deep construction experience to every project he supports. He is highly involved from the early planning stages through completion, helping guide coordination, decision-making, and execution along the way. Known for his strong communication skills and ability to manage complex, occupied construction environments, Jeff is committed to delivering high-quality work while keeping projects on schedule. His consistent on-site presence and collaborative approach help ensure a smooth process and successful outcomes for clients and project teams alike.

When did you realize this was the industry for you?  

I realized at a  fairly young age that the construction industry was for me.  I started framing in the residential sector at 14 years old and haven’t looked back.  It’s been a winding road but a very rewarding path. I value the many relationships that have been forged and maintained along the way.

What can you say about our employees over the years?  

O-A-K employees are a special group.  We are committed, take pride in our work, willingly help each other, and do the right thing.

What else should we know about you?

I’m a proud University of Michigan alum – Go Blue!

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Jeff's Stories

Forest Hills Central Middle School Construction Tour

Did you know? Forest Hills Central Middle School is in phase two of a four phase renovation! Check it out as Jon Haga, FHPS Central Middle School Principal and Jeff Diemer, O‑A‑K Project Superintendent take a tour around the site.

March 1, 2023
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Forest Hills Project Next Construction Challenges

Previously an exterior courtyard, this new design space at Forest Hills Northern needed to be reworked from top to bottom! Learn more about the transformation with Jeff Diemer, O‑A‑K Project Superintendent.

January 28, 2022
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Progress Video: Forest Hills Project Next

Bond Summary:
This $140 million bond program for Forest Hills Public Schools was passed by local voters in 2018. The program was developed to INVEST in the district’s infrastructure by upgrading aging systems to save operational costs, SECURE their schools by upgrading safety measures, and INSPIRE students by providing modern learning environments.

Project Next:
In this video, Jeff Diemer, Project Superintendent, gives us a behind-the-scenes tour of the ongoing Project Next construction site at Forest Hills Northern High School. Renovations to the east wing of the high school were completed over the spring/summer of 2020. Current work is centralized within the west wing, and is being completed in sub-phases to minimize disruption to ongoing school operations.

Features include enclosing an exterior courtyard to create a collaborative, shared commons space, while adjacent renovations and reconfigurations to classrooms are being built with several features that promote flexible, hands-on learning.

December 3, 2020
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