Heating, air conditioning, and refrigeration mechanics and installers

Install or repair heating, central air conditioning, HVAC, or refrigeration systems, including oil burners, hot-air furnaces, and heating stoves.

AI Resistance Index 94 of 99

Among the most resilient careers: more resilient than 94% of the 831 careers we score. AI exposure is low (the Bureau of Labor Statistics rates it moderate), and US jobs are projected to change by +10.9% by 2035, much faster than average. The work leans on physical dexterity and ethical judgement.

AI struggles with much of this work, and US employers are expected to hire more people into it than average.

Median pay (2025): $61,010
Job growth to 2035: +10.9%
Openings a year: 40,600
People doing it (2025): 441,000
Usual route in: College certificate, then long on-the-job training

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Where people already use AI for this work

Maintain facilities or equipment
Adjust equipment to ensure adequate performance
Test performance of equipment or systems

From Microsoft Research, Working with AI (2025).

Work AI rarely helps with

Install energy or heating equipment
Repair tools or equipment
Maintain operational records

What the work looks like

Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
Test electrical circuits or components for continuity, using electrical test equipment.
Repair or replace defective equipment, components, or wiring.
Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools.
Schedule work with customers and initiate work orders, house requisitions, and orders from stock.

From O*NET 31.0, US Department of Labor.

What the Bureau of Labor Statistics expects

More of these jobs, as maintenance and repair teams from the commercial and industrial machinery and equipment repair industry are needed to serve the rapidly expanding data center market's cooling and air quality needs instead of plumbing, heating, and cooling contractors.
More of these jobs, as manufacturers of heating, air-conditioning, and refrigeration equipment create installation, maintenance, and repair teams to serve the rapidly expanding data center market.

Careers using similar strengths, with a stronger outlook

Commercial diversHuman edge, growing, Index 97, +4.8%
Wind turbine service techniciansHuman edge, growing, Index 99, +29.5%
Aircraft mechanics and service techniciansHuman edge, growing, Index 98, +5.4%
Mobile heavy equipment mechanics, except enginesHuman edge, growing, Index 99, +6.7%

Also known as: HVAC Mechanic (Heating, Ventilation, and Air Conditioning Mechanic), HVAC Tech (Heating, Ventilation, and Air Conditioning Technician), Refrigeration Mechanic, Refrigeration Technician (Refrigeration Tech), AC Mechanic (Air Conditioner Mechanic), AC Tech (Air Conditioning Technician), HVAC Control Tech (Heating, Ventilation, and Air Conditioning Control Technician), HVAC Installer (Heating, Ventilation, and Air Conditioning Installer).

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Sources: US Bureau of Labor Statistics Employment Projections 2025 to 2035; O*NET 31.0; Microsoft Research (2025); Anthropic Economic Index (2026); Eloundou and colleagues (Science, 2024); Felten, Raj and Seamans (2023). How we score. Updated 12 October 2026.