A medical gas plumber installs and maintains the piped systems that deliver oxygen, medical air, nitrous oxide, and vacuum to patient bedsides and operating rooms in hospitals and clinics.
It is a plumbing specialty with its own health-care facilities code (NFPA 99) and its own installer credential (ASSE 6010).
Here is the job, why the brazing is different, and how to get into it.
What is a medical gas plumber?
A medical gas plumber is a plumber or pipefitter who specializes in the piped systems that carry medical gases and medical vacuum through health-care facilities — from the central supply equipment to the outlets at bedsides, operating suites, and dental chairs.
BLS describes plumbers as installing and repairing water, gas, and other piping systems in homes, businesses, and factories; medical gas work is the health-care end of that definition, where the pipe carries what a patient breathes.
The job is mostly construction and renovation in hospitals, clinics, and other medical buildings: hanging tube, brazing joints, setting supply and alarm equipment, and supporting the inspection and verification the systems must pass.
It sits inside the commercial and institutional side of the pipe trades, building on the same licence ladder the rest of the trade uses rather than replacing it.
The specialty is formal.
The ASSE/IAPMO/ANSI Series 6000-2024 medical gas standards define separate credentialed roles for 6010 Installers, 6020 Inspectors, 6030 Verifiers, 6035 Bulk Medical Gas/Cryogenic Fluid Central Supply Verifiers, 6040 Maintenance Personnel, 6060 Designers, and 6070 Design Instructors (new in 2024).
This page is about the installer role; inspector and verifier work is its own track, with its own careers.
If you are starting from zero, the plumber career guide covers the trade as a whole — the license ladder, the full job-title map, and every work setting including this one.
This page stays on the medical gas lane.
Systems med gas installers work on: oxygen, vacuum, medical air, N2O and WAGD
The job's subject matter is the set of piped systems that bring gases and suction to the point of care, all running from central supply equipment to wall outlets in patient-care areas.
Five of them define the lane.
- Oxygen (O2). The headline system: piped oxygen at bedsides, in operating suites, and in emergency departments.
- Medical vacuum. The suction lines clinicians rely on at the bedside and in surgery.
- Medical air. Breathable compressed air, delivered through its own piping — separate from oxygen.
- Nitrous oxide (N2O). The anesthetic gas delivered in dental and surgical settings.
- WAGD (waste anesthesia gas disposal). The system that carries exhaled anesthetic gas out of operating rooms so staff do not breathe it shift after shift.
All of it falls under NFPA 99, the Health Care Facilities Code, and the standards series for the people who install it is aligned to the code: the 2024 ASSE Series 6000 tracks the medical gas requirements of NFPA 99-2024.
Building to that code — not to habits formed on water and drain work — is what separates this lane from general plumbing.
Why med gas brazing is different
Brazing is where the specialty draws its sharpest line, and the state rules say so plainly: they test medical gas brazing as its own skill.
Texas's Medical Gas Piping Installation endorsement exam requires 24 hours of classroom training on NFPA 99, including at least 4 hours of shop work on assembly, purging, and brazing.
Georgia's Statewide Medical Gas Piping Certification requires a 32-hour approved program — built on the ASSE 6000 series and NFPA 99 — with a written exam and a braze test, and holders must braze at least once every 12 months to keep it.
And a Florida plumbing contractor who wants to work on medical gas piping must complete an approved course of at least 6 hours, based on NFPA 99C and brazing, at least once while holding the licence.
Read those requirements together and the difference from general plumbing work is the point: the classroom hours are built on NFPA 99 rather than the general plumbing code, purging and brazing get their own tested shop time, and the skill carries a recency requirement — a braze at least every 12 months in Georgia — instead of being learned once and counted as done.
These requirements sit on top of the plumbing licence; the states add them specifically for medical gas work.
The credential layer is national as well.
The ASSE/IAPMO/ANSI Series 6000-2024 defines 6010 for installers, with 6020 Inspectors and 6030 Verifiers as separate roles in the same series.
Who must hold which role on a given job — and what they check — is set by the code edition and the authority having jurisdiction, so confirm that on the project rather than from a career guide.
Which code edition governs your job? Verify it
How to become a med gas installer (experience + ASSE 6010)
Medical gas is a credential you add to the licence, not a route around it.
Georgia issues its Statewide Medical Gas Piping Certification to licensed master or journeyman plumbers, and Iowa's board-approved certification sits on top of the plumbing licence the same way.
