The government changed the rules on what type of AC units can be installed and the coolant they use. So if you have an older unit and it’s to the point you need parts replaced on it, there are none and you have to get a whole new set up which cost stupid money. What’s even worse is the coolant they changed to is basically the same but with a different lubricant to be more “environmentally friendly”. The whole thing is a huge racket.
My next door neighbor owns an HVAC company so I get all the ranting from him.
If you want to piss him off, get a quote on what he'd charge to install a new HVAC system you bought from him that matches your existing unit. Be sure to ask how many guys and how many days it will take to install. Usually 1 & 1.
Then go to HVACdirect.com to see what you can buy it for yourself. My neighbor gave me a quote for $13,000 back in 2018. I bought it direct for $3500 and paid a dude $1000 cash to install it. When he started bìtching I told him "Ray, based on your quote, I could just give you $3000 to do nothing and still save nearly $5000. Your business model is flawed."
Ray did not like me much after that.
The markup between the local HVAC companies and distributors is unbelievable. >50% of your cost is marketing and lead generation. Builders pay 1/4-1/3rd of the price that a homeowner will for hvac. They buy equipment direct and pay a licensed installer for the install only.