Heating, air conditioning, and refrigeration mechanics and installers
SOC Code: 49-9021
Heating, air conditioning, and refrigeration mechanics and installers carries a 26% AI exposure score (Medium automation risk), with a median annual wage of $59,810 and +8.1% projected employment growth from 2024 to 2034 (BLS), affecting approximately 425,200 workers. Full task breakdown, skills, and employer data are below.
Proportion of tasks susceptible to AI automation (O*NET analysis)
At 26% AI exposure, Heating, air conditioning, and refrigeration mechanics and installers sits 11 points below the 37.2% average across 832 U.S. occupations - more exposed than 18% of them. Most of its core tasks still require human judgment.
Where Heating, air conditioning, and refrigeration mechanics and installers sits among all occupations
AI-exposure score distribution across 832 U.S. occupations (O*NET task analysis). This occupation is marked in rose.
Heating, air conditioning, and refrigeration mechanics and installers has ai exposure of 26%. Distribution: 1 occupations at 0-10%; 43 occupations at 10-20%; 184 occupations at 20-30%; 332 occupations at 30-40%; 158 occupations at 40-50%; 64 occupations at 50-60%; 29 occupations at 60-70%; 15 occupations at 70-80%; 5 occupations at 80-90%; 1 occupations at 90-100%.
Source: O*NET task data (U.S. Department of Labor); AI-exposure scores are PlainWorkforce's analysis. As of BLS 2024–2034.
Heating, air conditioning, and refrigeration mechanics and installers vs. its occupational neighbors
AI exposure (horizontal) vs projected 2024–2034 growth (vertical) for occupations in the same SOC group. Heating, air conditioning, and refrigeration mechanics and installers is marked in rose; the top-left corner is the most future-proof.
Source: BLS Employment Projections 2024–2034 (growth) and O*NET (AI-exposure analysis by PlainWorkforce).
Employment Projections
Occupation Insight
Heating, air conditioning, and refrigeration mechanics and installers (SOC 49-9021) carries an AI exposure score of 26%, placing it in the Medium automation-risk tier. This score is computed from O*NET Database 30.0 task-level analysis, where each task an occupation performs is evaluated against current generative AI, robotic process automation, and machine-learning capabilities. A score below 40% reflects tasks anchored in physical dexterity, unstructured environments, or high-touch human interaction that current AI cannot reliably replicate.
The economic context matters alongside the risk score. BLS counted approximately 425,200 workers in this occupation in 2024, and projects a +8.1% change through 2034 - modest growth that keeps the occupation viable even as tasks evolve. Median annual compensation stands at $59,810, reflecting both skill scarcity and the value employers place on the tasks that remain difficult to automate. Entry typically requires Postsecondary nondegree award, plus None of related experience.
For career planners, this profile should be read alongside the task, skill, and knowledge breakdowns below and the list of employers whose workforce composition includes Heating, air conditioning, and refrigeration mechanics and installers. Adjacent occupations shown further down offer lateral moves that preserve industry knowledge while potentially reducing exposure. Pair the AI exposure score with the BLS employment projection and wage percentiles above for a complete career assessment.
Education & Entry Requirements
Registered Apprenticeship Pathway Available
Heating, air conditioning, and refrigeration mechanics and installers is a recognized registered apprenticeship occupation under the DOL RAPIDS system. Earn while you train, apprentices typically start at ~$16/hr and reach $28–$46/hr upon completion, depending on the specific trade and region.
Top Tasks (O*NET)
- 1. Test electrical circuits or components for continuity, using electrical test equipment.
- 2. Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.
- 3. Study blueprints, design specifications, or manufacturers' recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.
- 4. Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
- 5. Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.
- 6. Adjust system controls to settings recommended by manufacturer to balance system.
- 7. Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.
- 8. Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.
- 9. Repair or replace defective equipment, components, or wiring.
- 10. Install or repair self-contained ground source heat pumps or hybrid ground or air source heat pumps to minimize carbon-based energy consumption and reduce carbon emissions.
Key Skills Required
- Operations Monitoring
- Critical Thinking
- Troubleshooting
- Reading Comprehension
- Installation
- Repairing
- Active Listening
- Complex Problem Solving
- Quality Control Analysis
- Speaking
Knowledge Areas
- Mechanical
- Building and Construction
- Customer and Personal Service
- Engineering and Technology
- Computers and Electronics
- English Language
- Public Safety and Security
- Design
- Physics
- Mathematics
Frequently Asked Questions
Will AI replace Heating, air conditioning, and refrigeration mechanics and installers?
Heating, air conditioning, and refrigeration mechanics and installers has an AI exposure score of 26%, indicating a medium level of automation risk. The majority of tasks in this role require human judgment, creativity, or physical presence that AI cannot easily replicate.
What is the job outlook for Heating, air conditioning, and refrigeration mechanics and installers?
According to BLS Employment Projections 2024-2034, Heating, air conditioning, and refrigeration mechanics and installers is projected to grow by 8.1% over the decade. Current employment stands at approximately 425,200 workers.
What skills are needed for Heating, air conditioning, and refrigeration mechanics and installers?
Key skills for Heating, air conditioning, and refrigeration mechanics and installers include Operations Monitoring, Critical Thinking, Troubleshooting, and others. Typical entry-level education is Postsecondary nondegree award.
How much do Heating, air conditioning, and refrigeration mechanics and installers earn?
The median annual wage for Heating, air conditioning, and refrigeration mechanics and installers is $59,810, according to BLS Occupational Employment and Wage Statistics (May 2024). Actual earnings vary by location, experience, industry, and employer. The BLS publishes detailed wage percentiles by region in its Occupational Employment and Wage Statistics program.
What education is required for Heating, air conditioning, and refrigeration mechanics and installers?
The typical entry-level education for Heating, air conditioning, and refrigeration mechanics and installers is Postsecondary nondegree award. Employers generally expect None of related work experience. On-the-job training typically involves Long-term on-the-job training. Requirements can vary by employer and specialization.
Which companies employ Heating, air conditioning, and refrigeration mechanics and installers?
Heating, air conditioning, and refrigeration mechanics and installers roles exist across many industries and employers. Workforce composition is estimated from BLS industry-occupation employment distributions matched to SEC-registered public companies.
AI Exposure Rating
Medium automation risk based on 10 analyzed tasks. Most tasks require human judgment and are resistant to automation.
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Career Guides
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Data sources: Bureau of Labor Statistics Employment Projections 2024–2034 and O*NET Database 30.0. Employment figures are rounded. Wage data from BLS Occupational Employment Statistics (OES).