DLS Mechanical

This is obviously too long to read, so here’s a summary.
Flakey, unprofessional, no interest in customer service, un-​knowledgeable.
DLS Mechanical was the vendor chosen for me by my home warranty company. This was the second claim I made about my AC, and for the first one, they sent another vendor, Coolmasters, who were awesome. Coolmasters called me within a couple hours after I made the claim, promptly scheduled a two hour window in which they would show up, showed up on time, communicated very clearly, and showed knowledge and customer focus. So that was the kind of thing I was expecting.
Surprise! DLS did not call me at all the day of the claim, so I called them the next morning (Saturday) and left a message. I wouldn’t expect a call back from most businesses on a weekend, but if you do AC work in Texas, you had better be available at least by phone all week long. They didn’t call me back until Monday, at which point the owner informed me that he wasn’t sure what time he could come by the next day, and that he would call me at the end of the day and verify. He also mentioned how disappointed he was to have to «drive all over the damn town.» I waited for him to call until six, and finally gave him a call instead. He did not acknowledge that he had forgotten to call me, nor did he give me a solid meeting time.
I wasn’t here when the tech showed up, but I inspected his work when I got home. The problem was water leaking from the coil enclosure in my in-​door unit, which can lead to serious structural damage. The tech had removed a water logged panel of insulation board, and replaced it — –with some tape. That’s right, not new insulation, just some tape spanning a four by twenty inch hole in the coil cover. As for the water coming from the refrigerant line, he had explained to my wife that that was «normal.» I had a pint container under that line that I had to empty every day, that’s not normal.
I called the owner up the give him some feedback about his terrible service, and to provide an opportunity for him to make it right, and he told me that I could just wrap some tape around the insulation on the refrigerant line. I wonder why his tech didn’t do that, if it was such a simple, quick fix?