How do you hire an HVAC sheet metal worker? Sourcing, pay, screening and red flags

Your sheet metal worker fabricates, assembles, installs and repairs the metal that moves air — O*NET defines the occupation (SOC 47-2211.00) as workers who fabricate, assemble, install and repair sheet metal products and equipment such as ducts, control boxes, drainpipes and furnace casings, and the code includes sheet metal duct installers who install prefabricated duct.

On an HVAC install, that is the duct system your airflow claims, your comfort callbacks and your maintenance agreements are built around.

The full breakdown of the work — HVAC duct versus architectural versus industrial sheet metal, and shop fabrication versus field installation — is a career question, and it lives in our guide to what an HVAC sheet metal worker does.

For the hiring decision, what matters is that those splits are real: a candidate can be strong on the fabrication bench and new to hanging duct in an occupied building, or the reverse.

Decide which side of the split you are hiring for before you write the posting, then check every candidate's references against that side specifically.

Pick the level before you pick the person:

• Registered apprentice — you train them into your standards. The International Training Institute (ITI), jointly sponsored by SMART (the union) and SMACNA (the contractors' association), reports more than 14,000 registered apprentices in the US and Canada, and apprenticeships run four or five years.
• Journeyman-level installer — productive in the field now. Judge them on the installations their references confirm, and on any state or local licence your jurisdiction requires (the next section covers what varies).
• Shop fabricator — output before the truck rolls. If your shop feeds field crews, bench skills on your own machinery are the day-one requirement; field exposure can be trained.

It also helps to know where the occupation actually works.

BLS counted 119,770 wage-and-salary sheet metal workers nationally in May 2025, with Building Equipment Contractors employing the most at 53,690, ahead of fabricated metal product manufacturing at 20,780 and foundation, structure and building exterior contractors at 16,060.

Within plumbing, heating and air-conditioning contractors (NAICS 238220), the count was 51,680.

Two posting-level realities: first, the schedule — in O*NET survey data, 28% of sheet metal workers report a typical week of more than 40 hours and 72% report 40 hours, so state your overtime expectations up front.

Second, scope: if the role is really a helper posting, be honest about it — our guide to what unlicensed helpers can do covers where that line sits, and a mislabeled posting burns the candidate pool you will need next season.

Start with the federal layer, which is narrower than the job title suggests.

The federal certification that can apply here is EPA Section 608 — and it keys to the equipment touched, not the job title.

Under 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.

Match that rule against the scope you are hiring for: it names the work — maintaining, servicing, repairing or disposing of those appliances — not the job title, so check whether your scope includes that appliance work or only duct fabrication and installation, and confirm the line with the EPA if it is close.

Our guide to how to verify EPA 608 certification walks the check.

Above that, worker licensing is a state-and-local question, and the variation is easy to underestimate:

• Massachusetts licenses apprentice, journeyperson and master sheet metal workers — and sheet metal businesses, through a Sheet Metal Business License — via the Board of Examiners of Sheet Metal Workers.
• Iowa issues journeyperson licences by discipline, sheet metal among them; its ladder runs apprentice to journeyperson to master, and there is no separate sheet metal master licence.
• Rhode Island requires journeyperson sheet metal workers to complete an 8,000-hour registered apprenticeship.
• Philadelphia — a city licence, not a state one — requires a Sheet Metal Technician License to install, maintain and service sheet metal used in HVAC systems; applicants must complete a registered sheet metal apprenticeship with at least 8,000 hours of practical experience and 800 hours of related instruction, and the licence renews every three years.

Those four are examples of the variation, not a list of everywhere.

Whether your state — or your city or county, where licensing is local — licenses the worker, your company at the contractor level, or both, is set by the issuing body, and the four examples above already differ in names and tiers.

Confirm the current requirement with your state licensing board, or your city or county where licensing is local, before you write it into a posting — rules change, and a licence line copied from another state's posting is how postings age badly.

Our guide to how to verify a plumbing license walks the board-lookup steps; the issuer-first habit is the same for a sheet metal credential, and what licence my hire needs sorts out the worker-versus-contractor question.

One scope rule worth checking before you hire for the work at all: in Rhode Island, a master mechanical licence lets its holder do sheet metal work only when the AC air-handling equipment is 10 tons or less or the heating equipment is 250,000 BTU or less — larger sheet metal work must be subcontracted to a licensed sheet metal contractor.

