Founded in 1906
Established in San Jose and serving the region since 1906.
O.C. McDonald Co.
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About O.C. McDonald Co.
Founded in San Jose in 1906, O.C. McDonald provides plumbing, process piping, and HVAC services across Silicon Valley and the Bay Area. The company works on commercial new construction and retrofit projects, offering mechanical design, installation, and service through a single-source approach. Its commercial capabilities include building services, direct digital control systems, and building automation systems. Residential work includes heating and cooling installations, from basic to custom projects. Emergency service is available 24 hours a day through a live operator. The company also handles process piping and mechanical contracting for commercial clients. Its history includes installing San Jose's first air conditioning system. O.C. McDonald is based in San Jose.
Disclosure: Profile information has been compiled from publicly available sources and has not yet been verified by the business.
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Services & specialities
Highlights
24-hour service
Emergency service is available through a live operator.
Commercial projects
Mechanical design, installation, and service for new builds and retrof
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