Established in 1971, Columbia Mechanical Contractors specializes in heating, ventilation and air conditioning services. Its areas of specialization include mechanical contracting, maintenance, plumbing and piping. It offers fixture and water heater replacement and sprinkler line relocation services. Columbia Mechanical Contractors provides backflow prevention, installation, equipment inspection, testing and renovation services. The company offers services to offices, hotels, hospitals, churches, retail outlets and restaurants. Some of its clients include Gordon & Rees, Ghiradelli Square, Harsch Investment and Hornblower Yachts. Columbia Mechanical Contractors offers 24-hour emergency services for commercial and residential clients. The company is located in San Francisco..