Although this office installation tutorial didn’t cover it, the installer will need to cut the baseboard that was removed at the beginning of the installation. If the baseboard was removed correctly, and none of the wall paint was removed, then the baseboard can be cut to side and secured to the wall with a Brad Nailer. Then caulk the top of the baseboard and dap any Brad Nail heads to make a clean finished look.
Make sure all the gables, shelves, drawer boxes (inside and out), drawer faces, doors, and countertops, have been wiped down and cleaned along with the floor and work area. First impressions go a long way, so you want to make sure everything is clean, and in its place, before you leave the job site.