That line is Rhode Island's; whether your state draws one — and where — is a question for your state board.

If your crews are licensed under a different trade's licence, check where your state sets that boundary before you staff for bigger duct jobs — the constraint may sit on your licence, not on the hire's.

The pipelines worth calling first:

• SMART/SMACNA apprenticeship. The ITI's registered apprentices train at local training facilities, and the programs combine on-the-job training with classes at little to no tuition. Apprentices in their later years — and the programs' coordinators — are a candidate pool worth calling before they graduate.
• Merit-shop apprenticeship. ABC's 67 chapters run more than 450 registered apprenticeship programs across more than 20 construction crafts, and PHCC state chapters sponsor registered programs — whether your local chapter runs a sheet metal program is a call to make, not an assumption. On published curricula: NCCER's Sheet Metal curriculum is four levels (4th edition, updated 2019).
• Veterans. SkillBridge lets employers become training providers and host service members in their last 180 days of service — a way to develop a fabricator before the vacancy exists.
• The channels BLS points to. BLS's occupational profile for HVACR mechanics and installers — the neighboring trade — directs apprenticeship seekers to state employment services, state apprenticeship agencies, local contractors and union-management apprenticeship committees, and to apprenticeship.gov; the same doors are worth a call from the sheet metal side.

Go where the occupation actually is.

The states with the most sheet metal worker jobs in May 2025 were Texas (9,540), California (8,390), Florida (8,040), New York (6,570) and Indiana (4,580); the metro areas with the most jobs were New York-Newark-Jersey City (6,080), Dallas-Fort Worth-Arlington (2,890), Houston-Pasadena-The Woodlands (2,610), Phoenix-Mesa-Chandler (2,550) and Los Angeles-Long Beach-Anaheim (2,440).

Set your expectations with the pipeline math: BLS projects employment of sheet metal workers to grow 2.5% from 2025 to 2035 — below the 3.5% all-occupation average — with about 9,800 openings a year on average.

For comparison, HVACR mechanics and installers are projected at 10.9% growth over the same window.

You can see what candidates see on the sheet metal worker jobs page, and our cross-role guide to where to find HVAC technicians covers the recruiting motion in depth.

One hiring-law caution on the funnel itself: recruiting mainly by word of mouth through a mostly one-group workforce can itself be discriminatory if it results in almost all hires coming from that group — and in 2025 women were 4.9% of employed sheet metal workers.

Post publicly, source from the training programs above, and measure where your applicants come from.

Our guide to recruiting apprentices covers building that pipeline on purpose.

Sheet metal work comes with its own BLS wage series: BLS counts Sheet Metal Workers as their own occupation (SOC 47-2211), so the benchmark below is a direct measure of the trade rather than a broader-SOC proxy.

All figures are OEWS May 2025, released May 15, 2026:

• Median: $29.71/hour, $61,800/year
• 25th percentile: $22.99/hour ($47,830/year); 75th percentile: $39.24/hour ($81,610/year)
• 10th percentile: $18.57/hour ($38,630/year); 90th percentile: $50.79/hour ($105,650/year)
• Mean: $32.62/hour, $67,850/year

Four cautions when you use them.

First, there is no BLS starting-pay statistic — the closest proxies for an entry-level offer are the 10th and 25th percentiles, and they reflect all workers in the occupation, not only new hires.

Second, OEWS pay includes commissions and production bonuses but excludes overtime pay, shift differentials, nonproduction bonuses (sign-on, holiday) and benefits, so a worker putting in more-than-40-hour weeks — 28% report them in O*NET survey data — can earn more than the measured figure.

Third, price your segment: within plumbing, heating and air-conditioning contractors (NAICS 238220) — 51,680 sheet metal workers — the median was $69,830, the mean $74,720, the 10th percentile $44,420 and the 90th $115,790; that industry cut covers plumbing and HVAC contractors together, so read it as your segment's market, distinct from the national all-industry figures above.

Fourth, the top-paying states by annual median were Washington $98,550, Hawaii $96,350, Alaska $94,600, New Jersey $92,840 and Illinois $86,630 — your state's numbers are on our sheet metal worker salary page.

