A refrigeration technician installs, maintains, and repairs the refrigeration systems that keep commercial and industrial facilities cold: walk-in coolers and freezers, reach-in cabinets, ice machines, supermarket compressor racks, cold-storage warehouses, and large industrial refrigeration plants.
Federal wage data counts the role inside the HVACR occupation, and the work centers on refrigerant circuits, compressors, and electrical controls.
This guide covers the equipment, the employers, the training routes, pay benchmarks, and where to find open refrigeration jobs.
What does a refrigeration technician work on?
The equipment list is the clearest way to define the job.
A refrigeration technician works on walk-in coolers and freezers, reach-in cabinets, display cases, ice machines, supermarket compressor racks, cold-storage boxes, and the larger central and industrial systems that keep food, medicine, and other perishables at temperature.
Federally, the role has no standalone definition.
O*NET classifies refrigeration work inside Heating, Air Conditioning, and Refrigeration Mechanics and Installers (SOC 49-9021): workers who install or repair heating, central air conditioning, HVAC, or refrigeration systems, including oil burners, hot-air furnaces, and heating stoves.
BLS example titles for the occupation include Refrigeration Systems Installer and HVAC Mechanic, and postings in the field also run under titles like refrigeration mechanic or refrigeration service technician.
O*NET's sample job titles for the combined code run just as broad: AC Mechanic, AC Tech, HVAC Control Tech, HVAC Installer, and HVAC Mechanic.
The day-to-day duties BLS lists for the occupation read like a refrigeration job description: installing, maintaining, and repairing HVACR systems; installing electrical components and wiring; inspecting and testing systems; discussing malfunctions with customers; repairing or replacing parts; recommending maintenance; and keeping records of the work.
- Diagnosis first. O*NET rates "discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions" as the occupation's highest-importance core task.
- Electrical testing. Other top-rated tasks include testing electrical circuits or components for continuity with electrical test equipment, repairing or replacing defective equipment, components, or wiring, and connecting control wiring from wiring diagrams.
- Install or service. BLS notes that some technicians specialize in installation while others repair and maintain systems already in place.
Those are also the core refrigeration technician skills employers screen for: systematic troubleshooting, electrical diagnostics, and controls work around a refrigerant circuit.
Commercial vs industrial refrigeration
The trade splits into two broad worlds.
Commercial refrigeration is the equipment you see in retail food and food service: walk-in coolers and freezers, reach-in cabinets, display cases, ice machines, and the multi-compressor racks that run a supermarket's cold line.
Industrial refrigeration covers the bigger engineered systems: cold-storage distribution centers and food and beverage plants, where large central systems hold product at temperature around the facility.
BLS notes that some technicians specialize in commercial refrigeration specifically, one of several specialties inside the occupation.
Large ammonia systems are a further specialty inside industrial refrigeration.
The difference shows up in the work: commercial techs usually cover many small systems across service routes, while industrial work concentrates on a smaller number of much larger, more complex plants.
Both sides center on the same core — a refrigerant circuit, compressors, and the controls that hold temperature.
Who employs refrigeration technicians
The largest industry employer in the federal data for the combined HVACR occupation (SOC 49-9021) is Building Equipment Contractors — 305,330 wage-and-salary workers in May 2025 — followed by Merchant Wholesalers, Durable Goods (12,190) and Fuel Dealers (8,480).
The equipment also defines the wider employer landscape.
The systems in this guide run where food is sold, served, and stored — grocery stores, restaurants, cold-storage warehouses, and food and beverage plants — and that work reaches those facilities either through service contractors or through technicians the business employs directly.
How refrigeration work differs from HVAC work
On paper, there is no separate occupation to compare: O*NET retired the old refrigeration-installer code and directs users to the single combined 49-9021, so every federal definition, wage, and projection for refrigeration techs is the combined HVACR figure.
The combined definition itself covers heating, central air conditioning, HVAC, and refrigeration systems in one occupation.
In the field, the title signals scope.
"Refrigeration technician" centers on cooling-only equipment — keeping product and spaces cold — while "HVAC technician" more often describes comfort systems: heating and air conditioning in homes and commercial buildings.
An air conditioning and refrigeration technician or HVAC and refrigeration technician posting usually means one person expected to cover both.
The underlying skills transfer in both directions — the same refrigerant circuit, electrical diagnosis, and the same EPA certification requirement that applies to anyone working on a refrigerant circuit.
How to become a refrigeration technician
There is no single national route into the trade.
O*NET places the occupation in Job Zone Three ("Medium Preparation Needed"), where most occupations require vocational training, related on-the-job experience, or an associate's degree.
In practice that means three common entries: starting as a helper or apprentice, completing a trade school program, or moving over from HVAC experience.
One requirement is federal and applies to everyone who touches a refrigerant circuit.
Under EPA rules at 40 CFR 82.161, any person who could reasonably be expected to violate the integrity of the refrigerant circuit while maintaining, servicing, repairing, or disposing of appliances containing CFC/HCFC or non-exempt substitute refrigerants (such as HFCs) must pass an exam from an EPA-approved technician certification program — the Section 608 certification.
The certification is practical as well as legal: only EPA-certified technicians may buy ozone-depleting or substitute refrigerants such as HFCs, with limited exceptions.
An employer may buy if it gives the wholesaler written evidence that it employs at least one certified technician.
Apprentices get a narrow exemption: they are excused from the certification only while closely and continually supervised by a certified technician, and both share responsibility for compliance.
Verify requirements before you enroll or apply
What refrigeration technicians are paid
Start with the data caveat: BLS publishes no separate wage for refrigeration technicians or chiller technicians — they are counted inside SOC 49-9021, Heating, Air Conditioning, and Refrigeration Mechanics and Installers.
Every pay figure on this page is that combined HVACR occupation, not a refrigeration-only number.
In May 2025 (OEWS, released May 15, 2026), the occupation had 409,670 wage-and-salary jobs, excluding the self-employed, and a median wage of $29.33 an hour, or $61,010 a year.
The outlook is part of the pitch: BLS projects 10.9% employment growth for the occupation from 2025 to 2035, against a 3.5% average for all occupations, with an average of 40,600 openings a year.
The projection counts the self-employed too — 440.9k jobs in 2025 rising to a projected 489.1k by 2035 — while the 409,670 figure above covers wage-and-salary workers only.
For the state, metro, and percentile breakdowns of that same combined-SOC data, see the refrigeration technician salary page.
Find refrigeration technician jobs
BLS's May 2025 OEWS counts for the combined occupation (wage-and-salary workers only) show the largest state job pools in Florida (39,160), California (35,130), Texas (34,730), New York (24,430), and Pennsylvania (15,880); the largest metros were New York-Newark-Jersey City (21,820), Dallas-Fort Worth-Arlington (10,910), Los Angeles-Long Beach-Anaheim (10,720), Miami-Fort Lauderdale-West Palm Beach (9,140), and Washington-Arlington-Alexandria (8,730).
Search under every title the trade runs on: refrigeration technician, refrigeration mechanic, refrigeration service technician, and air conditioning and refrigeration technician all describe the same core work, and employers mix the labels freely.
HVACHires lists refrigeration technician jobs at HVAC and plumbing contractors — browse open refrigeration technician jobs to see what is live today.
This page is career information, not legal advice. Certification and licensing requirements come from the U.S. EPA and from state or local authorities — confirm the current rules with them before you apply.