Should a PM walk the property before dispatching a plumber?

[Kaven L.]

We pay a PM to manage a SFH, and this past week we received a $1k bill from a plumber for fixing the washing machine drain pan. I'm a little frustrated because from the plumbing bill I don't understand what exactly was repaired and why. I believe the PM lives an hour and a half away (purchased PM business that we were previously using) and didn't visit the home before sending out the plumber because they didn't seem to know any more details about the invoice than what was written in the description. Is it standard practice for a PM to visit the home and see what the issue is before sending out a repair person? I'd be more receptive to the bill if I knew exactly what was wrong and what services were done.