What does a gas fitter do for your company, and what level do you need?
A gas fitter is the hire who turns fuel-gas work into a revenue line: running and repairing gas piping, and connecting the appliances and equipment at the end of it.
In the federal statistics, gas fitters are not their own occupation.
BLS describes plumbers as installing and repairing water, gas and other piping systems in homes, businesses and factories, including fixtures and appliances such as dishwashers and water heaters, and pipefitters and steamfitters as working on pipes that may carry chemicals, acids and gases — and O*NET's sample job titles for the combined occupation, Plumbers, Pipefitters, and Steamfitters (SOC 47-2152), include Pipe Welder, Pipefitter and Plumber, but no "gas fitter".
Your hire therefore comes out of the plumbing and pipe-trade labor pool, and the credential the work needs in your state is the next section's question.
One fork changes who you need before anything else: in-building gas work versus utility-side work.
Federal pipeline rules (49 CFR Part 192, Subpart N) require pipeline operators to qualify the individuals who perform covered tasks on a pipeline facility, and a person who is not qualified may perform a covered task only when directed and observed by a qualified individual.
If your company bids utility-side work, ask candidates which covered tasks they are qualified for before you scope the bid.
Fuel-gas work is code work, and the code is a screening question.
NFPA 54 (ANSI Z223.1), the National Fuel Gas Code, sets minimum safety requirements for the design and installation of fuel gas piping systems in homes and other buildings — NFPA lists 2027 as the current edition, and the edition a state enforces may be older.
The code is not the same everywhere: Louisiana's Natural Gas Fitter exam, for one, is an 80-question exam on the 2021 International Fuel Gas Code plus a 30-minute practical.
Ask candidates which code they have been installing to and which edition their last jurisdiction enforced.
Hire by level, not by title.
BLS says most plumbers, pipefitters and steamfitters learn the trade through a 4- or 5-year apprenticeship with about 2,000 hours of paid on-the-job training a year plus technical instruction, and UA registered programs include 2,000 hours of paid on-the-job training per year plus 216 hours of related classroom instruction.
Where a state licenses gas fitting, its own apprentice-to-master ladder is the level system you verify against — the tiers and the states that run them are below.
BLS counted 465,840 wage-and-salary plumbers, pipefitters and steamfitters nationally in May 2025, so the pool is real — and most of it already works for a shop like yours: building equipment contractors, a category that also includes electrical contractors, employ the most of them at 340,140.
Decide before you advertise what the hire does on day one — run and document a pressure test to your code, hang and connect appliance piping, keep the test-and-inspect paperwork your shop runs — and what you will train on your own pricing and ticket flow.
The worker-side description of the job lives in our guide to what a gas fitter does, and you can see how candidates shop for the role on the gas fitter job board.
Looking to hire? Post your gas fitter role on HVACHires and reach techs who already work in the trade.
Post a Gas Fitter Job →What licence or certification must a gas fitter hold?
Our research found no national gas fitter licence: the standalone credentials it confirmed are state-issued.
Those credentials separate from the plumber licence and exist in Alabama, Alaska, Arkansas, DC, Louisiana, Maine, Maryland, Massachusetts, New Hampshire, New Mexico, North Carolina, Utah, Vermont and Virginia, and Texas regulates LP-gas (propane) through the Railroad Commission.
Alabama's Plumbers and Gas Fitters Examining Board licenses both trades statewide at apprentice, journeyman and master levels, and Massachusetts runs gas fitter licences at all three levels through its Board of State Examiners of Plumbers and Gas Fitters, plus LP installer licences.
The entry requirements are concrete where the licence exists.
Alaska's Plumber Gas certificate of fitness covers fuel and gas piping within property lines and requires 4,000 hours in the trade, at least 2,000 of them in fuel gas piping, while holding a trainee certificate.
Louisiana's Natural Gas Fitter licence needs 3,000 hours of gas-fitting work (4,000 if not indentured) plus that 80-question code exam and a 30-minute practical.
Maryland licenses separate Natural Gas Fitters, and its Journey Natural Gas Fitter licence requires 3,750 hours over at least 2 years as an apprentice gas fitter; the state also issues a Propane Gas Fitter certification built on NPGA Distribution Systems Operations training or an equivalent.
North Carolina issues Fuel Piping licences — contractor (1 year / 2,000 hours of experience) and Technician Class I/II (9 months / 1,500 hours) — and fuel piping privileges are already included in its Plumbing and Heating Group 1, 2 and 3 licences.
Credentials are also scoped by task, which matters when you write the job description.
Maine's Propane and Natural Gas Technician licence carries named authorities — delivery, plant operator, tank setter and outside piping, appliance connection and service up to 500,000 BTU, large equipment over 500,000 BTU — on a two-year term, and its helpers need no exam but must be directly supervised on site.
