MC DONALD O C CO INC
San Jose, California · Serves Greater Silicon Valley and the Bay Area
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From their website
O.C. McDonald Company is a mechanical contractor based in San Jose that provides design, installation, and service for HVAC, plumbing, and building automation systems for commercial and residential customers. The company has operated since 1906 and offers a 24-hour live operator for emergency calls.
- HVAC
- Plumbing
- Process piping
- Building automation systems
- Direct digital control systems
- 24-hour emergency service
- Licensed trades
- General Engineering Contractor (A)
General Building Contractor (B)
Specialty Contractor
HVAC Contractor (C-20)
Plumbing Contractor (C-36)
Sheet Metal Contractor (C-43) - City
- San Jose
- Works on
- Homes and commercial
From their website - In business since
- 1906
From their website - Phone
- Shown once the owner claims
- Website
- www.ocmcdonald.com
Name, city and trade from California public records. The rest comes from the business's own website (checked 2026-10-21) and hasn't been confirmed by the owner. Check this license on the state's license lookup (CSLB) before you sign. Wrong business or details? Tell us and we'll fix or remove it.