Homeowners BEWARE! This is a shady business. I s...

Homeowners BEWARE! This is a shady business. I selected this company to replace my 20 year old HVAC when I moved into my house a few years ago based on 4.5 stars average review on Google. Well since then, each season I taken advantage of their seasonal check up. This is the ONLY time I ever have trouble with my system. Sure enough, about a week after each visit, a problem crops up with my system. So then a different tech will come out to fix the new problem, and I end up paying for parts, labor, etc. I guess this is A#1 Air's way of drumming up business. This year, I reluctantly did the check up (because of past experiences). The window for the appointment was 8:00 to 12:00, the technician, Justin showed up around 1:30 PM, no calls, or anything. Then Justin complained that our attic was 146 degrees!! Well, guess what?.... you work on HVAC, in Texas, Justin! And, it wasn't nearly as hot at 8:00 AM when the appointment was scheduled. Well, Justin pointed out several "issues" with the installation of our HVAC and tried to upsell us on products, a "ceiling saver" and special sealant, and I asked why these issues were never discovered in the past 3 years of inspections. He had no answer. He refused to work on the other system, that A#1 Air installed, because "the attic was too hot, and it was too difficult to get to". I politely told Justin to leave on not come back. I never heard any follow-up from the company.
Update 20 June 2019:
Sure, enough.... two days after Justin was out to 'check' my system it quit working... I did get a response on Google from the company's complaint department??????? If I were the owner I would have called or been out to fix the problem.