New Hampshire licensing
Licensing in New Hampshire — Sources checked
Who and what this applies to
New Hampshire electrical and mechanical trade licensing.
Thresholds and scope
Electrical work for compensation is subject to RSA 319-C; mechanical specialty licenses are governed by RSA 153.
The rules
- Electrical installations for compensation require an electrician or other person licensed by OPLC, subject to the chapter’s exceptions. Source
- Mechanical licenses identify the authorized plumbing, fuel-gas, hearth-system or domestic-appliance specialty; a licensee cannot work outside that specialty and must make the license available for inspection. Source
- Mechanical licensing has specific exemptions, including qualifying owner-occupied existing single-family fuel-gas work; that exemption still requires compliance with technical standards, codes and inspection requirements. Source
Primary sources
Sources reviewed 2026-09-30. This guide covers the projects and rules stated above.
Not legal advice. This is general legal information. Laws and project facts differ; confirm the applicable requirements for your project.
Back to New Hampshire contractor law · Licensing topic guide.
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