You need to speak with the builders and see how they want the work done. The ones in my area have no desire to have a rough and then final clean done. They just want a one time complete clean at the end of the construction process. You need to hit the street and speak with the builders.
I would bet that you probably will not find many builders that want a rough and final. They may want you to do a touchup just before closing but that can be a by the hour charge if necessary. Don't forget to go with a three hour min charge for coming back out to do the touchup.
If you have not done construction cleaning yet, windows will be your biggest learning curve. It takes about 40 to 50% of the labor for a job to do the windows and frames.
john