Can you fix Houston Air Conditioning Systems? If you cannot, you should call someone who can do it. I know that many people don’t want to call up some pros because they don’t have a lot of money. Well, I am even going to suggest something different to you. You need to buy the best AC system and you need to call someone to check it every summer. You need to call them even if the system is working perfectly. The AC system is usually complicated and it can stop working just like that. So be ready and don’t take any chances.