Your Building Partner.

We’re here to make your life a lot less hectic, a lot more productive, and deliver true peace of mind. We perform regular inspections and maintenance of your building systems to ensure a greater level of operational excellence. We test, align, calibrate, and record performance to ensure your building’s equipment quality and reduce downtime or emergencies. When it comes to expert HVAC service & maintenance, we have a dedicated team that is proud to be a part of the Oregon landscape.

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3 Ways to make your building better.

Smart Building Maintenance

We turn your existing system into a smart system so you can focus on more important things (like how to spend your new found operational savings).

Automate Your System

Stay in control of your operations with unified building automation. Operate your facilities at peak efficiency and maximum comfort by integrating all mechanical, electrical, safety, lighting, video, and card access into an operations center.

Request an Audit

The more you know, the more power you have to make informed decisions. Find out how a preliminary audit or investment grade audit could show areas for improving equipment functionality and decreasing costs of operation.

Local Projects

WeWork, Tenant Improvement for Historic Portland Building


For this 3-story tenant improvement project in Portland’s historic Power and Light Building, MacDonald-Miller had to respond quickly to propose, design and immediately start work to accommodate WeWorks’ tight deadline. Our HVAC scope of work includes a 4-pipe heating hot water and chilled waterfan coil units. We will implement in-house Honeywell controls, and the design…

Block 216

Standing at 460 ft tall, Block 216 is a milestone 35 floor tower exhibiting 158,000 sf of office space and includes the Pacific Northwest’s first Ritz Carlton with 138 Ritz Carlton branded residences, and 11 floors of five-star hotel space. Amenities span 4 floors and features a Ritz Carlton restaurant on the 20th floor along with a pool and jacuzzi on the 19th floor. It will be Portland’s 4th tallest building.  This is…

Cascade Manor

Cascade Manor is a non-profit retirement community based in Eugene, Oregon. They wanted to take a proactive approach to address employee and resident health concerns as it relates to HVAC, plumbing and overall safety during the pandemic. A variety of work was done including preventative maintenance by replacing small pumps, servicing the chillers, and servicing…

Moxy Hotel

MacDonald-Miller brings HVAC design-build services to downtown Portland. This new hotel tower in the center of downtown Portland includes 12 stories above grade and a single-story basement. It boasts 197 guest rooms and retail space. Graves Hospitality, is the developer with Howard S Wright as the general contractor. The Moxy Hotel is a relatively new brand…

Oregon Energy Auditor

ODOE Energy Auditor

MacDonald-Miller is proud to be an ODOE (Oregon Department of Energy) Auditor on the list of Qualified Contractors that can perform Energy Auditing for Schools in Oregon!

Oregon works better with MacMiller

We want the environment to be a non-issue, something people don’t think of, they just come to work and know they are going to be comfortable. MacDonald-Miller knows the quality level that we need here. I trust them 100%.” – Warren Larson, Facilities Supervisor at Synopsys

What can we help you with?

We make buildings work better.