New Hampshire · HVAC technician licensing · verified July 2026
New Hampshire HVAC technician license requirements
The short answer
As of July 2026, New Hampshire has no general HVAC technician license, but the state Mechanical Safety and Licensing Board (within the Office of Professional Licensure and Certification) licenses fuel gas fitters, mandatory for the gas-fired heating side of HVAC work, in categories including Installation, Service, Piping, Domestic Appliance, and Hearth System Installation and Service, plus a Trainee tier and Mechanical Business Entities. Oil Heating Technician certification is voluntary, and cooling-only/air-conditioning work requires no state license.
Do you need a license to work as an HVAC technician in New Hampshire?
New Hampshire regulates this trade at the contractor level rather than licensing individual HVAC technicians.
EPA Section 608 certification is federally required for refrigerant handling; New Hampshire imposes no state license for air-conditioning/refrigeration-only work, so a tech servicing only cooling equipment needs no NH license, but installing or servicing gas-fired furnaces, boilers, or appliances requires the Fuel Gas Fitter license, and oil-heat work has a voluntary state certification. Reinstatement fees equal the application fees for each tier. Late renewals 365+ days past expiration are treated as new applicants (exam or 140-hour course path).
What licenses does New Hampshire issue?
The Mechanical Safety and Licensing Board, NH Office of Professional Licensure and Certification (OPLC) issues the credentials below for this trade. Boards often list further classes for specialties and business licenses; these are the ones this page covers.
Hours are what each class asks for on its own terms. Where a senior class shows fewer than a journeyman, the board is counting time served after the earlier license rather than from the start; the prerequisite column says which.
| License | On-the-job hours | Classroom hours | Exam |
|---|---|---|---|
| Fuel Gas Fitter (categories: Installation Technician, Service Technician, Piping Installer, Domestic Appliance Technician, Hearth System Installation and Service) | not published | not published | Yes |
| Fuel Gas Fitting Trainee | not published | not published | No |
| Oil Heating Technician Certification (voluntary) | not published | not published | No |
| Mechanical Business Entity | not published | not published | No |
Source: Mechanical Safety and Licensing Board, NH Office of Professional Licensure and Certification (OPLC) (oplc.nh.gov). Verified July 2026.
What exam does New Hampshire require?
Fuel Gas Fitting licensing examination. Administered by Board-approved providers (Advanced Trade School, Granite State Trade School, NH Gasfitters Continuing Education Online).
How much does a New Hampshire HVAC technician license cost?
New Hampshire sets its fees per license class rather than as one figure for the trade, so no single total would be true of every applicant. The published items are below exactly as the board sets them.
- Application feeset per license class
- Renewal fee (recurring)set per license class
Source: fee schedule (oplc.nh.gov). Verified July 2026.
How often do you renew, and what continuing education is required?
Renewal period: 2 years
Continuing education: 3 hours of code-update education every year, totaling 6 hours per 2-year renewal cycle (all licensees except Apprentice/Trainee registrations)
Source: renewal requirements (oplc.nh.gov). Verified July 2026.
How does the apprenticeship route work?
Entry is via the Fuel Gas Fitting Trainee registration while completing a board-approved fuel-gas training program (the Board references 140-hour fuel-gas courses, NPGA CETP, and listed trade schools); after training and the exam, candidates apply for the Fuel Gas Fitter license.
Which states does New Hampshire have license reciprocity with?
New Hampshire appears in 1 published reciprocal licensing agreement for this trade, covering Vermont. Boards write these as agreements between two states rather than as a one-way list, and some publish the list while their counterpart does not, so this counts every agreement naming New Hampshire from either side. Recognition is never automatic: the board you apply to decides, and most require the original license to have been earned by examination and to be in good standing.
How does New Hampshire compare to neighboring states?
Requirements stop at the state line, which matters if you live near one or expect to move. Here is what the neighboring states ask of the same trade.
| State | Journeyman hours | Licensing model |
|---|---|---|
| New Hampshire | not published | Contractor level only |
| Massachusetts | not published | Statewide |
| Vermont | not published | Statewide |
Source: state licensing boards. Verified July 2026.
Sources and verification
Every fact on this page traces to one of these
- Mechanical Safety and Licensing Board - who we regulate
- License Fees for the Mechanical Safety and Licensing Board
- Mechanical Safety and Licensing Education & Certification Requirements
Last verified July 2026. Found an error? Report it and it will be corrected and logged on the corrections page.
Other states with published requirements for this trade: New Jersey, New Mexico, North Carolina, North Dakota, Ohio, Oklahoma.
Price the whole path with the license cost estimator, or weigh earning against paying for school with the apprenticeship comparison. Back to HVAC technicians overview.
Licensing requirements change between our verification sweeps. This page is informational only, so confirm current requirements with Mechanical Safety and Licensing Board, NH Office of Professional Licensure and Certification (OPLC) before making decisions. Not legal advice.