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General Info
O.C. McDonald Company has been the Bay Areas most respected Mechanical Contractor for over a century, specializing in HVAC, plumbing, process piping, building services, direct digital control systems and building automation systems.We service a wide range of industries including LEED Certified projects, data centers, high tech clean room construction, process tool installation/fit up, heavy industrial piping, commercial, institutional, healthcare and hospitality. In addition, O.C. McDonald leverages its experience to offer the right tools to building owners and managers who want to achieve efficient building management. Mechanical Contractor, Piping Contractor, Plumbing Contractor, HVAC Contractor, Heating Contractor, Leed Certified, Sheet Metal Fabrication, Service and Repair, Maintenance
BBB Rating
BBB Rating and Accreditation information may be delayed up to a week.

Regular Hours

Sat - SunClosed

Extra Phones

TollFree: (800) 606-2182

  • Furnace Repair
  • Water Heaters
Bryant, Carrier, Payne, Trane
Payment method
check, discover, financing available, visa, mastercard
On San Carlos St. between Race St. and Lincoln Ave.
Central San Jose
USGBC San Jose Chamber of Commerce Via Rehabilitation Services
Social Links
Building Contractors-Commercial & Industrial, Furnaces-Heating, Ventilating Equipment, Backflow Prevention Devices & Services, Plumbers, Sheet Metal Work, Air Conditioning Contractors & Systems, Heating Contractors & Specialties, Heating Equipment & Systems, Furnace Repair & Cleaning, Heating Equipment & Systems-Repairing, Air Conditioning Service & Repair, Water Heaters
Other Information

Services: Furnace Repair

Emergency Service: Yes

Free Estimates: Yes


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In home plumbing

Excellent service! Showed up on time, were professional, diagnosed the problem quickly and got me back up and running. Will call again!