Most of this is really fairly simple stuff but it gets complicated by the fact that the motors are usually out in the weather, not in a mechanical room.
Your typical call is ants in the "bell" gumming up the start contacts.
I suppose a lot depends on what your typical customer is irrigating. I am thinking about golf courses and residential.
Around here your competition will be an (electrically) unlicensed guy who does this as part of his landscaping business. The AHJ seems to have a fairly blind eye about this and the labor people seem happy if the guy has any kind of license/insurance at all. (mostly that they have enough green cards to go around on any given day) They certainly exceed the scope of what most of us would call landscaping.
