O.C. McDonald

1150 W San Carlos St, San Jose, California, 95126

·24/7 Available

RTUAHUChilled Water/ChillerBoilerSplit SystemVRF/VRV System

Commercial Capabilities

24/7 AvailabilityYes — always available

About

Operating continuously since 1906, O.C. McDonald Company brings over a century of mechanical contracting expertise to San Jose's commercial facilities. This full-service contractor specializes in comprehensive HVAC, plumbing, process piping, and building automation systems for the Silicon Valley market. Their single-source approach manages all project aspects from design through installation and ongoing service, reducing complications and controlling costs for facility managers. O.C. McDonald's commercial capabilities span rooftop units, air handling systems, chilled water plants, boiler installations, and VRF systems across office buildings, industrial facilities, retail spaces, healthcare centers, educational institutions, and government properties. The company's building automation and direct digital control expertise ensures optimal system performance and energy efficiency. With 24-hour emergency service backed by live operators, facility managers can rely on immediate response when critical systems fail. Their experienced technicians handle both new construction and retrofit projects, adapting legacy systems to modern efficiency standards. The contractor's deep Silicon Valley roots and century-long track record demonstrate stability and local market knowledge essential for managing complex commercial mechanical systems in San Jose's diverse business environment.