All major construction like elevator shafts is always inspected [1]. Since they are working on-site, the quality, speed, and scope of their (subcontractor) work is apparent and visible on a real-time basis. You have to know what you're doing - if you do not - worst case, you get someone injured/killed, best case, they fire you. Like the cliche goes - a contractor with shiny new tools isn't a contractor you hire. As for licensing, there are ways around licensing & bonding...
The point is they weren't just bluffing - they had supreme confidence they could do it. And did it. As someone who is scared to install a new faucet, who does that?
All major construction like elevator shafts is always inspected [1]. Since they are working on-site, the quality, speed, and scope of their (subcontractor) work is apparent and visible on a real-time basis. You have to know what you're doing - if you do not - worst case, you get someone injured/killed, best case, they fire you. Like the cliche goes - a contractor with shiny new tools isn't a contractor you hire. As for licensing, there are ways around licensing & bonding...
The point is they weren't just bluffing - they had supreme confidence they could do it. And did it. As someone who is scared to install a new faucet, who does that?
[1] They did the shaft in Chicago: http://www.sfm.illinois.gov/commercial/elevators/faq.aspx