New Hampshire contractor license lookup
It issues state licenses for electrical contractors, plumbing contractors and HVAC contractors. Our survey found no state-level license for general contractors and roofing contractors, so check with the city or county. Use the official lookup below to check a contractor. Information as of October 6, 2026.
Look up a license
| Trade | Credential | Board | Official lookup |
|---|---|---|---|
| General contractor | No state license | City or county | Our survey of official New Hampshire sources found no state-level general contractor license. Check with the city or county where the work is done. |
| Electrical | State license | New Hampshire Electricians' Board (Office of Professional Licensure and Certification) | Search electrical licenses |
| Plumbing | State license | New Hampshire Mechanical Licensing Board (Office of Professional Licensure and Certification) | Search plumbing licenses |
| HVAC | State license | New Hampshire Mechanical Licensing Board (Office of Professional Licensure and Certification) | Search HVAC licenses |
| Roofing | No state license | City or county | Our survey of official New Hampshire sources found no state-level roofing contractor license. Check with the city or county where the work is done. |
Verify a contractor
For homeowners hiring in New Hampshire.
- Ask the city or county building department where the work is done how they license general contractors.
- For electrical work, also check the electrical contractor lookup from Office of Professional Licensure and Certification.
- For plumbing work, also check the plumbing contractor lookup from Office of Professional Licensure and Certification.
- For HVAC work, also check the HVAC contractor lookup from Office of Professional Licensure and Certification.
- Each mechanical license states which specialty the holder is licensed for, such as master plumber or fuel gas installation technician. source A plumber or gas fitter may not do work outside the specialty on the license. source A plumber or gas fitter must show the license on request. source An electrician's license certificate must be displayed at the principal place of business or carried on the job. source A company doing electrical work must have a licensed master electrician in charge of the business. source New Hampshire's online license verification search covers electricians and Mechanical Licensing Board licenses such as master plumber and gas fitter, searchable by profession, license type, name or license number. source
- A complaint of professional misconduct against a licensee must be brought within 5 years of when the office could reasonably have discovered it. source
Homeowner protections in New Hampshire
- Oil heat certification is voluntary, but falsely claiming it in ads, signs or in person is an offense. source
Get licensed
For a general contractor working in New Hampshire.
- Our survey found no state-level general contractor license in New Hampshire. Ask the city or county where you will work.
Other trades
- Electrical: state license, $198 fee. Requirements
- Plumbing: state license, $330 fee. Requirements
- HVAC: state license, $198 fee. Requirements
Requirements by trade
| Exam | Yes, a board-approved exam; the master exam has 125 question. source |
|---|---|
| Experience | 8,000 hours as an apprentice electrician plus 600 hours of schooling for the journeyman license; a master applicant then needs 2,000 hours as a journeyman before the master exam. source |
| Bond | Not found on an official source. On an official source. |
| Insurance | Not found on an official source. On an official source. |
| Renewal | Master and journeyman licenses renew every 2 years from the date of issuance. source |
| Reciprocity | License by endorsement for holders of an active license in good standing from a jurisdiction whose requirements are substantially similar, as determined by the OPLC executive director. source |
| Fees |
|
| Exam | Yes, an exam set by the Mechanical Licensing Board is required for plumber and fuel gas fitter license. source |
|---|---|
| Experience | Master plumber: at least 6 months holding a New Hampshire journeyman plumber license; journeyman: a US Department of Labor or sponsor apprenticeship completion certificate, at least 600 hours of educational training and at least 8,000 working hours of on-the-job experience, or prior journeyman licensure in another state plus the exam (Mec 305.01, effective 2-13-26). source |
| Bond | Not found on an official source. On an official source. |
| Insurance | A licensed plumbing or fuel gas business entity must show proof of liability insurance; the statute sets no minimum amount. source |
| Renewal | Licenses are valid for 2 years from the date of issuance. source |
| Reciprocity | Reciprocity is available only with states that have a mutual mechanical licensing reciprocity agreement with New Hampshire; the statute does not name the state. source |
| Fees |
|
| Exam | Yes, an exam set by the Mechanical Licensing Board is required for plumber and fuel gas fitter license. source |
|---|---|
| Experience | Fuel gas installation technician: 1,000 hours of field experience within 60 months, assuming that specialty applies; the service technician specialty needs 2,000 hour. source |
| Bond | Not found on an official source. On an official source. |
| Insurance | A licensed plumbing or fuel gas business entity must show proof of liability insurance; the statute sets no minimum amount. source |
| Renewal | Licenses are valid for 2 years from the date of issuance. source |
| Reciprocity | Reciprocity is available only with states that have a mutual mechanical licensing reciprocity agreement with New Hampshire; the statute does not name the state. source |
| Fees |
General contractor: Our survey of official New Hampshire sources found no state-level general contractor license. Check with the city or county where the work is done.
Roofing: Our survey of official New Hampshire sources found no state-level roofing contractor license. Check with the city or county where the work is done.
Questions
- Does New Hampshire require a contractor license?
- It depends on where the work is done. Our survey of official New Hampshire sources found no state-level general contractor license. Check with the city or county where the work is done.
- How do I look up an electrician license in New Hampshire?
- The New Hampshire Electricians' Board (Office of Professional Licensure and Certification) keeps the record for electrical contractors in New Hampshire. Use the official lookup linked in the Look up a license table, and treat the board's own record as final.
- How do I look up a plumbing license in New Hampshire?
- The New Hampshire Mechanical Licensing Board (Office of Professional Licensure and Certification) keeps the record for plumbing contractors in New Hampshire.
- Does New Hampshire have an HVAC license?
- The New Hampshire Mechanical Licensing Board (Office of Professional Licensure and Certification) keeps the record for HVAC contractors in New Hampshire.
- Do roofers need a license in New Hampshire?
- Our survey of official New Hampshire sources found no state-level roofing contractor license.
Sources
- https://www.oplc.nh.gov/find-board/electricians-board
- https://forms.nh.gov/licenseverification/
- https://gc.nh.gov/rsa/html/XXX/319-C/319-C-mrg.htm
- https://www.oplc.nh.gov/find-board/mechanical-licensing-board
- https://gc.nh.gov/rsa/html/XII/153/153-mrg.htm
- https://gc.nh.gov/rules/state_agencies/elec100-400.html
- https://gc.nh.gov/rsa/html/XXX/310/310-mrg.htm
- https://gc.nh.gov/rules/state_agencies/plc1000.html
- https://gc.nh.gov/rules/state_agencies/mec300.html
This is not a government site. The licensing board's own record governs; always confirm on the official lookup. Information as of October 6, 2026.