Construction cleanup help

[Zach Basich]

Hey y'all - hoping I'm dropping this in the right place...

My family does new build residential design and construction as well as a fair bit of remodeling. We keep a very clean job site throughout the build, or at least as clean as these things can be. 

We clean and sweep weekly. After the build is complete we have a dedicated cleaning staff go in and they usually cover every detail 2-3 times. However, of course, more dust settles. We don't expect it to be showroom clean, but the client does. We want to make the best possible first impression before handing the keys over, and their money deserves it. 

Any advice on best practices, tips, or tricks? I'm at a loss on whether this requires getting a different crew to do the job or if it simply comes down to managing client expectations better - something we already try to do.

I appreciate any help. And if you know a good cleanup crew in Dallas I'm all ears.