Energy Technologies put in a small AC and heating unit for me. They installed it and then I also had them do a little bit of checking and tweaking after they put it in. There was an issue that turned out not to be with them, it was something else. But they were very responsive. The price was good, not great or crumby, but the price wasn't really the issue for us, they did what we needed and that's what's important. The were very responsive and very polite.