New Hampshire licenses electricians, plumbers, and gas/mechanical trades statewide through OPLC; there is no statewide general-contractor license — general contracting is governed locally. Verify a trade license on OPLC's lookup.
20,613 currently-active NH OPLC New Hampshire trade licenses (as of 2025-12-28) are ingested from public records — look up any New Hampshire license number against the official roster below.
Check a New Hampshire license against our roster
Enter a license number for an instant check against ProFix's verified New Hampshire roster — a head start, not a replacement for the board. Then confirm current status at the Office of Professional Licensure & Certification (OPLC), which is always the system of record.
Exact license number is the safest path.
A name search can only return possible matches. Confirm the exact license number before trusting any candidate.
1. Get the license number + legal business name
Ask the contractor for their New Hampshire license or registration number and the exact legal name it's held under. A real contractor gives this without hesitation — it's on their truck, estimates, and contract.
2. Look up the trade license — and check locally for a GC
For a licensed trade, use the Office of Professional Licensure & Certification (OPLC) directly. New Hampshire licenses electricians, plumbers, and gas/mechanical trades statewide through OPLC; there is no statewide general-contractor license — general contracting is governed locally. Verify a trade license on OPLC's lookup. For a general contractor, New Hampshire verification happens at your city or county building department.
3. Confirm the status is ACTIVE
Only an active (or current) status means they're licensed today. Expired, suspended, or revoked is a hard stop — and a contractor who let it lapse is telling you something.
4. Check the classification matches your job
Licenses are scoped to specific trades. Confirm the classification covers the work you're hiring for, and that the name on the license matches the name on your contract.
5. Check bond, insurance, and complaints where shown
Many boards also show bond amount, workers' compensation, and complaint or disciplinary history. A bond and active workers' comp protect you; an open complaint is worth a direct conversation before you sign.
New Hampshire contractor-license FAQ
How do I check if a contractor is licensed in New Hampshire?
New Hampshire licenses electricians, plumbers, and gas/mechanical trades statewide through OPLC; there is no statewide general-contractor license — general contracting is governed locally. Verify a trade license on OPLC's lookup. So: verify a licensed trade at the Office of Professional Licensure & Certification (OPLC), and verify a general contractor with your city or county building department. Either way, confirm the status is ACTIVE and the name matches your contract.
Who licenses contractors in New Hampshire?
New Hampshire licenses electricians, plumbers, and gas/mechanical trades statewide through OPLC; there is no statewide general-contractor license — general contracting is governed locally. Verify a trade license on OPLC's lookup.
Does ProFix verify New Hampshire contractor licenses?
Yes. We've ingested 20,613 currently-active New Hampshire NH OPLC trade licenses from public data, so you can check any New Hampshire license number against the official roster — and we link the live NH OPLC lookup so you can confirm it at the source.
Couldn't verify them — or want a vetted second option?
The Office of Professional Licensure & Certification (OPLC) is always the system of record — confirm status there first. If a contractor won't share a license number, the status comes back inactive, or you just want another quote, get matched with license-checked New Hampshire pros.
Find a verified New Hampshire contractor
Browse New Hampshire home-services pros — many with a board-verified license you can confirm in one click.