Does your house need a new heating and cooling system?
If you need to install a new HVAC system into your home let me suggest going with mini split systems. These type of air conditioning and heating systems have many benefits to them. One of the major advantages is that you can actually take the system with you if you ever move. Most HVAC companies actually have the capability to come to your old house and remove the entire system. Then they will relocate it to your new home and install the AC and heat pump for you.
If you use the same company you bought your AC system from many times the relocation is for free. This is a very good question to ask the company you are thinking about buying your system from. If the relocation is not free then you know that its best to move on to another company cause many offer this service for free.