You have to do the inspections at a time which is convenient to the client and to you. Most businesses are open 8 to 5 or so, and you really need to allow an hour for the inspection, although it usually takes me 20 to 30 minutes. Before I retired, I had to only accept ones which were close enough to get to and back on an early or late lunch. As some have noted, some of the inspections turn out to be home businesses, and they were thrilled that I could come before work, after work, or on weekends. You can try to guess in advance from the address (if it is a housing development, it is a home business, if in a commercial office park, a conventional business), but there is always a chance of being wrong. So, having some flexibility in your work schedule is a good thing.
Shopping Southeast Pennsylvania, Delaware above the canal, and South Jersey since 2008