1. Work on figuring out who in your area offers an ac repair service. Are they able to just help with that or will they be able to check on your heating system too? Any HVAC company can be considered, and there are probably people that just do the AC repair work as well.
2. What will you have to pay? Figuring out the price of the services you have available is the next step. They need to be able to charge a fair amount, but also need to be skilled enough to be charging the right amount. Try getting a few quotes and then you should look to see what you get for the money.
3. Find reviews for the affordable services and the ones that are a little more. See if the cheap and more expensive ones come with great customer service, and seek out information on why some may cost more like having a more skilled professional that is going to help you. When looking for reviews it’s best to get them from a source that is not connected to a company like a third party site where people can say whatever they like about companies (I recommend you check out miami air conditioning).