MacDonald-Miller Facility Solutions: Portland's Trusted Mechanical Contractor

MacDonald-Miller Facility Solutions is the full-service, design-build mechanical contractor Portland, OR homeowners and businesses rely on. They handle heating, cooling, electrical, and plumbing needs for residential and commercial clients across the region.

Available for scheduled projects and with options for urgent needs, their team of skilled technicians and project managers brings extensive local experience to every job. They work on everything from historic Portland homes to modern commercial buildings.

Key Services for Portland Homes & Businesses

MacDonald-Miller provides a connected approach to your building's systems. Common services include:

  • Heating & Air Conditioning/HVAC: Installation, repair, and maintenance for Portland's wet winters and dry summers.
  • Electrical: System upgrades, troubleshooting, and electric inspection services for safety and code compliance.
  • Plumbing: Repairs, installations, and plumbing inspection to prevent issues in older Portland-area homes.

This integrated service model means one trusted team can manage multiple interrelated projects, simplifying communication and ensuring quality.

Areas Served with Local Knowledge

MacDonald-Miller Facility Solutions primarily serves Portland, OR and surrounding communities, including Gresham OR and Fairview OR. Their familiarity with the local climate, common building materials, and area-specific codes allows them to provide solutions that work for the long term in our unique environment.

Company History & Growth

Founded as a mechanical contractor focused on the Pacific Northwest, MacDonald-Miller has grown by sticking to a design-build model. This means they manage both the design and construction phases of a project in-house, leading to better coordination, fewer delays, and more control over the final result. Their growth reflects a commitment to this efficient, client-focused approach.

Leadership & Local Ties

The leadership team at MacDonald-Miller brings deep industry experience to Portland, OR. Their involvement in local trade associations and understanding of the regional construction landscape ensures they are up-to-date on best practices and community needs. They are invested in the area's growth and the reliability of its homes and buildings.

Specialties & Highlights

Several features set MacDonald-Miller apart:

  • Design-Build Expertise: Single-source responsibility from concept to completion.
  • Full-Service Scope: A complete mechanical contractor offering HVAC, electrical, and plumbing.
  • Local Project Understanding: Knowledge of Portland-area architecture, weather, and utility demands.
  • Skilled Workforce: Employing trained, experienced technicians and project managers.

Why Portland Chooses MacDonald-Miller Facility Solutions

For decades, residents and business owners in Portland, OR have turned to MacDonald-Miller for mechanical systems work. The choice comes down to a straightforward combination: a long-standing local presence, a practical full-service offering, and a reputation for executing projects reliably. They are known for solving complex problems in homes and commercial spaces alike, making them a foundational part of the region's contractor network.

Contact Information

MacDonald-Miller Facility Solutions

: 12911 NE Airport Way, Portland, OR 97230

: (971) 244-0901

: https://macmiller.com

Business Services

  • Electric inspection
  • Plumbing inspection

Business Location & Hours



Mon:7:30 AM - 5:00 PM
Tue:7:30 AM - 5:00 PM
Wed:7:30 AM - 5:00 PM
Thu:7:30 AM - 5:00 PM
Fri:7:30 AM - 5:00 PM
Sat:Closed
Sun:Closed




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