Know what problem you want solved
The most useful walkthroughs start with the business problem: dark aisles, failing fixtures, high maintenance, old fluorescent lights, dim offices, exterior visibility, or safety complaints from employees.
Gather the basics if you can
Approximate square footage, fixture count, ceiling height, hours of operation, lift access, and current fixture type are helpful. If you do not have those numbers, a walkthrough can collect them.
Photos and short videos speed things up
Phone photos of fixtures, wide shots of the room, electrical panels, ceiling height, racking, loading areas, and dark spots help start the quote process before an on-site visit.