Healthcare DNA

It's in our DNA.

At MacDonald-Miller, healthy environments are our passion. Leading with our culture and values, our Healthcare Division designs, builds, implements and maintains critical mechanical, medical gas and control systems essential to the environment of care for patients and staff. We’re by your side every step of the way, delivering innovative designs, new technology, sustainable solutions and energy efficient outcomes. Our recent projects span neonatal infant care units, ASC’s, USP-797-800 pharmacies, sterile processing departments to creative mechanical infrastructure retrofits. Delivering innovative solutions for healthcare isn’t just what we do, it’s in our blood.


We understand the unique challenges that health care projects often face. At MacDonald-Miller patients come first and quality is never sacrificed. We’re with our clients every step of the way providing new technology, energy-efficient solutions and reducing waste.

Vacuum Plumbing works better with MacMiller.

MacDonald-Miller continues to be a visionary partner with our friends at The Polyclinic. See how we're helping to change the healthcare industry with vacuum waste plumbing. This is the first application of this plumbing system in a medical setting with demountable walls; creating flexibility for the tenant and reducing safety risks for patients, both of which, were goals of our client.

Fan Array Retrofits

This critical fan retrofit project encompassed two preexisting fans serving multiple surgery suites for a local hospital. Each fan provided approximately 50,000 CFM of air to the supported areas (the air equivalent required to condition 70+ residential homes).

Our Projects


Polyclinic & Swedish Health Services

The Polyclinic and Swedish Health Services recently joined forces to construct a state-of-the-art ambulatory surgery center (ASC) in the heart of the First Hill district. Complete with ten operating rooms and two eye procedure rooms, this new facility is the largest ASC in the United States. Full design and installation of a complete HVAC, plumbing, medical…

St Anthonys Hospital

Saint Anthony’s Hospital

The Acute Care Expansion for CHI Franciscan Health at Saint Anthony’s Hospital project consists of the build-out of 32 patient rooms – MacDonald-Miller performing all HVAC, plumbing, pipe fitting, and medical gas scope. From the start, we displayed strong leadership by taking on a “lean and mean” MEP detailing effort, which resulted in our ability…

Swedish Perkins

Swedish First Hill

This redevelopment of two blocks of the existing campus will boast more than 1,300,000 SF of space.  Northwest Tower, a new 17-story procedural center, will house emergency services, a cafeteria, 37 operating suites, sterile processing, critical care, and support services.  Block 95 will be a new 5-story medical office building housing a central emergency power…


The Polyclinic – Madison Center

The 7th & Madison Polyclinic expansion is a fast track medical office building project located in downtown Seattle. A 6 month schedule from construction start to move‐in day is challenging, but our team is capable. It was made possible by utilizing state‐of‐the‐art 3‐D design software to coordinate MEP systems within tight constraints and to accommodate…

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We make buildings work better.