Integrated Expertise From Blueprint to Build

When a project requires complex mechanical solutions, MacDonald-Miller serves as your single source for integrated mechanical services.

Our extensive in-house fabrication shop serves as the cornerstone of our operations, where expert tradespeople across sheet metal, pipe fitting, plumbing, and more fabricate critical systems elements.

Our engineers collaborate directly with our skilled craftsmen from the earliest stages, ensuring a seamless, integrated design-build process. This proactive approach ensures constructible designs, minimizes rework, reduces change orders, and drives parallel construction without disruption, providing you with peace of mind.

Enhanced Safety and Quality

By prefabricating systems in our controlled shop, we drastically reduce on-site safety risks and ensure superior quality. This allows us to deliver a more precise and consistent product than traditional field installations. As the only mechanical contractor in WA with VPP status, our exceptional EMR (Experience Modification Rate) reflects our unwavering commitment to safety and quality.

Navigate Project Complexity

We specialize in prefabricating complex multi-trade racks and modular systems that combine mechanical, electrical, plumbing, and fire sprinkler components. Our proven leadership in these fully integrated assemblies streamlines on-site installation, taking complex problems and making them easy while setting us apart from the competition.

Accelerated Schedules and Cost Efficiency

Our data-driven shop management and Lean manufacturing processes accelerate project schedules by decoupling complex workflow from the job site while prefabricating assemblies in a controlled environment. This allows us to throttle production flexibly, perfectly aligning fabrication output with the ever-changing job site schedule. Through early coordination, digital modeling (VDC), and precise time-tracking, we ensure efficient production and transparent cost management.

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