HVAC is a big business in South Florida. There are a lot of HVAC companies that offer services and products to people who need them. But, not all HVAC companies are the same. Some of them offer subpar products. Some of them don’t care about their customers or the environment. Some of them don’t have any regard for your safety. So how do you know which companies are good and which ones aren’t? You can start by looking at these five unforgivable sins of HVAC: Read More about HVAC for five unforgivable sins.