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How to become an HVAC technician in Connecticut
Technicians who maintain, service, repair or dispose of equipment that could release refrigerants need the federal EPA Section 608 certification, except for an apprentice closely and continually supervised by a certified technician. Heating, cooling and sheet metal workers must also be licensed by Connecticut's Department of Consumer Protection: the D-2 limited warm air, air conditioning and refrigeration journeyperson license and the S-2 unlimited heating, piping and cooling journeyperson license each take a registered apprenticeship or equivalent experience and training, and an exam. Heating, Air Conditioning, and Refrigeration Mechanics and Installers in Connecticut earned a median $76,610 a year in May 2025 ($36.83 an hour).
HVAC technician licensing in Connecticut
The licensing authority is Connecticut Department of Consumer Protection (Heating, Piping, Cooling and Sheet Metal Work Examining Board). The pages each row was read from are listed under the table, with the date each was read.
| License | What it takes | Experience | Exam | Fee |
|---|---|---|---|---|
| EPA Section 608 Certification (federal) | Required nationwide for technicians who maintain, service, repair or dispose of equipment that could release refrigerants, except apprentices closely and continually supervised by a certified technician: Type I (small appliances), Type II (high- and very-high-pressure, other than small appliances and motor-vehicle air conditioners), Type III (low-pressure) or Universal (all). Pass an EPA-approved test; the credential does not expire. | — | EPA-approved Section 608 test (Type I / II / III / Universal) | not published |
| Registered apprentice (Connecticut Department of Labor) | Apprenticeship rests on an employer-employee relationship: a sponsor employer registers its apprentices with the Connecticut Department of Labor's Office of Apprenticeship Training through e-Apprenticeship. In the licensed trades, registered apprenticeship lets an employer hire workers other than licensed journeypersons. The pages read do not publish a registration fee. | — | — | not published |
| D-2 Limited Warm Air, Air Conditioning and Refrigeration Journeyperson | Complete a registered apprenticeship program, which the Department's chart of trade licenses lists at 4,000 on-the-job training hours and 432 related instruction hours, or equivalent experience and training. Then the exam: the journeyperson application fee is $90, nonrefundable, and the exam vendor charges its own fee at registration. A D-2 holder installs, repairs, replaces, maintains or alters warm air, air conditioning and refrigeration systems, but not oil burners, only while under the supervision of a licensed contractor. Heating, cooling and sheet metal work licenses expire every year on August 31; the journeyperson renewal fee is $120. | 4,000 hrs (≈ 2 yrs) | Connecticut D-2 journeyperson license exam (through the exam vendor) | $90 |
| S-2 Unlimited Heating, Piping and Cooling Journeyperson | The unlimited license covers all heating, piping and cooling work, sheet metal work included, only while under the supervision of a licensed contractor. It takes a registered apprenticeship program, which the Department's chart of trade licenses lists at 8,000 on-the-job training hours and 576 related instruction hours, or equivalent experience and training; then the exam. The journeyperson application fee is $90, nonrefundable, and the exam vendor charges its own fee at registration. | 8,000 hrs (≈ 4 yrs) | Connecticut S-2 journeyperson license exam (through the exam vendor) | $90 |
| D-1 Limited Warm Air, Air Conditioning and Refrigeration Contractor | Two years as a properly licensed journeyperson or equivalent experience and training, then the contractor exam; the contractor application fee is $150, nonrefundable, and the contractor renewal fee is $150. | — | Connecticut D-1 contractor license exam (through the exam vendor) | $150 |
Reciprocity. Connecticut has no reciprocal agreements with any other jurisdiction. The Department takes journeyperson applications under an equivalent out-of-state license.
Renewal. Every year: heating, cooling and sheet metal work licenses expire August 31 ($120 for a journeyperson).
Licensing sources: EPA Section 608 Technician Certification (retrieved 2026-10-03) · Connecticut Department of Consumer Protection: heating, cooling and sheet metal work licenses (retrieved 2026-10-03) · Connecticut Department of Consumer Protection: heating, piping and cooling license types and scope of work (retrieved 2026-10-03) · Connecticut Department of Consumer Protection: heating and cooling (retrieved 2026-10-03) · Connecticut Department of Consumer Protection: careers in the trades license types (retrieved 2026-10-03) · Connecticut Department of Labor: apprenticeship registration (retrieved 2026-10-03) · Connecticut Department of Labor: apprenticeship overview (retrieved 2026-10-03). Requirements change; confirm with Connecticut Department of Consumer Protection (Heating, Piping, Cooling and Sheet Metal Work Examining Board) before you act.
Years to this license at your hours a week → · Every fee here, itemised and totalled → · Compare time and cost across trades and states →
Common questions
Do you need a license to work as an HVAC technician in Connecticut?
Technicians who maintain, service, repair or dispose of equipment that could release refrigerants need the federal EPA Section 608 certification, except for an apprentice closely and continually supervised by a certified technician. Heating, cooling and sheet metal workers must also be licensed by Connecticut's Department of Consumer Protection: the D-2 limited warm air, air conditioning and refrigeration journeyperson license and the S-2 unlimited heating, piping and cooling journeyperson license each take a registered apprenticeship or equivalent experience and training, and an exam.
What does it cost to get licensed as an HVAC technician in Connecticut?
The published fees in the table above run from $90 to $150 depending on the tier. Read each tier's requirements for any exam or license-issue fee charged on top.
