As one post pointed out that there is a difference between new home builders and remodeling / restoration contractors. I have done both, but mainly focused on remodeling and restoration types of work.
With that being said, a large number of projects involved working with the owner living in the home during the project, so cleaning was a top priority for my part, even before I started using Festool and other dust collection tooling on site.
I built my reputation on the ability to make sure that the customer could remain in their home comfortable throughout the job, and this lead to my being able to make a good living on word of mouth alone.