MACDONALD-MILLER FACILITY SOLUTIONS LLC

MacDonald-Miller Facility Solutions LLC specializes in the installation, repair, and maintenance of complex HVAC and commercial refrigeration systems for federal facilities. Their technical expertise spans variable air volume (VAV) system upgrades, precision climate control retrofits, and integrated heating, ventilation, and air conditioning maintenance across mission-critical environments. The contractor demonstrates deep proficiency in industrial-grade equipment servicing, including refrigerant management, ductwork optimization, and control system calibration, with direct experience supporting high-security and operational continuity requirements in federal infrastructure. The company has established a consistent presence with the Department of Justice and the Department of Homeland Security, delivering facility systems upgrades and preventive maintenance services that ensure uninterrupted operations in law enforcement and border security facilities. Their work includes direct intervention on aging infrastructure, replacing critical components such as VAV valves and compressors while maintaining compliance with federal environmental and energy efficiency standards. Primary focus is on NAICS 238220, reflecting core competency as a plumbing, heating, and air-conditioning contractor, with supplementary experience in manufacturing and servicing commercial refrigeration equipment (NAICS 333415) and specialized shipbuilding-related facility systems (NAICS 336611). This positions them as a niche provider capable of bridging mechanical systems installation with industrial-scale equipment lifecycle management in federal maritime and secure facility contexts. As a 2K entity based in SeaTac, Washington, MacDonald-Miller Facility Solutions LLC operates as a privately held contractor with no federal certifications disclosed. Their geographic footprint supports West Coast federal operations, with demonstrated ability to respond rapidly to facility-critical mechanical system failures. The company’s market positioning centers on reliability in high-stakes environments where system uptime and regulatory compliance are non-negotiable.