We just did this in a gallery space last month. Clean evening wins were door gasketing with a drop seal (about an hour per door), pre-measured window inserts (install night is quick if you measured earlier), and hanging fabric panels on Z-clips. Crew set plastic containment, used HEPA vacs, and low-odor adhesive so the space didn’t smell in the morning. Sound masking commissioning also worked after close. I ran our plan by
newyorksoundproofing.com—they helped us sort “quiet vs loud” tasks and phase drilling-heavy items for a weekend. Next morning, lights on, open sign out, zero drama.