An HVAC technician installs, maintains, and repairs heating, ventilation, air conditioning, and refrigeration systems — the furnaces, air conditioners, heat pumps, and chillers that keep homes and buildings working year-round.
Federal labor statistics treat the work as one occupation, and the duties range from electrical wiring and refrigerant handling to diagnosing failures and explaining repairs to customers.
This guide covers the job, the duties, where technicians work, and where the career leads.
What does an HVAC technician do day to day?
The U.S. Bureau of Labor Statistics (BLS) sums up the occupation as installing, maintaining, and repairing heating, air conditioning, and refrigeration (HVACR) systems.
Its published duty list for the trade:
- Installing, maintaining, and repairing HVACR systems
- Installing electrical components and wiring
- Inspecting and testing HVACR systems and components
- Discussing system malfunctions with customers
- Repairing or replacing defective parts
- Recommending maintenance
- Keeping records
O*NET, the federal occupational database, rates 'discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions' as the highest-importance core task for the occupation, with an importance rating of 85.
The rest of the top tier is hands-on: testing electrical circuits or components for continuity with electrical test equipment (83), repairing or replacing defective equipment, components, or wiring (81), and laying out and connecting control wiring from wiring diagrams (81).
The job divides in two.
Some technicians specialize in installation — setting and connecting new systems — while others focus on service, repairing and maintaining equipment already in place.
That split shapes the job titles employers use, as the role map below shows.
What does HVAC and HVACR stand for?
HVAC stands for heating, ventilation, and air conditioning.
Add an R for refrigeration and you get HVACR — the full scope of the trade, covering cooling equipment from residential air conditioners to commercial refrigeration.
The federal government defines the whole field as one occupation: Heating, Air Conditioning, and Refrigeration Mechanics and Installers, SOC 49-9021.00.
O*NET's definition covers workers who 'install or repair heating, central air conditioning, HVAC, or refrigeration systems, including oil burners, hot-air furnaces, and heating stoves' — a reminder that the trade includes combustion equipment, not only cooling.
Employers use the names interchangeably in job ads: HVAC technician, HVACR technician, HVAC mechanic, and AC tech all describe the same work.
Where do HVAC technicians work: service, install, commercial, industrial
Most HVAC technicians work for contractors.
In 2025, 68% of HVACR mechanic and installer jobs were with plumbing, heating, and air-conditioning contractors, and 6% of workers were self-employed, according to the BLS Occupational Outlook Handbook.
That handbook counts 440,900 total jobs for the occupation, including the self-employed.
Payroll survey data shows the same concentration: of 409,670 wage-and-salary jobs counted in May 2025, 305,330 were with building equipment contractors — the mechanical contractors that install and service building systems.
Smaller numbers worked for merchant wholesalers (12,190) and fuel dealers (8,480).
The work itself follows the federal definition of the trade: heating plant such as hot-air furnaces, oil burners, and heating stoves; central air conditioning; and refrigeration systems.
On top of that, the BLS notes that some technicians specialize in installation while others repair and maintain systems, and some specialize further — in radiant heating systems, testing and balancing, or commercial refrigeration.
Geography concentrates the work, too.
The metro areas with the most HVACR jobs in May 2025 were New York-Newark-Jersey City (21,820 jobs), Dallas-Fort Worth-Arlington (10,910), and Los Angeles-Long Beach-Anaheim (10,720), according to the OEWS survey.
Who does the work?
The CPS household survey counted 561,000 employed HVACR mechanics and installers in 2025 — a count that includes the self-employed, so it runs above the payroll figures.
Women were 2.7% of the occupation in 2025, and Hispanic or Latino workers were 26.7%.
The median age was 39.9, slightly below the all-worker median of 42.1.
What are the main HVAC job titles and how do they connect?
Because the trade spans installation, service, and different equipment classes, employers use many titles — often for the same work.
O*NET's sample job titles for the occupation include AC Mechanic, AC Tech, HVAC Control Tech, HVAC Installer, and HVAC Mechanic.
The most common roles break down like this:
- HVAC service technician — the repair-focused half of the trade: diagnosing failed systems and fixing them in the field.
- HVAC installer — the installation-focused half: setting and connecting new furnaces, air conditioners, and complete systems.
- Commercial HVAC technician — works on the larger equipment and building systems found in commercial buildings.
- Refrigeration technician — specializes in refrigeration and cooling; federal statistics count this work inside the same HVACR occupation rather than as a separate one.
- HVAC controls technician — specializes in the control side of the trade, laying out and connecting control wiring from wiring diagrams.
- HVAC apprentice — learns the trade on the job under experienced technicians.
The connections run through function and equipment.
The BLS notes that some technicians specialize in installation while others repair and maintain systems, and some go deeper still — in radiant heating systems, testing and balancing, or commercial refrigeration.
Refrigeration sits inside the same federal occupation, not outside it.
What do you need to become one?
Entry requirements are moderate.
O*NET places the occupation in Job Zone Three ('Medium Preparation Needed'), meaning most people prepare with vocational training, related on-the-job experience, or an associate's degree.
One requirement is federal and applies everywhere: under the EPA's refrigerant rules (40 CFR 82.161), any technician who could reasonably be expected to open the refrigerant circuit — maintaining, servicing, repairing, or disposing of appliances containing regulated refrigerants such as HFCs — must pass an exam from an EPA-approved technician certification program.
Trade licensing beyond that federal certification is state-run, and the names differ: 'Air Conditioning and Refrigeration (ACR)' in Texas, 'Conditioned Air' in Georgia, 'Heating, Piping, Cooling' in Connecticut, and 'Mechanical' classifications in Michigan, Iowa, Oklahoma, and other states.
Trade schools and employers in your area will know which rules apply to the work you would be doing.
This page is career information, not legal advice. Confirm licensing requirements with your state licensing board or local building department.
Rules change — confirm locally
How much do HVAC techs make?
The median wage for HVACR mechanics and installers (SOC 49-9021) was $29.33 per hour, or $61,010 per year, in May 2025, according to the BLS Occupational Employment and Wage Statistics (OEWS) survey — the wage survey BLS released on May 15, 2026.
Half the occupation earned more, and half earned less.
The middle half earned between $48,360 and $77,060 a year; the 10th-percentile wage was $40,050 and the 90th-percentile wage $95,210.
Two caveats keep those numbers honest.
The OEWS survey excludes overtime pay, shift differentials, and non-production bonuses such as sign-on pay, so technicians who work substantial overtime can out-earn the survey figures.
And the figures are national: the states with the most HVACR jobs in May 2025 were Florida (39,160 jobs), California (35,130), and Texas (34,730), and pay shifts with the local market — the state-by-state breakdown is on our HVAC technician salary page.
Is HVAC a good career?
On the numbers that can be verified, the outlook is strong.
BLS projects employment of HVACR mechanics and installers to grow 11% from 2025 to 2035 — much faster than the average for all occupations — with 40,600 openings a year on average, many from replacing workers who retire or change occupations.
Whether HVAC is a good career for you depends on what you want from the work.
On preparation, O*NET places the occupation in Job Zone Three: most people enter with vocational training, related on-the-job experience, or an associate's degree — not a bachelor's degree.
The fuller evaluation, weighing those factors against the growth, openings, and pay figures above, goes beyond this definition page.
Where to find HVAC technician jobs
HVACHires is a job board built only for HVAC and plumbing.
Contractors post their open roles directly, and you can browse HVAC technician jobs whenever you are ready to apply.
Because 68% of the occupation works for plumbing, heating, and air-conditioning contractors, applying directly to the contractors hiring in your area is the most direct route in.