Retouching is $100 per hour of work, which works out to $25 per 15 min of work. If you bring in the piece or file you need retouched, or email us the file or a picture of the image, we can give you an estimate on the cost of retouching. Some things are irreparable and we would be able to give you a better idea of what can be done after seeing the state of the original.
Turnaround will depend on how much retouching is required and the current workload but would be a minimum of 3-4 days.