How about having a really low base price, something like $150. Tell them right off the bat.

The conversation might go something like:
B: $150? Thats great! When can you do it.
I: Well, that is for the new guy, he can come any time. He has only done a few inspections and needs the practice. We can send him over tomorrow and he can do it in his lunch hour.
B: Is there anybody there that has more experience?
I: Yes, but that costs more.....