Depends on what it is. If you are undercutting your own trade then hell yes they have a huge problem with that. Each area is different, and each trade is too. Carpenters often rat on just about anything they can on the side, one of the many reasons they are treated like they are. Around here residential work is mainly non union, so my tree service means nothing. Now if i buy a crane and start running that all over town, I'll likely be followed to a job and asked to join the operators, which I'll hopefully be ready for. Then i can get way more commercial work, crane hire, and have qualified operators at my disposal. My end game is to have a signatory company with enough iron to make it almost self sufficient. Then maybe I'll have enough together to start a piping outfit as well.