Alberta's gasfitter apprenticeship: the Class A vs Class B split at 400,000 BTU, the 3-period and 2-period AIT programs, compulsory certification, wages by period, and the Red Seal option.
Applies in: Alberta
Alberta runs gasfitting as two apprenticeships under one trade family, split by a single number: 400,000 BTU. Get hired by a mechanical, HVAC, or gas service contractor willing to sponsor you, register the apprenticeship education agreement through AIT's MyTradesecrets service ($150), then work paid on-the-job hours — 1,560 per period — interleaved with 8-week classroom blocks and a theory exam each period. Class A takes 3 periods (Diploma, unlimited equipment size, industrial scope); Class B takes 2 periods (Certificate, equipment up to 400,000 BTU, residential and light commercial). In the final period you may write the interprovincial Red Seal exam. You finish as a certified journeyperson in a compulsory trade — the gas ticket Alberta's mechanical contractors, institutions, and plants all require.
This is the decision that shapes everything, and Alberta's trade profiles draw it in plain numbers:
Both classes are compulsory-certification trades, both run the same per-period structure, and both offer the Red Seal exam in the final period. The choice is really about the work you want: Class A opens industrial plants and large commercial; Class B is the faster route into the residential and light-commercial service market — and it is the credential SAIT refrigeration graduates earn on their way out, which is why institutions routinely post for it alongside the refrigeration ticket.
AIT's published minimum for both classes: English 20-2, Math 20-3, and Science 10 — or a pass on all GED/CAEC tests, or a pass on the AIT entrance exam. This is Alberta's standard mechanical-trade bar: lower than refrigeration's physics requirement, higher than nothing. If you are still in high school, Alberta's Registered Apprenticeship Program (RAP) lets you start banking apprenticeship hours before graduation. You must have a sponsoring employer before you can register — the academic bar gets you eligible, the job gets you started.
This is the step that starts the clock. Your hours only count once an apprenticeship education agreement ties you to a sponsoring employer:
The sponsor hunt is a job search in every sense: our job hunting guide walks through Job Bank, Canadian resume conventions, and the NOC codes (72302 for gasfitters) you will use on applications.
The official structure from Alberta's trade profiles is identical per period for both classes: 1,560 hours of on-the-job work experience, 8 weeks of classroom instruction, and a theory exam, roughly a year per period. What differs is the count and the credential:
The on-the-job side runs the full scope of your class: measuring and cutting pipe, joining and pressure-testing gas lines, installing and venting appliances, setting regulators and controls, leak-testing, and commissioning. The school blocks are delivered at nine institutions — Keyano, Lakeland, Lethbridge Polytechnic, Medicine Hat College, NAIT, Northwestern Polytechnic, Portage College, Red Deer Polytechnic, and SAIT — and the Alberta Pipe Trades College (Plumbers and Pipefitters UA Local 488) runs AIT's recognized program for both classes.
School is the cheap part of this trade. You earn a wage between blocks, and the funding picture is straightforward:
With the hours, school blocks, and period theory exams done, both classes offer the interprovincial (Red Seal) exam in the final period. Passing earns the Alberta journeyperson certificate for your class with the Red Seal endorsement: the national stamp that lets you work the trade anywhere in Canada without re-certifying. The credential hierarchy matters: a Class A journeyperson covers everything; a Class B journeyperson owns the residential and light-commercial market outright — and because the Class B program is only two periods with 90/95% wage floors, it is one of the fastest compulsory-trade payoffs in the province.
Already working in the trade? The Trades Qualifier route bypasses the apprenticeship: 54 months and 7,020 hours of verifiable Class A experience (including at least 1,000 hours on appliances over 400,000 BTU) or 36 months and 4,680 hours for Class B, a passed theory exam, and an Employer Declaration Letter from your employer.
Our trade schools directory lists approved gas and mechanical training programs by province — Alberta (7 programs), BC, Ontario — public colleges, union training centres, and pre-apprenticeship programs, every one verified against the provincial apprenticeship authority.
| AIT apprenticeship application fee | $150 |
|---|---|
| Classroom tuition per 8-week period | College apprentice rates (SAIT/NAIT publish yearly; budget ~$1,600/period as with sibling trades) |
| Canada Apprentice Loan (per period) | up to $4,000, interest-free |
2026-27 figures; check the source before you budget.
One line: 400,000 BTU. Class A certifies you to size, install, test, adjust, and service natural gas and propane equipment of any size — Alberta's trade profile states Class A certification is required to work on appliances exceeding 400,000 British Thermal Units, which covers industrial boilers and large commercial systems. Class B covers equipment not exceeding 400,000 BTU: residential furnaces, rooftop units, restaurant and institutional equipment. Class A is a 3-period program ending in a Diploma; Class B is a 2-period program ending in a Certificate. Both are compulsory-certification trades, and both offer the Red Seal exam in the final period.
About three years for Class A, about two for Class B. Each period is 1,560 hours of on-the-job work experience plus 8 weeks of classroom instruction and a theory exam, and each period is designed to take roughly a year. AIT allows up to 18 months between each requirement, so a layoff or a slow season does not automatically reset your clock — but the hours, school, and exam for each period must all be complete before you advance.
AIT's published minimum is English 20-2, Math 20-3, and Science 10 — or a pass on all GED/CAEC tests, or a pass on the AIT entrance exam. This is the same academic bar Alberta sets for most mechanical trades. You also need a sponsoring employer before you can register: your hours only count once an apprenticeship education agreement ties you to that employer.
Yes — both classes. Under Alberta's Skilled Trades and Apprenticeship Education Act, gasfitting is a designated trade: restricted activities may only be performed by a registered apprentice, a certified journeyperson, or someone holding a recognized trade certificate. Job Bank's national profile (NOC 72302) also lists Alberta among the provinces where trade certification is compulsory for gasfitters. Working on gas systems outside that structure is not permitted.
The minimums are set in regulation (AEITP Regulation) and tied to the lowest-paid journeyperson of the same class at your company. Class A: 50% in period 1, 60% in period 2, 80% in period 3. Class B: 90% in period 1, 95% in period 2. The Class B percentages are the highest in Alberta's trade system — the program is short and the journeyperson rate is a residential-scale wage, so employers are expected to pay near-journeyman money from early on. These are floors, not targets; negotiated rates and union shops (Alberta Pipe Trades College Local 488 runs a recognized program) pay more.
Yes. Both the Class A and Class B trade profiles list the Red Seal exam as an option in the final period of the apprenticeship. Passing earns the Alberta journeyperson certificate with the Red Seal endorsement — the national stamp that lets you work the trade anywhere in Canada without re-certifying. Our Red Seal guide explains the endorsement mechanics and the trade-qualifier route for experienced workers.
You may be able to challenge through the Trades Qualifier program instead of starting as a period-1 apprentice. For Class A you need 54 months and 7,020 hours of verifiable Class A work experience — including at least 1,000 hours working on appliances over 400,000 BTU — plus a passed theory exam and an Employer Declaration Letter. For Class B: 36 months and 4,680 hours, the theory exam, and the declaration letter. Related trade certificates can earn credit toward these requirements.
The 8-week blocks are offered at nine institutions: Keyano College, Lakeland College, Lethbridge Polytechnic, Medicine Hat College, NAIT, Northwestern Polytechnic, Portage College, Red Deer Polytechnic, and SAIT. The Alberta Pipe Trades College (Plumbers and Pipefitters United Association Local 488) is AIT's recognized program provider for both classes — the union training route for the trade.
Fees, wages, and program details move — verify current figures with AIT and the training institution before you enrol.