If you hire through a registered apprenticeship, the wage schedule comes with the program: federal rules require registered programs to pay a progressively increasing wage schedule tied to skill, and the entry wage may not be below the FLSA minimum wage where applicable.

The federal rule sets no percentage steps — those live in each program's standards — so a specific "apprentices start at X percent of journeyman" claim needs that program's own schedule, not a generic figure.

Pay plan is a separate decision from pay level — hourly, flat rate and commission each change what you owe at overtime, and none of them opts a worker out of overtime unless a specific exemption applies.

For flat-rate (job-rate) workers, the regular rate is total job pay divided by hours actually worked, plus an extra half-time for each hour over 40; commissions count in the regular rate too.

The narrow FLSA section 7(i) commission exemption requires a retail or service establishment, a regular rate above 1.5 times the minimum wage and more than half of their pay over a representative period (at least a month) from commissions — and whether an HVAC service company can use it has been decided case by case since DOL withdrew its old list of non-retail businesses in May 2020.

Our guide to the HVAC technician pay plan compares the structures, and overtime for flat-rate and commission techs covers the calculation — price the plan with your bookkeeper and employment attorney before you promise a split.

Screen in a fixed order so every candidate clears the same gates — and so the process itself stays on the right side of the rules:

• 1. Write the job description before you advertise. Under the ADA, "essential functions" are the fundamental duties of the job, not marginal ones, and a written job description prepared before advertising or interviewing is evidence of what is essential — which is what you will be screening against. Our guide to writing job ads for techs covers the posting itself.
• 2. Ask what the law lets you ask — no more. Before a conditional offer you may ask about skills, education, work history and required certifications and licences, and you may ask the candidate to describe or demonstrate how they'd do job tasks. You may state physical requirements — lifting a set weight, climbing ladders — and ask if the applicant can meet them. You may not ask disability-related questions or require medical exams before an offer, and you may not ask about past job injuries or workers' compensation history — "Ever hurt your back on the job?" is off-limits pre-offer, on any trade.
• 3. Test the trade on your own work. Have a field candidate walk a duct run the way they'd actually build it — layout, connections, what they check before they call it sealed, how they record what they did — and have a shop candidate talk through a fitting from stock to finished piece. A strong answer explains the checking, not just the sequence. A paid working interview is the cleanest version; our guide to working interviews covers the setup.
• 4. Verify any licence with the issuing board's own lookup — not with a screenshot the candidate sends. Where the credential is a city licence (Philadelphia's Sheet Metal Technician License, for example), the city's records are the check.
• 5. Verify EPA 608 only if the scope touches the refrigerant circuit — the federal rule applies to anyone who could reasonably be expected to violate the integrity of the circuit while maintaining, servicing, repairing or disposing of appliances containing CFC/HCFC or non-exempt substitute refrigerants. Our walkthrough of verifying EPA 608 certification covers the lookup.
• 6. Screen the references for the side of the trade you're hiring. Ask the previous employers what the candidate actually fabricated or installed — the bench-to-field split from the first section is exactly where a title hides a mismatch.
• 7. Run background checks the structured way. If the check comes from a screening company, FCRA notice and adverse-action steps apply, and EEOC guidance expects a targeted criminal-record screen — the offense, the time elapsed and the nature of the job, plus an individualized assessment. Our guides to background checks and MVR checks cover the mechanics.

None of these is automatically a no — each is a reason to slow down and verify before you offer.

• Credentials that can't be documented at the issuer. A licence you cannot confirm with the board or city that issued it, or a 608 card whose certifying organization the candidate cannot name — EPA does not issue the cards; approved certifying organizations do — is not a credential yet.
• A reference list that never crosses the split you're hiring for. Shop-only references for a field role, or the reverse, isn't disqualifying — but it changes what you're buying and what you must train, and the offer should reflect it.
• Pay arrangements built to skip overtime. A flat-rate or commission pitch with no overtime at all in it: flat-rate pay does not remove FLSA overtime, commissions count in the regular rate, and the commission exemption has narrow tests and case-by-case status for HVAC service companies. Structure the plan with advice — not around the rule.
• Casualness about height work. Sheet metal work had 162.7 days-away cases per 10,000 full-time workers in 2023–2024, and falls to a lower level alone ran at 59.0 per 10,000. A candidate who waves off ladders or lift discipline on this trade is a risk your workers' comp book carries, not just theirs.
• Experience no reference will confirm. Years claimed but previous employers unreachable or vague. Ask for the systems, materials and building types they actually worked on — specifics survive reference checks, titles do not.
• Schedule mismatch discovered late. O*NET survey data finds 28% of workers in the occupation reporting weeks over 40 hours. A candidate who balks when first hearing your install-season schedule will balk again in it — cover the schedule in the interview, not the exit interview.

