Our Team

Duomax employs a diverse management team. Strong emphasis is put on teamwork and core values such as integrity, loyalty and honesty which is shared amongst the staff. All senior management work together as a single unit.

From preconstruction process to closeout, open communication as well as timely and accurate reporting and documentation are critical tools implemented. Our flexible organizational structure allows leadership, service and professionalism.


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Project Manager and Owner

John Werkman C.E.T.

John has been with Duomax for over 30 years and is the owner of the company.
He is well experienced working with clients, architects and the subcontractors on the projects.

He ensures the clear lines of communication are established and maintained amongst the project team, the subcontractors, and the client concerning all activity during the construction and through completion of the project.

He has extensive experience with projects for both new construction and renovations in the institutional, commercial, and industrial sector.

Project Manager and Estimator

Ed Poort

Ed is a highly skilled and effective project manager who has been employed with Duomax for over 17 years.

He is well experienced working with clients and architects in order to bring the client’s vision for their project to life, having been certified as a general carpenter and working as a site superintendent for many years prior to becoming a project manager. 

He is also our primary estimator, maintaining close symbiotic relationships with local sub trades. The mutual respect they have for one another allows him to guarantee high quality work to the client while closely managing the budget.

Site Superintendents

Stephan Jaeggi

Mike Werkman

Spencer Hare


Certified Carpenters & Apprentices

Jason Werkman

Landon Buikema

Calvin Buikema

Calvin Nobel