Green Air Inc. Air Conditioning & Heating is here to help with your commercial HVAC unit replacement, service or sales in Los Angeles County, Ventura County, and Santa Barbara County. Without any disruption to your business, we will replace your unit fast and easy with very minimal downtime. Some systems can be replaced the next day! We install and service all the major brands including Lennox, Trane, Carrier, and York. We also provide full-service maintenance, with dedicated staff to ensure ongoing system maintenance and quick repair.