HVAC apprentices earn while they train, and the pay is built to rise: registered apprenticeship programs must pay a progressively increasing wage schedule tied to the skill you acquire, starting at no less than the federal minimum wage where one applies.
BLS publishes no national apprentice wage, so the honest numbers come from the closest published data plus the wage schedule in your program's standards.
Here is what apprentices make, how the raises step up, and how to judge an offer.
Typical HVAC apprentice pay
Start with the honest caveat: BLS publishes no apprentice wage figure and no starting-pay statistic.
Its single HVAC series — heating, air-conditioning and refrigeration mechanics and installers (SOC 49-9021) — reflects all workers in the occupation, not only new hires, so it cannot price an apprentice rung.
Where BLS does spell the pattern out, it is for the pipe trades: apprentices earn less than fully trained plumbers, pipefitters and steamfitters, and their pay increases as they learn to do more.
The closest published proxies are the helper categories, and they need the same label: proxies, not apprentice wages.
Helpers across installation, maintenance and repair trades (SOC 49-9098 — not HVAC-specific) earned a median of $19.05 an hour, or $39,630 a year, in May 2025; within plumbing, heating and air-conditioning contractors — the industry you would actually work in — that group counted 25,180 jobs at a $39,550 annual median.
The pipe trades' own helper code (SOC 47-3015, helpers to plumbers, pipefitters and steamfitters) earned a median of $20.36 an hour, or $42,360 a year, nationally.
For the destination, use the occupation's own series: HVAC mechanics and installers (SOC 49-9021) earned a median of $29.33 an hour, or $61,010 a year, in May 2025.
That is the trained occupation apprentices step toward — not apprentice pay.
The full percentile tables, national and by state, live on our HVAC technician salary page, and our HVAC apprentice salary page collects the apprentice-relevant numbers in one place.
How pay steps up each year
Apprentice raises are not negotiated one at a time — they are written down before you start.
The federal rule for registered apprenticeship programs (29 CFR 29.5) requires a progressively increasing schedule of wages consistent with the skill acquired, with an entry wage not below the federal minimum wage where applicable — or higher where another law or a collective bargaining agreement requires it.
If you are new to the structure itself, our HVAC apprenticeship guide explains how registered programs work.
What the federal rule does not do is set the percentages.
The familiar ladders — start at a share of the journeyman rate, step up each period — are conventions of each program's registered standards or its collective bargaining agreement, not Department of Labor rules; the regulation itself contains no percentage of the journeyworker rate.
Timing is a standards question too.
Programs may be time-based, competency-based, or a hybrid of the two, so one apprentice steps up on the calendar while another steps on demonstrated skill.
The schedule — each percentage and what triggers it — lives in the program's standards, which is why the only reliable move is to ask the sponsor for the wage schedule before you sign.
And if you go looking for a national scale first: our research verified no generic step-percentage ladder to quote.
No standard UA or SMART schedule exists, because each local sets its own.
One place the federal government does tie apprentice pay to your registration: Davis-Bacon prevailing-wage work — federally funded or assisted construction contracts over $2,000, where workers must receive at least locally prevailing wages and fringe benefits.
There, an apprentice may be paid below the journeyworker wage-determination rate only if individually registered in a program registered with the Department of Labor or a recognized state apprenticeship agency.
The registered program's percentage schedule supplies the apprentice rate, the apprentice-to-journeyworker ratio on the job may not exceed the program's ratio, and anyone listed at an apprentice rate who is not registered must be paid the full wage-determination rate for the work done.
On contracts over $100,000, the Contract Work Hours and Safety Standards Act adds time-and-a-half for hours over 40 in a workweek.
What does the ladder lead to?
See HVAC pay scale by level for how the rungs above apprenticeship are priced — and why the top rungs have no single national number either.
Your raise schedule lives in the program standard
Union vs non-union apprentice pay
Both kinds of program answer to the same federal floor — a progressively increasing wage schedule and an entry wage at or above the applicable minimum.
The difference is who writes the schedule.
On the union side, apprenticeship is administered by a joint apprenticeship and training committee (JATC) under a collective bargaining agreement, and the pay steps come from that negotiated agreement.
The United Association, whose trades include HVACR service technicians, says its registered apprenticeships typically run five years.
On the merit-shop side, contractors and associations train apprentices outside a union agreement.
The Associated Builders and Contractors — founded on the merit shop philosophy and reporting more than 24,000 members — is the merit-shop standard-bearer, and its member contractors run registered programs whose pay schedules answer to the same progressive-wage rule.
Pay steps here are also set program by program, in each sponsor's registered standards.
What you will not find on either side is a verified national number.
No standard union pay scale exists to quote, and the same is true of merit-shop ladders — each local and each sponsor publishes its own.
For a sense of scale: BLS does not publish a union membership rate for HVAC technicians; the closest measured groups in 2025 were construction and extraction occupations at 16.4% union members, and installation, maintenance and repair occupations at 12.5%.
Treat any article quoting a universal union apprenticeship pay scale, or a fixed union premium, as unsourced.
Benefits during the apprenticeship
The headline benefit is the paid training itself.
On-the-job learning is paid from the first day — an apprenticeable occupation has to involve at least 2,000 hours of it — and structured classroom instruction runs alongside: the Department of Labor recommends at least 144 hours of related technical instruction per year of apprenticeship.
That 144 is a recommendation, not a federal requirement, though your program or your state may mandate it.
Everything beyond the wage is whatever the sponsor's standards or the collective bargaining agreement provides, so ask for the written benefits summary rather than assuming.
One federally anchored case: on Davis-Bacon work, the required package includes fringe benefits on top of the prevailing wage.
Veterans have a documented layer on top: the Post-9/11 GI Bill pays a housing allowance alongside wages for full-time apprenticeship training, and it steps down as the program runs — 100% of the E-5-with-dependents BAH for months 1 through 6, 80% for months 7 through 12, 60% for months 13 through 18, 40% for months 19 through 24, and 20% after 24 months.
How to evaluate an apprentice offer
The wage schedule is the document that turns everything above into your actual paycheck, so make it the center of the evaluation.
Before you accept any apprentice offer:
- Get the wage schedule in writing — every step and what triggers it, from the program's registered standards, not a recruiter's paraphrase.
- Ask which journeyman rate the percentages reference — a step is only meaningful against the local journeyworker scale it climbs toward.
- Confirm the program is registered with the Department of Labor's Office of Apprenticeship or a recognized state apprenticeship agency — registration is what makes the apprentice rate lawful on Davis-Bacon jobs and earns your completion certificate.
- Check the probationary period — federally capped at the shorter of 25% of the program length or 1 year, and it counts toward completion.
- Look at the supervision ratio in the standards — a numeric apprentice-to-journeyworker ratio is required, and thin supervision slows the skill growth your raises depend on.
- Know what you finish with — a completion certificate issued by the registration agency. It documents your training; it is not a trade licence, and licensing is a separate state or local layer — confirm requirements with your state licensing board.
Career information, not legal or pay advice. Wage schedules, ratios and benefits come from each program's standards and from law — confirm current rules with your program sponsor, the U.S. Department of Labor or your state apprenticeship agency.