My boss sent myself and others to Orland Park on Saturday to handle a commercial Heating plus Air Conditioning repair. The Ford car dealership contacted the Heating plus Air Conditioning repair center because there was no cold air in the cut room or the client lobby, it was a relatively moderate day plus the outdoor rapidly decreasing temperatures were in the 79s… My boss sent myself and others to help with the repair. I met more than one other employees at the job. The commercial AC unit in Orland Park required extra hands, however shortly after I arrived, both of us started checking out all of the components. The air conditioners are located on the rooftop, then jack plus I decided to go on the roof to check on all of the components. I started climbing up the ladder plus I had our tool bag plus our left hand. I was holding on to the ladder with our right hand. I lost our balance when our foot slipped on 1 of the ladder rungs. Before I could catch our balance, I fell off the ladder plus down to the ground. Jack suddenly came down the ladder to see if I was okay. I could not move our left leg. It fell between the bottom more than one ladder rungs plus twisted. I felt particular that it was broken. I told Jack that I needed someone to take myself and others to the emergency room in Orland Park. My boss called on the cell cellphone when both of us were on the way to the emergency room. I tried to explain everything that was happening, but I was in so much pain that I was in plus out of consciousness. My leg was severely fractured plus had to be reset in a surgical procedure.