License classifications
- No state general contractor license
- Electrician (apprentice, journeyman, master, medium-voltage) - NH Electricians' Board
- Plumber and fuel gas fitter (apprentice, journeyman, master, plumbing contractor) - NH Mechanical Licensing Board
- Other OPLC trade licenses
How to get licensed in New Hampshire
- For general contracting, confirm there is no state license, then check the local city or town building department for any local permit or licensing requirements.
- Carry workers' compensation insurance if you have employees.
- If your work includes electrical, plumbing, or gas fitting, identify the correct OPLC board (Electricians' Board or Mechanical Licensing Board).
- Complete the required apprenticeship/experience hours for the trade (e.g., 3,000 hours for a plumbing journeyman).
- Apply to the appropriate OPLC board, pay the board fee, and pass the trade exam.
- Renew each trade license on the schedule set by its board.
Frequently asked questions
Does New Hampshire require a general contractor license?
No. There is no state-level general contractor license. You should still check with the local building department, as towns and cities may have their own requirements.
Which trades are licensed by the state?
Electricians and plumbers/gas fitters are licensed through OPLC boards, among other trades. General carpentry and remodeling are not state-licensed.
How do I become a licensed plumber in New Hampshire?
Complete apprenticeship hours (at least 3,000 hours of on-the-job training), pass the journeyman exam, then work at least six months as a journeyman before qualifying as a master plumber.
Who regulates electricians?
The New Hampshire Electricians' Board, which issues apprentice, journeyman, medium-voltage, and master electrician licenses.
Do I need insurance to work as a contractor?
The state does not mandate general liability for unlicensed general contracting, but you must carry workers' compensation if you have employees, and clients often require liability coverage.