Well, I can only speak for myself (by the way, no reason to get snappy immediately ), and for us it has always worked without any problems so far. Once in my workshop. I called him, told him what I wanted, he came by, created a written estimate and I commissioned it. One week later (as agreed) a technician showed up here with his vehicle and installed the stuff and I paid for it. Same about a year ago with the new house water filter and expansion tank. Call, estimate, order, execution, payment. At least here with us it has been no problem so far. What could he change about it? As I said, just hire a local established plumber (better? ) with the big basin and shower instead of the above-mentioned provider, if that one charges outrageous prices. And since suddenly there is such a fuss about the word "Fritze" here, let me add that at least in this area it definitely does not have a derogatory tone, but is simply a colloquial job title and completely neutral. Gas-water-sh... would have a somewhat more negative connotation