You become a plumber or pipefitter first — the how to become a plumber guide covers that path — then add the medical gas credential and the health-care work history, under the same licence ladder our plumbing license guide explains.
The path looks like this.
Train as a plumber or pipefitter
Med gas installers are pipe tradespeople first. An apprenticeship with a plumbing or mechanical contractor — ideally one that holds hospital or institutional contracts — is where the brazing, blueprint, and code habits form.Get licensed where your state licenses
Installers work under the same individual licence ladder as the rest of the trade — apprentice, journeyman, master — set by your state board, or by your city or county where licensing is local.Add the ASSE 6010 installer credential
The ASSE/IAPMO/ANSI Series 6000-2024 defines 6010 for Medical Gas Systems Installers — the credential layer hospital work is built around. One honest gap: ASSE/IAPMO's public pages do not publish the experience prerequisites for 6010 (the standard text is sold, not posted), so our research cannot confirm them. Confirm current prerequisites, training, and exam arrangements with ASSE International or a certification body such as NITC before you plan around a specific requirement. Budget for renewal too: ASSE certifications must be renewed every three years, and recertifying up to six months early loses no time.Check your state's medical gas layer
States can add a requirement on top of the plumbing licence. Iowa, for example, requires a separate board-approved certification to install or repair medical gas piping, and applicants need a valid NITC (or equivalent) certification. Texas, Georgia, and Florida run their own endorsement, certification, and course requirements — the brazing section above shows what they test. Which one applies to you is a question for your state licensing board — ask before you schedule work.Learn the code you will install to
Medical gas work follows NFPA 99, the Health Care Facilities Code, and the ASSE Series 6000-2024 is aligned with the medical gas requirements of NFPA 99-2024. Which edition governs a given hospital job is its own question — the callout below covers the trap.
Once the credential is in hand, the lane has depth beyond the tools: the same 6000 series defines Maintenance Personnel (ASSE 6040), Inspectors (6020), and Verifiers (6030), so installers move into system maintenance, inspection, and verification work as their careers run.
Certification and state rules: confirm, don't assume
Pay and demand for med gas work
Start with what the federal data cannot say: there is no "medical gas plumber salary" in BLS statistics.
The Occupational Employment and Wage Statistics program publishes one combined occupation — Plumbers, Pipefitters, and Steamfitters, SOC 47-2152 — with no separate wage for medical gas installers, for pipefitters versus plumbers, or for journeyman versus master.
What the combined occupation shows, from OEWS May 2025: a median wage of $30.67 an hour, or $63,800 a year, with the 10th percentile at $21.22 an hour ($44,150 a year) and the 90th at $52.13 an hour ($108,420 a year).
Those figures cover the whole combined trade, not med gas work specifically.
For the full tables, national and by state, see our plumber salary page.
Demand is published for the combined trade too: employment is projected to grow 6.8% from 2025 to 2035, with about 42,000 openings a year on average — above the 3.5% all-occupation average.
What the med gas credential adds to that picture is not quantified anywhere federal: BLS has no line for it, so any claim about a certification pay premium is a local number, not a national one.
If the credential moves wages in your market, it shows up in job ads and contract rates — check the listings where you actually work.
Where med gas jobs are
Wherever health care happens, med gas follows.
Hospitals are the core of the work — operating suites, emergency departments, intensive care, patient rooms — and the same systems run in ambulatory surgery centers, dental clinics, laboratories, and nursing facilities.
Every one of those buildings gets built, renovated, and serviced, and the piping in it is med gas work each time.
The employers are mechanical and plumbing contractors with health-care divisions — hospital work sits at the institutional end of the commercial plumber lane — along with contractors that specialize in institutional pipefitting, and the facilities departments of large hospital systems.
Geographically, this is a national lane.
The compliance driver is federal: Medicare-participating hospitals must follow the 2012 edition of NFPA 99, as incorporated by CMS in 42 CFR 482.41, so the work follows Medicare hospitals across the country.
Bigger hospital markets simply have more of it.
When you search for the work, check plumber and pipefitter listings too, not only "medical gas" postings — federal data counts this work inside one combined occupation, not as its own SOC — and read the descriptions for the credential and the hospital work.
Our plumbing job listings are the place to start.
Career and pay information, not legal or licensing advice. Certification requirements and code editions vary by state and by facility — confirm what applies to you with your state licensing board, the certifying body, and the authority having jurisdiction before you make a decision.