Geothermal technicians install, maintain, and repair the systems that harness heat from the earth to warm and cool buildings. It is hands-on, in demand, and you can start with a high school diploma. Here is what the work involves, what skills matter, and how to get in.
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Geothermal technicians work with heating and cooling systems that use the earth's natural temperature to regulate indoor climates. You will install equipment, monitor system performance, and troubleshoot problems when they arise. The work involves reading technical documentation, communicating with supervisors and team members about job progress, and operating specialized machinery and tools. You may also handle and move heavy components and operate vehicles to travel between job sites. Safety and precision are central to the role.
Core work activities
Career video courtesy of CareerOneStop.
Geothermal Technicians earn a median of $49,230 a year, based on 2025 data from the U.S. Bureau of Labor Statistics. Pay rises with experience, specialty, and location.
The outlook is modest. Employment is projected to grow 2 percent from 2024 to 2034, little or no change for all occupations, with about 21,500 openings a year.
Top skills
Knowledge areas
Most geothermal technician positions require a high school diploma or equivalent as a starting point. From there, you will typically complete on-the-job training under experienced technicians, learning how geothermal systems work and how to install and maintain them safely. Some employers offer formal apprenticeships or technical training programs that combine classroom instruction in mechanical systems, physics, and safety with hands-on experience. The preparation level is moderate, meaning you will need some training but not a four-year degree.
Most paths into geothermal work start with high school and move into apprenticeships or employer-sponsored training. If you are exploring whether this route fits your timeline and goals, Pathly can map the geothermal technician path that fits you to map out the steps with your counselor.
You do not need a license to work as a geothermal technician, but professional certifications can strengthen your resume.
Common certifications
You are drawn to hands-on work with machines and systems. You think through problems logically, stay focused on details, and communicate clearly with others on a team.
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Last updated July 1, 2026.
Data sources. Career details from the O*NET 30.3 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under CC BY 4.0. O*NET® is a trademark of USDOL/ETA. Salary and outlook figures from the U.S. Bureau of Labor Statistics (May 2025 wages; 2024–2034 projections), delivered via the CareerOneStop API. Certification, licensing, wage, and outlook data from CareerOneStop, sponsored by USDOL/ETA and the Minnesota Department of Employment and Economic Development (DEED).