We asked about it and he answered.
Electric company x or y
Sanitary company Z. Can't Hans do it? No, I can't do it with him. On Sunday, asked Hans, would you, no not with him.
You have to accept that.
Since more than half of the companies were known to us, I didn't take care of the rest.
Personally, we got along well with our two contacts. The general contractor suited us.
The expert was brought in by the general contractor. Simply because his quality standards are met and he doesn’t have to keep an eye on the companies. We would have taken one anyway because friendly craftsmen said, better take one of those.
So even an expert has advantages for both sides.