O'Brien Mechanical, Inc.

1515 Galvez Avenue, San Francisco, California, 94124

RTUAHUChilled Water/ChillerBoilerSplit SystemVRF/VRV System

About

O'Brien Mechanical, Inc. brings decades of commercial HVAC expertise to San Francisco's demanding building environment. Operating in one of California's most complex mechanical markets, they specialize in maintaining critical climate control systems across the city's diverse commercial portfolio. Their technicians handle everything from rooftop units cooling downtown office towers to sophisticated chilled water systems serving major healthcare facilities. The company's experience extends to air handling units in retail complexes, boiler systems in older industrial buildings, and variable refrigerant flow systems in modern mixed-use developments. San Francisco's unique climate challenges—from fog-induced humidity variations to seismic considerations—require contractors who understand both traditional and cutting-edge HVAC technologies. O'Brien Mechanical serves facility managers across multiple sectors, including educational institutions, government buildings, and healthcare facilities where system reliability is non-negotiable. Their approach focuses on maintaining optimal indoor air quality and energy efficiency standards that San Francisco's stringent environmental regulations demand. Whether managing split systems in smaller retail spaces or complex central plant operations in large office buildings, they deliver the technical expertise facility managers need to keep their properties operating smoothly while controlling operational costs in one of the nation's most expensive commercial real estate markets.