How to Start a Career in HVAC

HVAC technicians install, maintain, and repair heating, ventilation, air conditioning, and refrigeration systems. It's one of the most accessible and in-demand skilled trades, with strong wages and the kind of job security that comes from a simple fact: every building in America needs climate control.

What HVAC Techs Actually Do

Your day-to-day depends on your specialization and employer. Residential techs spend most of their time in homes — replacing furnaces, installing air conditioners, diagnosing thermostat issues. Commercial techs work on larger systems in offices, hospitals, and retail spaces. Industrial refrigeration techs maintain walk-in coolers, freezers, and process cooling systems.

Common tasks include:

• Diagnosing system failures using gauges, meters, and diagnostic software
• Installing ductwork, refrigerant lines, and electrical connections
• Charging systems with refrigerant (requires EPA 608 certification)
• Performing seasonal maintenance — cleaning coils, replacing filters, checking airflow
• Reading blueprints and wiring diagrams for new installations

The work is physical but not brutal. You'll be crawling in attics and crawlspaces, lifting equipment up to 50-75 pounds, and working outdoors in all weather. But you're not swinging a hammer all day.

Training Paths

Trade School (6-24 months)

HVAC certificate and associate degree programs teach you the fundamentals: refrigeration theory, electrical circuits, system design, and hands-on installation and repair. Programs typically run 6-12 months for a certificate or 2 years for an associate degree.

Tuition ranges from $5,000-20,000 depending on whether you attend a community college or a private technical school. Community colleges are almost always the better value.

After graduating, you'll typically start as a helper or junior tech and work your way up.

Apprenticeship (3-5 years)

Registered HVAC apprenticeships combine on-the-job training with classroom instruction. You earn a wage from day one — typically starting at $15-20/hour and increasing as you gain experience. Most programs require 8,000 hours of OJT and 144+ hours of related technical instruction per year.

The UA (United Association) and local HVAC contractor associations run many of these programs. The advantage: zero tuition, real-world experience, and a journeyman credential when you finish.

Which Path Is Better?

Trade school gets you working faster. An apprenticeship gives you deeper experience and a stronger credential. Many techs do both — attending trade school first, then entering an apprenticeship with a head start. Read our detailed comparison for more.

Certifications You'll Need

EPA 608 (Required)

Federal law requires anyone who handles refrigerants to hold EPA Section 608 certification. There are four types:

• Type I — small appliances (window units, fridges)
• Type II — high-pressure systems (most residential AC)
• Type III — low-pressure systems (commercial chillers)
• Universal — covers all three (this is what you want)

The exam is multiple choice, costs $20-40, and can be taken at trade schools or testing centers. Study for it — it's not a freebie.

NATE Certification (Recommended)

North American Technician Excellence certification is the industry gold standard. It's voluntary, but many employers prefer or require it. You'll need 2+ years of experience before testing.

State Licensing

Requirements vary by state. Some states require a license to do HVAC work independently; others don't. Most states that do require licensing also require a certain number of hours of supervised work. Check your state's requirements before you start.

Wages

HVAC technician wages vary significantly by location, specialization, and experience:

• Entry-level: $18-24/hour
• Mid-career (5-10 years): $26-36/hour
• Experienced / specialized: $38-52/hour
• National median: roughly $26-28/hour

Techs who specialize in commercial refrigeration, controls, or building automation systems tend to earn the most. Self-employed HVAC contractors with their own customer base can earn significantly more.

Overtime is common — especially during summer cooling season and winter heating emergencies. Many techs earn 10-20% above their base through overtime alone.

Job Outlook

The BLS projects 5-7% job growth for HVAC technicians through 2032, which translates to roughly 40,000 new positions. But the real story is replacement demand — tens of thousands of experienced techs are retiring each year, and there aren't enough new workers to fill the gap.

The transition to heat pumps and high-efficiency systems is also creating demand for techs who can install and service newer technology. If you learn heat pump systems, you'll have an edge.

Getting Started

1. Research programs near you — Search HVAC programs on SkillPlum to compare schools and apprenticeships in your area
2. Get EPA 608 certified — study and pass the Universal exam early; it shows employers you're serious
3. Apply broadly — HVAC companies, contractor associations, and unions all hire entry-level workers
4. Specialize over time — commercial refrigeration, building automation, and controls work pay the most

Browse HVAC trade schools and apprenticeships to find programs near you, or explore our full list of trade career guides to compare HVAC with other options.