Green Air Engineering, established in 1995, is a family-owned HVAC contractor serving Orange County, CA. They specialize in residential AC repair, air conditioning installation, heater repair, and heating replacement, offering industry-leading warranties. All employees are background-checked and verified. Green Air Engineering provides comprehensive HVAC services, considering factors like home construction, insulation, and ductwork to recommend optimal systems. They are factory-trained and certified for major brands, including Carrier, York, Trane, and Lennox.