The Integrated Partner Your Facility Needs

Your industrial facility is more than a building. It’s the engine of your business. When uptime, efficiency, and compliance are critical, you need a partner who understands the stakes and delivers reliable, end-to-end support.

MacDonald-Miller brings engineering, construction, controls, and service together under one roof. From capital planning to 24/7 response, we provide the expertise and accountability to reduce downtime, improve performance, and future-proof your operations.

Unified Mechanical Systems

Design, fabrication, installation, and service all in-house. With single-source accountability, we eliminate vendor conflicts and streamline your entire mechanical strategy.

Smart, Compliant Facilities

Our vendor-neutral smart building controls and energy experts help you cut consumption, secure rebates, and stay ahead of decarbonization and Clean Buildings laws.

Proactive Partnership

With 24/7 emergency service and strategic planning support, we prevent problems before they disrupt operations to keep your facility reliable and productive.