Heating, air conditioning, and refrigeration technician

National median pay

$61,010

per year · $29.33 per hour

May 2025

Projected employment change

+11%

2025–35

Much faster than average

Jobs in the United States

440,900

Projected openings each year: 40,600

Typical entry-level education

Postsecondary nondegree award

On-the-job training

Long-term on-the-job training

What the occupation does

An HVACR technician keeps buildings at the right temperature and the air in them clean. The work splits roughly three ways: installation on new construction and replacements, planned maintenance, and emergency repair. A technician reads the system through gauges, meters, and diagnostic controls, then decides whether the problem is mechanical, electrical, or a matter of airflow. Refrigerant handling is regulated, so the environmental side of the job matters as much as the mechanical side.

Common daily responsibilities

• Install, maintain, and repair heating, cooling, ventilation, and refrigeration systems.
• Install and connect the electrical components and controls that run them.
• Inspect and test systems with gauges, meters, and diagnostic equipment.
• Talk through symptoms with the customer or building manager.
• Repair or replace worn compressors, motors, fans, thermostats, and control boards.
• Recover, recycle, and handle refrigerants to the regulations that apply.
• Keep records of the work done, parts used, and readings taken.

Typical work environments

• Residential service: a different house every few hours, often in attics, basements, and crawl spaces.
• Commercial buildings: rooftop units, chillers, and large air handling systems.
• Industrial and commercial refrigeration: supermarkets, restaurants, cold storage, and food processing.
• New construction, installing ductwork and equipment before a building opens.

Skills and abilities needed

• Mechanical reasoning and the patience to work a problem down step by step.
• Basic electrical knowledge, because modern systems are controlled electronically.
• Physical fitness for ladders, rooftops, and confined spaces in all weather.
• Customer communication, since you are often in someone's home or business.
• Record-keeping discipline, both for the customer and for refrigerant regulations.
• Willingness to keep learning, because equipment and refrigerants change regularly.

Ways to enter the occupation

• Postsecondary certificate, then employment

  The most common entry point. A six-month to two-year HVACR certificate from a community college or technical school, followed by supervised work with an employer. Look for programmes that include hands-on lab time on real equipment.

  Typical duration: 6 months to 2 years

• Registered apprenticeship

  Less common than in electrical or plumbing, but available through some union locals and larger mechanical contractors. Paid, with structured classroom instruction.

  Typical duration: Usually 4 to 5 years

• Helper entry with on-the-job training

  Some employers hire with no formal training and teach the trade over several years. This route depends heavily on finding a good employer.

  Typical duration: 3 to 5 years of on-the-job training

• Military training

  Refrigeration and utilities specialties in the armed forces cover much of the same ground and can translate into civilian experience.

  Typical duration: Varies

How long training takes

A certificate usually takes six months to two years. After that, employers typically provide a further three to five years of on-the-job training before a technician is fully competent on their own. Where the entry is a registered apprenticeship, expect about four to five years in total. Refrigerant handling certification is a short additional requirement, not a substitute for the trade training.

Licensing and certification

The picture is mixed and it matters. Some states and cities require an HVAC contractor licence to perform work for the public, and many require a separate licence or registration for the business. Federal rules require certification to handle refrigerants, and that certification is not optional. Voluntary industry certifications, such as those from trade associations, demonstrate competence to employers but do not replace a state licence where one is required.

This describes the general pattern. It is not a statement about the rules in your state, and nothing here means a trade is licensed nationwide.

Do requirements differ by state?

Yes. Whether a state or local licence is required at all, what it is called, and whether it is issued to the individual, the business, or both varies considerably. Refrigerant certification is a federal requirement and applies everywhere. Check the licensing body where you intend to work rather than assuming a rule carries across a state line.

How to find a legitimate program

Look for programmes that are accredited by a recognised HVACR accrediting body and that publish their lab facilities and equipment. Ask what proportion of the programme is hands-on, what certification the course prepares you for, and whether local employers hire from it. Search Apprenticeship.gov for registered mechanical programmes. No school can promise you a licence or a job.

Career advancement

• Lead technician or service manager, running a crew and handling the hardest calls.
• Specialisation: commercial refrigeration, industrial process cooling, building controls and automation, or geothermal and heat pump systems.
• Starting your own service company, which usually requires a contractor licence and business registration.
• Manufacturer service representative or field engineer for a specific equipment brand.
• Teaching at a technical programme, once you have enough field experience.

Self-employment

Starting an HVACR service business is a common goal and is realistic, but it is more regulated than it looks. Many states require a contractor licence, which often requires several years of documented experience and a business and law exam, and some require the licence to be held by an individual who is not the owner.

Self-employment usually brings its own requirements on top of the trade itself, such as a business registration, a contractor licence, insurance, or a bond. Those are separate from the occupational licence and are set by your state.

Related occupations

• Electrician
• Plumber, pipefitter, and steamfitter
• Diesel service technician and mechanic
• Industrial machinery mechanic, maintenance worker, and millwright

Official resources and next steps

• U.S. Bureau of Labor Statistics — Occupational Outlook Handbook

  The federal source for the pay, education, and employment projections shown on this page.

• Apprenticeship.gov — U.S. Department of Labor

  The official register of registered apprenticeship programmes. Search by trade and by state, and confirm that a programme is registered before you trust it.

• CareerOneStop — U.S. Department of Labor

  Official wage data for your own area, local training listings, and the American Job Center nearest you.

• O*NET OnLine — U.S. Department of Labor

  A detailed breakdown of the tasks, tools, and knowledge each occupation actually involves, maintained by the Department of Labor.

• U.S. Department of Labor

  Federal rules on wages, safety, and training, and the starting point for finding the state agency that governs a trade.