Clients turn to Mueller Associates with their most challenging facility requirements, including environments that put MEP systems to the test. We specialize in cultural, educational, corporate, and government spaces that require advanced performance from HVAC, plumbing, power, fire protection, and lighting systems. Our portfolio reflects our promise: we engineer great spaces…and great experiences.



Mueller projects are making news. Read about our current and recent work.


For more than 50 years, we’ve set the standard of excellence in MEP and fire protection engineering.


Our cutting-edge expertise includes comprehensive services in MEP and fire protection engineering


Learn more about our executive leadership and management team


Mueller’s awards include ENR’s national “Best of the Best” and the USGBC President’s Award for Leadership and Vision


Join one of the nation’s top engineering firms for cultural, educational, corporate, and R&D environments

Professional Commitment

We are actively involved in a wide range of professional organizations. Learn more about our industry leadership.

Commitment to Community

We’re focused on community service. Join in the fun!