While most people have some idea of what repair people are and how they operate but are not entirely up to speed on different specialists that can work in your home. One of these specialists is an HVAC technician who works specifically with HVAC systems. An HVAC technician can do a variety of specific things in your home, and here is a short list of some of their duties so you can know when it is you need to call an HVAC technician.
The first thing an HVAC technician does on the day-to-day is repairs. Repairs in the furnace, cooling units, thermostats, and anything similar is the specialty of HVAC technicians. They can assess the issues and repair any problems related to HVAC systems in a home or building.
They are also responsible for maintenance of HVAC systems. If the system need to be checked to make sure it is working, or needs routine maintenance done, that is the job of an HVAC technician.
If a new building needs an HVAC unit, or an existing unit needs replacing, an HVAC technician can install a new one. They typically will follow the specifications given to them by the designer of the home, but they have freedom to choose whatever HVAC system they have determined is the best fit for the home. They can install the ductwork and units required to get an HVAC system up and running in your home or building.
That is only a short list of the things HVAC technicians are qualified for, but these are some of the main things they do on the day to day. If it is an issue relating to repairing, maintaining, or installing an HVAC system, you need to call a professional HVAC technician to look at it.