Core Markets


Over the past decade, our firm’s expertise in the Healthcare and Education fields has expanded into government facilities. Diekema Hamann has been awarded multiple IDIQ contracts over the past 10 years including renovation work, healthcare projects, public spaces, and workplace design for the U.S. Government.

Many of these existing facilities house complicated infrastructure that needs to be replaced or upgraded, and we are often faced with challenges including limited resources, multiple stakeholders, and ever-changing needs. We work closely with our governmental clients and help them make informed decisions, stay within controlled costs, and keep complex projects on track.

Large or small, our government clients continue to appreciate our quality work and high level of client service, as evidenced by the positive feedback consistently reported through the Contract Performance Assessment Reporting System (CPARS).

Diekema Hamann | Architecture & Engineering


  • Office Renovations
  • Roof Replacements
  • Parking Structure Improvements
  • Medical Office Renovations
  • Surgery Unit Renovations
  • New Construction
  • Air Handling Unit Replacements
  • Lighting Retrofits
  • Boiler System Replacements
  • Nurse Call System Upgrades
  • Electrical Testing and Correction
  • ARC Flash Assessments
  • Water Management Program Assessments - Legionellosis Risk Management

Select Government Clients

DHAE has serviced current and past IDIQ contracts with both the Veterans Administration (VA) and General Services Administration (GSA) in the Great Lakes Region. Due to the sensitive nature of these projects, we are unable to showcase the majority of our Government work online. For more specific information, please contact Diekema Hamann directly via email at


Featured Projects

View all Projects →

Would you like to
discuss a project?

We’re always looking for exciting new partners, projects, and collaborations, so please don’t hesitate to contact us.