I was asked to bid on snow removal at two commercial properties I already service. They want a time and materials bid which I never did. So I just give them a per hour figure for Truck Plowing, Lot Salting, Shovel Labor, Walk De-icer? Anything I'm missing? I should charge for every hundred pounds of salt/sand? And again for the time it takes to apply, right? They do not want it removed off site. Any one want to chime in with some rates and bid tips. I included a picture of one of the complexes. Also should I have second rate for more then one truck or double the rate?