New Hampshire's fuel gas fitter law creates five specialties plus a trainee: hearth system installation and service, domestic appliance, fuel gas installation, fuel gas service, and fuel gas piping.
Vermont requires everyone who inspects, installs or services propane or natural gas systems to hold a Division of Fire Safety gas certification — Natural Gas Installer, LP Gas Installer, or both.
Virginia licenses gas fitters as separate tradesman designations (journeyman/master gas fitter, LP gas fitter, natural gas fitter provider), and New Mexico's JG gas fitter certificate works under an MM-2 (natural gas fitting) or MM-98 licence; the MM-2 covers natural gas piping, warm-air heating and gas appliances, but not LP gas systems.
Oklahoma lists natural gas piping among its mechanical licence categories.
If you run HVAC techs on gas-fired equipment, read this section twice: in New Hampshire, Utah, Vermont, Maine and Massachusetts, HVAC techs who work on gas-fired equipment need a separate state gas credential, and in Utah the requirement covers gas piping, combustion-air vents, exhaust venting and altitude derating of gas appliances even for HVAC workers — a current Utah journeyman or residential journeyman plumber licence counts as documentation of exemption.
In New York City, gas piping for HVAC equipment is plumbing work under a Licensed Master Plumber, and workers doing gas work need a DOB Gas Work Qualification — the full qualification routes run through passing a DOB gas work exam and being a registered journeyman plumber, completing a NYS registered training program plus a year of NYC experience, or five years under a Master Plumber (one of them in NYC); the limited qualification takes six months under an LMP plus a 16-hour DOB-approved gas course, or enrolment in a NYS DOL-approved plumbing apprenticeship.
LP-gas is its own split: separate propane credentials or regulators were found in Texas (Railroad Commission), Arkansas (LP Gas Board), Alabama (LP Gas Board), Maryland, Massachusetts, Vermont, Maine and Virginia.
Texas is the sharpest edge: LP-gas work is regulated by the Railroad Commission, not TDLR or TSBPE, each individual must pass an RRC exam for the activity they perform and must work for an RRC-licensed company.
RRC alternative-fuel certifications expire every May 31 and must be renewed annually; most require a first-year training course and CE every four years.
Master or journeyman plumbers and Class A or B ACR contractors may register with the RRC for an LP-gas exemption — but the exemption covers only the named individual, and the holder's employees cannot work under it.
Your verification routine is short.
Ask every candidate for licence and certification numbers with the issuing state or city, then check each one with the authority that issued it and match the tier — and the named authorities — to the work you need done unsupervised.
Our walkthrough of how to verify plumbing license records covers the lookup step for plumbing licences; for a gas credential, confirm the equivalent step with the board that issues it.
Gas-fitter licensing is state- and city-specific, and it changes.
The credentials named above are the ones our research confirmed, not a complete map — for the other states we did not confirm how the work is covered.
Before you post the job or extend an offer, confirm the current requirements with your state licensing board, or with the city or county that issues licences where licensing is local.
Where do you find gas fitter candidates?
Because the hire comes out of the pipe trades, the sourcing channels are the pipe trades' channels.
The United Association says it represents approximately 409,000 plumbers, pipefitters, sprinkler fitters, HVACR service technicians, welders and related trades in North America, and its trades list runs from plumbers, pipefitters and steamfitters to HVACR service technicians and welders.
Its local apprenticeships are registered with the U.S. Department of Labor and include 2,000 hours of paid on-the-job training per year plus 216 hours of related classroom instruction.
On the merit-shop side, Associated Builders and Contractors runs 67 chapters with more than 450 registered craft-training programs, and PHCC state chapters also operate registered programs — channels to hire apprentices out of, or to enroll the helpers you already have.
BLS points apprenticeship seekers to state employment services, state apprenticeship agencies, local contractors, union-management apprenticeship committees and apprenticeship.gov, which makes the registered programs findable from the other side of the desk.
If you can host one, the Defense Department's SkillBridge program lets employers become training providers and host service members in their last 180 days of service.
Fish where the trade already is.
The states with the most plumber, pipefitter and steamfitter jobs in May 2025 were California (47,660), Texas (44,090), Florida (29,260), New York (23,210) and Illinois (16,750), and the metro areas with the most jobs were New York–Newark–Jersey City (21,040), Los Angeles–Long Beach–Anaheim (15,690), Chicago–Naperville–Elgin (12,750), Dallas–Fort Worth–Arlington (11,980) and Houston–Pasadena–The Woodlands (10,980).
Referrals from your crew can be a fast channel, but all-referral recruiting has a legal edge: 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.
Mix channels, and keep the ads clean — job ads may not signal a preference for or against applicants by race, sex, age 40+, disability or the other protected classes.
The channel playbook is shared with the plumbing side — our guide to how to find plumbers to hire covers it in depth — and our hub for hiring HVAC and plumbing techs collects the employer guides.
