New Hampshire Plumber License Requirements
What the state board actually requires: fees, renewal cycle, and requirements from official records.
Installs and repairs pipes and plumbing systems. Requires apprenticeship.
What the New Hampshire data shows for Plumbers
Becoming a licensed plumber in New Hampshire means clearing a defined set of hurdles: 4,000 training hours, a passing score on State Journeyman Plumber Exam, and 4 years of supervised work experience, plus a background history check once the applicant turns 18. New Hampshire regulators place this credential inside their licensing framework, which classifies the training track as "Apprenticeship Program".
The initial price tag is $30, and renewal costs $30 every 1 years. Renewal isn't the end of the cost: 8 hours of continuing education are due every 1-year cycle, a recurring time commitment worth planning for.
Reciprocity for this profession works like this: Journeyman licenses rarely reciprocal — check state board.
Licensing Ease Score
A higher score means this specific license is LESS burdensome to obtain and maintain here than the national requirement corpus, based on education hours, fees, continuing education, and experience requirements, not an overall judgment of the profession or the state.
Licensing Requirements in New Hampshire
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Frequently Asked Questions
What license do I need for Plumber in New Hampshire? ▼
How do I get certified as a Plumber in New Hampshire? ▼
Can I transfer my Plumber license to New Hampshire from another state? ▼
Does New Hampshire require a background check for Plumber licensing? ▼
What are the continuing education requirements for Plumber in New Hampshire? ▼
Related Guides
What to do with this plumber license
Plumber in New Hampshire, with a documented reciprocity path, is one requirement row in a plumber-wide, 50-state comparison.
- See how New Hampshire's plumber requirements compare to every other state before relocating. Plumber in every state
- Confirm whether your out-of-state plumber license transfers under an interstate compact before starting a new application. Reciprocity guide
- See how New Hampshire's overall licensing burden compares to other states, not just this one profession. New Hampshire overview
Requirements shown are compiled from NCSL and Institute for Justice research; verify current rules with the New Hampshire licensing board before making career decisions.
Source: NCSL Occupational Licensing Database, Institute for Justice License to Work (3rd Ed.), state licensing board websites
According to the National Conference of State Legislatures and the Institute for Justice, the PlainCredential comparison corpus (current as of May 15, 2026) maps 4,947 state licensing requirement records; see the methodology.
Read our methodology - how this data is sourced, computed, and verified.