AR&B Mechanical, Inc.

AR&B Mechanical, Inc. is a San Francisco-based mechanical contractor serving the Bay Area for more than 100 years. The company provides HVAC, plumbing, and fire protection services for new construction, tenant improvements, and long-term maintenance of commercial facilities. AR&B operates its own fabrication shop and in-house design capabilities in San Francisco, handling complex mechanical systems tailored to the Bay Area's demanding conditions, including seismic requirements, coastal corrosion, and strict municipal codes. The company partners with owners, architects, engineers, and general contractors throughout project development to ensure systems are practical to build and efficient to operate. AR&B maintains a workforce of over 170 skilled employees and supports critical building systems with routine maintenance and compliance services.