How much should you pay a gas fitter, and on what pay plan?
Start with the caveat every "gas fitter salary" number carries: BLS publishes no gas-fitter-only wage.
Its OEWS program reports one combined occupation, Plumbers, Pipefitters, and Steamfitters (SOC 47-2152) — an occupation whose example titles include Gas Plumber and Industrial Gas Fitter — so every federal figure below is the trade band, not a gas-fitter-specific number.
Within that SOC, the median wage was $63,800 a year ($30.67 an hour) in May 2025, and the middle half of the occupation earned between $50,190 (25th percentile) and $85,110 (75th percentile).
Know what those numbers measure.
OEWS counts wage-and-salary workers only and excludes the self-employed; it excludes overtime pay, shift differentials and non-production bonuses such as sign-on bonuses, while including commissions and production bonuses.
A fitter who works heavy overtime can out-earn the printed figures — BLS does not publish by how much.
If you are hiring at helper or apprentice level, budget from the trade's own helper series: the median wage for Helpers–Pipelayers, Plumbers, Pipefitters, and Steamfitters (SOC 47-3015) was $20.36 an hour, or $42,360 a year, in May 2025.
BLS publishes no "starting pay" statistic — the percentiles and the helper series are the closest proxies it has, and there is no apprentice-only OEWS wage either.
Travel terms belong in the offer, not in folklore.
Our research found no BLS or DOL figure for what contractors typically pay in per diem, and union per diem is set in each local's agreement — so write your own per-diem, lodging and mileage terms into the offer letter.
On the pay plan itself: hourly is the simplest to run compliantly, and if you run a flat-rate (per-job) or commission plan instead, the FLSA math does not change with the label.
A flat-rate tech is still owed overtime computed on total job pay divided by hours actually worked.
Commissions count in the overtime regular rate, and a spiff schedule you announce in advance is a promised, non-discretionary bonus no matter what you call it.
Bonuses and commissions paid monthly or quarterly must be apportioned back over the weeks they were earned, with extra overtime owed for any week that had overtime hours.
The overtime exemption that can fit commission-heavy plans, section 7(i), is narrow: it applies only in a retail or service establishment, when the regular rate exceeds 1.5 times the minimum wage and more than half of the employee's pay is commissions — and whether a shop like yours qualifies is decided case by case, so do not assume it covers your fitters.
For the full comparison, our HVAC technician pay plan guide breaks down hourly, flat-rate, commission and hybrid structures.
You are competing in a growing trade: BLS projects employment in the SOC to change 6.8% from 2025 to 2035, with about 42,000 openings a year on average — growth BLS calls much faster than average.
State-by-state figures sit on our gas fitter salary page; anchor your offer to your own metro before a candidate shows you a competitor's.
How do you screen and interview a gas fitter?
Write the job description before you advertise.
Under the ADA, a written description prepared before advertising or interviewing is evidence of which functions are essential — and for a gas fitter, that list doubles as your screening rubric: the piping and appliance work the hire runs unsupervised, the credentials the state requires for it, the test-and-document duties, and the physical demands of the work.
The interview rules cut both ways.
Before an offer you may ask about licences, certifications, skills and work history, and you may ask candidates to describe or demonstrate how they would do a task.
You may state physical demands and ask whether the candidate can meet them.
You may not ask about past job injuries or workers' compensation history — "ever hurt your back on the job?" is off-limits before an offer.
Then make them narrate real work.
Have the candidate walk through one recent gas piping job start to finish: how they sized and supported the run, what code and edition they installed to, what test they put the piping under and how it was documented, what — if anything — the inspector flagged, and what the fix was.
The code frame gives you a concrete anchor: under the 2024 International Fuel Gas Code, gas piping test pressure must be at least 1-1/2 times the proposed maximum working pressure and not less than 3 psig — and local amendments and utility rules can be stricter.
A working gas fitter tells you what their jurisdiction required on the last job without stalling — where a fuel gas code like the IFGC applies, that pressure test is a code requirement, not a shop extra.
Verify the credential before the interview, not after the offer: licence and certification numbers, the issuing board, and a check against the issuing board's records, with the named authorities compared against the job description — a Maine technician whose licence covers appliance service to 500,000 BTU is not yet your large-equipment hire.
Our guide to verify plumbing license records walks the lookup step.
If a screening company runs the background check, the FCRA sequence applies: a stand-alone written disclosure before the report is ordered, a copy of the report and the "Summary of Your Rights Under the FCRA" before any adverse decision, and an adverse-action notice after.
Keep the screen targeted — EEOC guidance weighs the nature of the offense, the time elapsed and the nature of the job, with an individualized assessment.
And if a record makes you hesitate on someone you want, the DOL's Federal Bonding Program issues free $5,000 fidelity bonds covering the first six months of an at-risk hire's employment.
