Building a house or any facility requires permits that indicate strict adherence to government and, in some cases, even international requirements. Construction, like other professional fields, has its areas of specializations. Architects take care of the infrastructure material and design. The civil engineer enters the picture when constructing larger facilities that often involve elevators. The electrical engineer takes care of the proper wiring of the house or building. And of course, the HVAC or heat, ventilation, and air-conditioning contractor takes care of temperature control. The HVAC person is an expert on cost-efficient and practical HVAC systems, equipment, installation, and maintenance.

Because of the importance of the HV AC technicians job, there have been moves to further professionalize HV AC contractors through certifications and training sessions for technicians.

Training for HVAC practitioners is available online. Technicians can prepare for certification exams by watching HVAC audio-visual presentations or reading books on construction trade educational programs. There are also seminars sponsored by institutions and fairs held by HVAC manufacturers that are good venues for HVAC professionals to connect and get updated on the newest technology and applications in refrigerants, system evacuations, and commercial air conditioning, as well electronic, automatic, and programmable controls, among others. It is important that HVAC professionals only acquire the services of certified and accredited training providers. There many fake technicians out there that hoodwink customers.

People who have yet to start a career as an HVAC contractor may want to go into a career training program from a nearby vocational school or at home through distance learning and online class programs. Books, training manuals and other references are sent through mail or downloadable from the schools Web site. Through advancements in information technology, interactive learning experiences that simulate real laboratory scenarios are possible.