We installed the entrance door professionally. The level has been used many times. We gave instructions on how to use the door locks. The installers are polite. They cleaned up after themselves.
I advise everyone!
We were satisfied. The installers arrived on time. The old balcony was quickly demolished. A new one was also quickly installed. I thought they would work for 2 days, but it turned out they did everything in one day. There are no complaints.