What are the red flags when hiring a gas fitter?
Most of these are checkable in an afternoon, which is the point — a red flag you can verify is a decision, not a vibe.
- Credential paperwork does not clear. A licence number the issuing authority does not recognize, a name that does not match, a certification that expired — in Texas, RRC alternative-fuel certifications lapse every May 31 unless renewed — or a claimed tier that does not exist in that state. Each of these ends the interview until it is explained.
- Working under someone else's registration. The Texas RRC LP-gas exemption is the cautionary example: it covers only the named individual, and the holder's employees cannot work under it. A candidate whose plan is "I ride on the boss's ticket" is describing work the exemption does not cover.
- Vague about what their credential lets them do. A fitter who cannot say which tasks they may perform unsupervised — natural gas versus propane, in-building piping versus utility-side covered tasks, appliance service versus large equipment — has either never worked inside a regulated scope or has worked around one.
- Pressure to be paid as a 1099 subcontractor for work that looks like employment. Under the FLSA, status turns on the economic realities of the relationship, not the label, and true independent contractors get no minimum-wage or overtime protection. Misclassification exposure follows the work arrangement, not the paperwork both parties signed.
- Dismissive of tests, permits and inspections. "We usually skip the test" where the code or the inspector requires one becomes your liability — and your warranty cost — the day the hire signs off under your company.
- Cannot walk through a recent job. Sizing and support choices, the code edition, the test pressure, what failed inspection, what the rework was — a working gas fitter narrates these without notes; a résumé-only candidate stalls.
How do you onboard a gas fitter in the first 90 days?
We have no industry-standard ramp-up to cite for a new gas fitter — the schedule is yours to set, and what follows is an example structure, not a benchmark.
One payroll rule comes first: ride-along and training time is paid work time.
The conditions for unpaid training are narrow — outside regular hours, truly voluntary, not directly job-related, no productive work — and a new hire's ride-along with your senior fitter fails them.
A workable shape: the first stretch paired with your senior fitter or journeyperson on layout, code and documentation standards; then supervised connections and pressure tests, with sign-off on the paperwork; then solo work, once you have watched the hire run a full test-and-inspect cycle to your standard.
Do the credential paperwork in week one, not after the first ticket: confirm each hire's licence or certification is current and matches the authorities you hired for, register anyone who needs registering with the state or city, and map supervision before the first job — Maine's gas technician helpers, for example, need no exam but must be directly supervised on site, and Utah requires the Certified Natural Gas Technician certification for gas piping and venting work even when the worker is your HVAC tech.
If you pay a senior fitter to mentor the new hire, mind the overtime math: a mentor bonus or per-trainee stipend promised in advance is a non-discretionary bonus, and it belongs in the mentor's overtime regular rate.
If you run tech levels, write down the criteria for each step and the evidence for moving someone up.
Pay differences tied to documented seniority, merit or production are defensible under the Equal Pay Act; undocumented ones are how equal-pay claims start.
The cross-trade basics — paperwork, truck and tooling, ticket flow, check-in rhythm — have their own checklist, and our guide to onboarding new technicians owns it.
By the end of the first quarter, hold the same three artefacts for every gas fitter you hire: current credentials on file with the authorities you hired for, tickets that show solo work at the promised level, and a documented level review.
How do you keep a gas fitter once hired?
A retention lever specific to this trade is the credential ladder itself — the rungs are named and checkable.
Tie pay progression explicitly to them: licence tiers, named authorities, the specialty credentials your state issues.
Funding exam fees, course hours and renewal CE is cheap next to a vacancy in a credentialed seat — and in the states that license the trade, the ladder is measured in thousands of documented hours — Alaska's Plumber Gas certificate takes 4,000, Maryland's Journey Natural Gas Fitter licence 3,750 — so a fitter who can see the next rung paid for has a reason to run it with you rather than for a competitor.
For the pay conversation, budget from a real number: BLS's Employment Cost Index for private industry shows wages and salaries for construction, extraction, farming, fishing and forestry occupations rose 3.9% over the 12 months ended June 2026, and for installation, maintenance and repair occupations 3.7%.
Label it what it is — wage growth for the occupation group, not a promised individual raise — and use it to keep your rates from drifting under market between reviews.
Remember what your fitters see when they look around: the occupation is projected to grow 6.8% through 2035 with about 42,000 openings a year on average, and BLS calls that much faster than average.
Good fitters get recruited.
If you want to be the shop that keeps them: predictable hours, test equipment and tooling that work, a documented level path, and a credential ladder that pays.
Our guide to how to keep HVAC and plumbing techs from leaving covers the rest of the playbook.
This page is employer career and business information, not legal advice. Confirm licensing and registration requirements with the state board — or the city or county — that issues them, and check pay-plan, classification and screening questions with an employment attorney before you roll them out.