Plumbing Company San Jose CA | Call O.C. McDonald

1150 W San Carlos St, San Jose, CA 95126

(408) 295-2182

http://www.ocmcdonald.com

Common Questions

Can O.C. McDonald help with sewer line problems from tree roots in San Jose?

Yes, absolutely. San Jose's mature trees often lead to root intrusion in sewer lines, a common local issue we handle. Our plumbing repair and sewer repair services include advanced diagnostics to locate the problem and effective solutions to clear the blockage and repair the line, helping to prevent future backups and protect your property.

What sets your HVAC service apart for a local business or homeowner?

Our century of experience in Silicon Valley means we understand the specific climate and building needs of the area. For HVAC installation, repair, and maintenance, we don't just fix the immediate issue. We consider your system's long-term efficiency and can integrate with building automation systems for better control and energy savings, a process refined through our work on complex commercial projects.

Do you handle both emergency repairs and planned installations?

We do. From urgent needs like a broken water heater or gas line repair to planned projects like a full plumbing installation or HVAC replacement, our team is equipped for both. Our operational model, which includes in-house fabrication, allows us to be responsive for emergencies while also meticulously planning larger installations to stay on schedule and within budget.

Main Services

  • HVAC system maintenance
  • Gas line repair
  • Shower repair
  • Faucet installation
  • Water heater installation

Company Background

Founded in 1906, O.C. McDonald Company is a family-owned and operated mechanical contractor that has served San Jose and the greater Bay Area for over a century. Currently led by Jim McDonald, the founder's great-grandson, we combine the reliability of our long-standing local presence with modern technology. We are known for handling complex plumbing, HVAC, and process piping installations, from commercial and industrial projects to LEED-certified builds. Our own fabrication facilities and use of 3D modeling ensure projects are completed efficiently and to a high standard. We are committed to providing consistent quality, excellent customer service, and solutions that respect both your timeline and budget.

Business Location & Hours



Mon:Open 24 hours
Tue:Open 24 hours
Wed:Open 24 hours
Thu:Open 24 hours
Fri:Open 24 hours
Sat:Open 24 hours
Sun:Open 24 hours


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