Pappas Piping Services

O.C. McDonald, a trusted mechanical contractor in San Jose, has been serving the Greater Silicon Valley since 1906. With a focus on innovative technology and old-fashioned values, they offer comprehensive design, installation, and service for commercial and residential projects, specializing in HVAC, plumbing, process piping, and building automation systems. With over a century of experience, O.C. McDonald is known for their expertise in heating and cooling, providing customized solutions for any job. Their team of experienced technicians is available 24/7 to address emergencies with speed and efficiency.Generated from the website

Marina Mechanical is a provider of heating, ventilation, air conditioning, refrigeration and indoor air quality services. The company offers consulting, design, construction, maintenance, automated temperature controls, process piping and specialized ventilation systems. It serves a variety of industries, such as technology, medical, commercial office, government and education. Marina Mechanical s customers include the City of Vallejo, Evergreen School District, Contra Costa Times, Berkeley Center, Children s Hospital and Asyst Technologies. Marina Mechanical employs more than 80 people and is headquartered in San Leandro, Calif.