The cost of painting an industrial unit can vary depending on a number of factors, including the size of the unit, the type of paint and coating materials used, the complexity of the job, and the location of the unit. In general, the cost of industrial painting can range from a few thousand dollars for a small unit to tens of thousands of dollars for a large unit. It is best to consult with a professional industrial painting contractor to get a more accurate estimate of the cost of painting an industrial unit.