Commercial Alpha Mechanical service A simple enough assignment. As part of its ongoing work for a local real estate management company, Commercial  Alpha Mechanical Service replaced two 40-ton units from the top of a medical building on Gray Street in downtown Louisville. Given that the location was in a high-traffic area in the middle of the city’s medical complex, the work was scheduled on a Saturday. The units were atop an 11-story building, requiring a crane and precision engineering to replace…