HVAC / Environmental Service | WTCS Skip to content

Find Your Program

Career Area: Architecture and Construction
Program Number: 50-401-0
Credit Program
Most credit programs are eligible for financial aid, while most non-credit certificates provide valuable work-related skills on a short timeline. Check with the college offering the program to determine if it is eligible for financial aid.
HVAC equipment and burner control

Mechanical, electrical and electronic components found in HVAC work.

HVAC / Environmental Service Careers

Heating, air conditioning and refrigeration systems consist of many mechanical, electrical and electronic components, including motors, compressors, pumps, fans, ducts, pipes, thermostats and switches. In central heating systems, a furnace heats air that is distributed throughout the building by a system of metal or fiberglass ducts. Technicians must be able to maintain, diagnose and correct problems throughout the entire system. They may adjust system controls to recommended settings and test the performance of the entire system using special tools and test equipment. The work involves installing ductwork, and installing and wiring environmental control systems.

Work is performed both indoors and outdoors in spaces ranging from outside on scaffolding to crawl spaces inside walls. Work requires physical stamina with considerable bending, lifting, carrying, pushing and pulling.



HVAC Heating, Ventilation and Air Conditioning creating safe and comfortable environments for the benefit of those living and working in them. The Environmental Services Technician (EST) Apprenticeship program is an employer-sponsored, hands-on training program under the supervision of a joint apprenticeship committee. If you're interested in knowing how to install, repair and maintain HVAC systems, a career as a journey-level environmental services technician may be an excellent career choice for you.

Details and Requirements

  • 5-year training program
  • 8,440 hours on-the-job training
  • 560 hours paid related instruction
  • Additional related instruction may be required
  • Courses include blueprint reading, mathematics, electrical code requirements, and safety and first aid practices

Apprenticeship Information

  • Applicants must be at least 17 years of age
  • High school diploma or equivalent
  • Meet required norms on aptitude test (if required)
  • Physically able to perform trade
  • Valid driver's license or reliable transportation

Wisconsin Technical College HVAC / Environmental Service Programs