How long does it take to become an HVAC technician in Connecticut?
You can be licensed as D-2 Limited Warm Air, Air Conditioning and Refrigeration Journeyperson after 4,000 hours of on-the-job training. The time-to-journeyman calculator turns the hours into years at your own hours a week. S-2 Unlimited Heating, Piping and Cooling Journeyperson, a separate license, takes 8,000 hours.
How much do HVAC technicians make in Connecticut?
Heating, Air Conditioning, and Refrigeration Mechanics and Installers in Connecticut earned a median $76,610 a year in May 2025, $36.83 an hour. That median is 26% above the national figure of $61,010, and Connecticut ranks 5 of 51 by pay for this trade.
What HVAC technicians earn in Connecticut
Heating, Air Conditioning, and Refrigeration Mechanics and Installers in Connecticut earned a median $76,610 a year in May 2025, $36.83 an hour. 3,800 people held the job, 2.2 for every 1,000 jobs in the state. That median is 26% above the national figure of $61,010, and Connecticut ranks 5 of 51 by pay for this trade.
The full wage spread in Connecticut
| Point | Hourly | Annual | Meaning |
|---|---|---|---|
| 10th percentile | $21.77 | $45,280 | A tenth of the workforce earns less than this. |
| 25th percentile | $29.02 | $60,360 | A quarter earn less. |
| Median | $36.83 | $76,610 | Half earn less, half earn more. |
| 75th percentile | $41.66 | $86,650 | A quarter earn more. |
| 90th percentile | $48.15 | $100,160 | A tenth earn more than this. |
| Mean | $35.38 | $73,590 | The average. Pulled up by the top earners. |
Annual figures are the hourly rate times 2,080 hours, BLS's full-time year. Overtime is inside the survey's earnings but not separated out.
Pay by metro area in Connecticut
Hartford-West Hartford-East Hartford, CT employs the most HVAC technicians of the 5 metro areas based in Connecticut that BLS publishes, 1,320, at a median $76,180 a year. The best-paid is Bridgeport-Stamford-Danbury, CT at $77,490.
| Metro | Employed | Median annual | 10th pct | 90th pct |
|---|---|---|---|---|
| Hartford-West Hartford-East Hartford, CT | 1,320 | $76,180 | $46,190 | $100,430 |
| Bridgeport-Stamford-Danbury, CT | 1,050 | $77,490 | $45,230 | $100,360 |
| New Haven, CT | 550 | $76,880 | $43,200 | $101,930 |
| Waterbury-Shelton, CT | 390 | $72,710 | $44,850 | $94,390 |
| Norwich-New London-Willimantic, CT | 250 | $74,990 | $45,840 | $94,130 |
Metropolitan statistical areas as BLS publishes them in the same May 2025 estimates. A metro that crosses a state line is listed only under its primary state, so part of a neighboring state's metro can sit outside this table. Areas outside any metro are not shown.
Connecticut against its neighbors on the pay ladder
| # | State | Median annual | Employed |
|---|---|---|---|
| 2 | Alaska | $77,430 | 610 |
| 3 | Illinois | $77,410 | 9,740 |
| 4 | Massachusetts | $77,300 | 8,200 |
| 5 | Connecticut | $76,610 | 3,800 |
| 6 | Minnesota | $76,350 | 4,200 |
| 7 | Washington | $75,660 | 7,370 |
| 8 | North Dakota | $74,490 | 970 |
The complete ranking is on the HVAC technicians page.
Against the national figure
| Figure | Connecticut | United States |
|---|---|---|
| Median annual | $76,610 | $61,010 |
| Median hourly | $36.83 | $29.33 |
| 10th percentile, annual | $45,280 | $40,050 |
| 90th percentile, annual | $100,160 | $95,210 |
| Employed | 3,800 | 409,670 |
Apprenticeships in Connecticut
U.S. Department of Labor records list 11 registered apprentices active in Connecticut in fiscal year 2024 (October 2023 to September 2024) under the occupation titles DOL maps to heating, air conditioning, and refrigeration mechanics and installers (SOC 49-9021). The file's fiscal 2024 records largely stop after February 2024. In fiscal 2023, the latest year the file holds in full, 10 apprentices started; 4 have a starting wage DOL counts, fewer than the 50 a median needs here. Of those who completed that year, 2 have an exit wage DOL counts, fewer than the 50 a median needs.
Find a registered program: DOL's Apprenticeship Finder → · Every state's count and wages for this trade →
Which wages DOL counts, which titles count and how the state is assigned are on the data page.
Other trades in Connecticut
Electricians ($77,540) · Plumbers and pipefitters ($77,280) · Welders ($64,880) · Truck drivers (CDL) ($60,490) · Lineworkers (power-line installers) ($126,850) · Ironworkers ($62,400) · Sheet metal workers ($78,750) · Carpenters ($64,060) · Brickmasons and blockmasons ($67,960) · Auto service technicians ($60,220) · Diesel mechanics ($67,300) · Heavy equipment operators ($78,750) · Machinists ($62,130)
See all 14 ranked by pay in Connecticut.
The pay and employment figures on this page are the May 2025 BLS estimates, apart from the apprenticeship figures, which are DOL's; the licensing detail is read from the pages listed in the licensing section, each with the date it was read. See how the numbers are built.