In the business of contracting, it’s not always the big guys encroaching on your territory. Sometimes it’s a bunch of little guys — moonlighters.
 “We had an unusually large number of unlicensed contractors underbidding us,” said Peter Proferes, owner of PJ Air Conditioning and Refrigeration, Winter Haven, Fla. He is also the apprenticeship coordinator for the Polk County School Board. “Then when we go out and bid, customers would look at us like, ‘You’re ripping us off!’”