
Sit back, relax, we’re in controls.
MacDonald-Miller is a full-service HVAC Building Controls Contractor. As a factory certified provider of global industry leading building controls solutions, we can be your one-stop shop for all your HVAC building control systems, lighting, small commercial, and balancing & commissioning solutions. We implement open-sourced web-based systems, allowing for remote monitoring and control of a building from a system-wide holistic standpoint. Now you can rest easy knowing you have a single system to make your buildings work better.
What We Do

All Building Types
- Critical Environments / Life Sciences
- Commercial Office / Mixed-Use
- K-12 & Higher Education
- Federal, State and Local Municipalities
- Hospitality & Entertainment
- Industrial
- Data Centers
- Healthcare

Mechanical Construction
Expertise
- Plan & Spec
- Preconstruction Services
- Design/Build – New Construction and Tenant Improvements
- Turnkey Projects including In-house Electrical
- HVAC System Retrofit and Modernization

Full Service Automated
Controls & Maintenance
- Extended Warranty for all customers with a Service Agreement
- 24/7 Emergency Services
- Factory Certified and Trained Technicians
- Software Upgrades
We give you options.
We take great pride in offering customers the ultimate freedom of choice in products and service providers. We use off-the-shelf, IT-centric, building automation solutions where integration is seamless and cost effective.
Building Automation Partners



Systems Integration & Open Protocols



Lighting Control Partners


Small Buildings & Advanced Rooftop Controls Solutions




Hear what Our Customers Say…
“MacDonald-Miller implemented a software platform that allows us to create energy baseline metrics for each of our buildings. This tool gives us a way to measure the energy performance for our entire portfolio in real-time. Energy monitoring is better for building performance, and it’s better for our bottom line. We see cost reduction through energy savings. It saves KCLS money by reducing energy consumption, improving performance, and saving time and resources.” – Greg Smith, King County Library System
How can we help?

Union Stables

Montgomery Park

Washington Athletic Club

AGC Electronics America

Plymouth Housing Group

Hyatt Regency

Bellevue City Hall

Avalara Hawk Tower

Lake Road Medical

Lincoln Square – Expansion Phase 2

FLIR

Redmond Campus Central Utility Plant

Highline College

Lakeside Condos York-Shipley Boiler

Key Center

Leatherman

Seattle Aquarium

Seattle Central College

Bellefield Office Park

Columbia Sportswear