Week 1 — the compliance file.

Copy the licence you verified into your records, along with the 608 certificate if the role's scope touches the refrigerant circuit, and complete whatever registration your state board or local jurisdiction requires — confirming the requirement with the issuing body rather than assuming.

Keep the job description you screened against in the same file: it is evidence of the role's essential functions.

Weeks 2–4 — pair on your details.

Your sealing standards, your hanger and support habits, your documentation.

If the hire is a registered apprentice, the program's standards govern the arrangement — run your plan past the program coordinator; our guide to apprentice supervision ratios covers how the rules work.

Safety orientation is not a formality on this trade: name the numbers — 162.7 days-away cases per 10,000 full-time workers in 2023–2024, with falls to a lower level alone at 59.0 per 10,000 — and where your own fall and lift policies sit against them.

Our guide to OSHA for HVAC and plumbing contractors covers the employer duties.

Tools — stage them, don't surprise them.

One example of staged tooling: SMART Local 27 in New Jersey requires pre-apprentices to bring a 25-ft tape, work gloves, marker, pen/pencil and notepad on day one; a 16-oz tinner's hammer, 10-inch vise grips, screwdrivers, rivet set, 10-inch adjustable wrench, 3/16-inch drift pin, apron/pouch and toolbox within 30 days; and aviation snips, scratch awl, center punch, 12-inch combination square and 24-inch quick-set dividers within 60 days.

That is one local's agreement, not a national norm — but this local stages it, and you can stage your own toolkit the same way instead of handing over a shopping list in week one.

And if you do require tool purchases, mind the federal line: under 29 CFR 531.35, the FLSA is violated in any workweek where a required tool cost cuts into the minimum wage or overtime owed.

Our guide to the tool allowance policy covers the structures.

Months 2–3 — supervised solo and a real checkpoint.

Move the hire onto work your lead reviews, and make the 90-day review a walkthrough against the job description's essential functions — the ones you wrote before advertising — rather than a vibe check.

Our cross-role guide to onboarding new technicians covers the general playbook this slots into.

Keep the pipeline math in front of you: employment is projected to grow 2.5% through 2035, with about 9,800 openings a year on average — and the ITI's (SMART/SMACNA) apprenticeship pipeline alone trains over four or five years, so it does not refill on a hiring timeline.

Retention is the recruiting plan for this role.

What moves a sheet metal worker to stay:

• A pay path they can see. The BLS spread shows the room: from the $61,800 median to $81,610 at the 75th percentile and $105,650 at the 90th. Whatever plan you run, the worker should be able to see the next step and what earns it — a number they have to guess at is a number they will take somewhere else.
• Depth the company funds. The trade has a real training ladder — NCCER's four-level Sheet Metal curriculum and the ITI's registered apprenticeship programs. Paying for the next level of it is cheaper than re-hiring at the current one.
• A schedule that is honest and predictable. With 28% of the occupation reporting weeks over 40 hours in O*NET survey data, longer weeks are part of this trade; you may not be able to remove them, but rotating them fairly and publishing the rotation costs nothing and is remembered.

Retention has its own playbook — our guide to retaining technicians covers it in depth — and hiring one role well is easier when the rest of the operation is set up for it: our guide to hiring HVAC and plumbing techs covers the cross-role work — job descriptions, pay plans, verification and onboarding that apply to both trades.

This page is employer career and business information, not legal advice. Certification requirements are set by the U.S. EPA; technician and contractor licensing by your state licensing board, or your city or county where licensing is local; pay rules by federal and state wage law. Confirm the requirements that apply to your company with the issuing bodies, and consult an employment attorney on pay-plan and screening questions.