Check the Right New Hampshire Record Before You Hire or Bid
A New Hampshire contractor license lookup is not one simple statewide general-contractor search. The practical check depends on the work: electrical, plumbing, gas, oil heating, home inspection and other regulated trades may use state professional licensing, while ordinary building work often runs through local permits.
This guide is built for homeowners, property managers and contractors who need the correct Granite State path before signing a contract, pulling a permit, hiring a subcontractor or paying a deposit.
Quick Answer: Search OPLC for State-Licensed Trades, Then Check the Town Permit
Use the New Hampshire Office of Professional Licensure and Certification license lookup for state-regulated trades and professions. For ordinary residential or commercial building work, New Hampshire does not provide one statewide general-contractor license record, so the local permit office and trade-specific licensing records matter most.
Official New Hampshire Links for the Actual Search
Use these links after identifying the trade and project location. OPLC controls many state professional licenses, but cities and towns control many permit questions.
State professional license lookup
Use OPLC’s license lookup when the contractor or worker claims a New Hampshire professional or trade license. Search by license number when available, then verify name, profession, status and expiration.
Trade board and board actions
OPLC tells users to search board actions separately by choosing the applicable profession or board. That matters when you are checking discipline, not just active status.
How to Use the New Hampshire OPLC License Lookup
The OPLC lookup is useful only when you know which profession you are checking. A person may be a licensed electrician, plumber, gas fitter, home inspector, engineer or architect, while the company itself may still need a local permit or business registration check.
Start with the license number
If the contractor gives you a New Hampshire license number, search that first. A number search avoids confusion between similar names in Manchester, Nashua, Concord, Portsmouth and smaller towns.
Choose the correct profession
Do not search “contractor” and stop. Select or identify the board or profession that matches the work, such as electrician, plumber, fuel gas fitter, home inspector or professional engineer.
Open the exact record
Read the detail record instead of relying on a search-result row. Check the name, credential type, status, expiration date and any information the official lookup displays.
Match the job paperwork
The name on the license record should make sense against the proposal, invoice, contract, permit applicant and payment name. A mismatch is not automatically wrongdoing, but it needs a written explanation before money moves.
Check board actions separately
OPLC verification guidance separates license lookup from board-action review. If discipline matters to your decision, open the applicable board page and look for board actions or disciplinary materials.
Recheck right before work starts
Status can change. Reopen the official record on the day you sign, pay a deposit, schedule inspections or allow work to begin.
New Hampshire Does Not Have One Statewide General Contractor License Lookup
For many building and remodeling jobs, the state-level search result will not show a general contractor license because New Hampshire does not use a single statewide general-contractor license for all residential or commercial construction work.
That does not mean “no rules.” It means the answer shifts to the actual trade license, the local building permit, the business identity, insurance and any project-specific requirements.
Licensed professions
Electrical, plumbing, fuel gas, mechanical-safety and some design or inspection roles can be checked through OPLC or the proper state board path.
City or town approval
Building, zoning, fire, electrical, plumbing, mechanical and occupancy approvals often depend on the municipality where the project is located.
Secretary of State check
A New Hampshire business filing can help confirm the legal entity name, but it is not a contractor license and does not prove trade authority.
State Trade Records to Check in New Hampshire
The right lookup depends on the work. Use this resolver before hiring a contractor or approving a subcontractor on a New Hampshire job site.
| Work type | Likely state record | What to compare | Where to start |
|---|---|---|---|
| Electrical installation, repair or alteration | Electrician license through the New Hampshire Electricians’ Board and OPLC. | License number, name, level, status, expiration and whether the person or business role fits the permit. | NH Electricians’ Board |
| Plumbing work | Master plumber, journeyman plumber or related mechanical license. | License holder, business entity, permit applicant and local inspection record. | Mechanical Safety and Licensing Board |
| Fuel gas, gas piping, hearth or appliance work | Fuel gas fitter, gas trainee, domestic appliance or related mechanical credential. | Credential type, scope, license status and local permit requirements. | Mechanical Safety and Licensing Board |
| Home inspection | Home inspector license through OPLC. | License status, expiration and whether the person named in the report is the license holder. | NH Board of Home Inspectors |
| Engineering, architecture or stamped plans | Professional engineer or architect license, depending on the service. | License status, professional name, firm name if relevant and seal/signature on plans. | OPLC License Lookup |
| General remodeling, roofing, decks or additions | No single statewide general-contractor license record; trade licenses may still apply. | Local permit, business entity, insurance, written scope and any licensed subcontractors. | City or town building department |
Local Contractor and Permit Checks: Manchester, Nashua, Concord and Portsmouth
New Hampshire building-code law places much of the practical permit work with local enforcement agencies where a municipality has adopted an enforcement process. For state-owned buildings, the State Fire Marshal permit path can apply.
Manchester
Manchester’s Building Regulations office handles building, electrical, heating, plumbing, sign and demolition permit application processing. The city notes that multi-family dwellings, non-owner-occupied single-family dwellings and commercial projects require a licensed New Hampshire master electrician for electrical permit applications.
Nashua
Nashua’s Building Safety Department provides permit submission requirements and inspections for work performed. The city warns that other permits may be required by Building Safety depending on the work.
Concord
Concord’s permit portal includes online permit applications for Code Administration permits, Building, Zoning, Health & Licensing permits, Engineering, Fire Department inspections and Planning.
Portsmouth
Portsmouth uses ViewPoint Cloud for online inspection permits. The city says building permit types were consolidated into a single application, while plumbing, mechanical, electrical and fire permits remain separate applications.
Business Name, Workers’ Compensation and Insurance Checks
A business registration is not a contractor license, but it is still useful. It helps you confirm whether the name on the proposal is a real New Hampshire business entity or registered trade name.
Business identity
Use NH QuickStart or the Secretary of State business search to compare the contractor’s legal name, trade name and business status. This does not prove skill or license authority.
Workers’ compensation
For contractors with employees, ask for current workers’ compensation proof that matches the business name and work classification. Public projects and many permit offices may ask for coverage proof.
General liability
Ask for a certificate of insurance directly from the agent or carrier when the project risk is meaningful. Check the insured name, dates, limits and whether the work type makes sense.
Complaints, Board Actions and Contractor Problems
Use the complaint route that matches the problem. OPLC is the right path for a licensed professional or a person allegedly practicing a regulated profession without the required license. A contract dispute, poor workmanship concern or consumer fraud issue may also involve the local building official, New Hampshire Department of Justice Consumer Protection and Antitrust Bureau, private legal help or insurance.
| Problem | Likely first place | What to save |
|---|---|---|
| Unlicensed electrical, plumbing or gas work | OPLC complaint route and the applicable board. | License claim, photos, messages, permit record, invoice and worker name. |
| Permit, inspection or code issue | Local building inspector, code enforcement office or fire official. | Permit number, inspection notes, correction notices, plans and photos. |
| Misrepresentation, taking money and not performing | NH Department of Justice Consumer Protection and Antitrust Bureau. | Contract, proof of payment, advertisements, texts, emails and timeline. |
| Business-name confusion | NH Secretary of State business search, then ask the contractor for a written explanation. | Business search screenshots, contract name, invoice name and payment recipient. |
2026 Update: Residential Builder Registration Is Being Studied, Not Already Launched
New Hampshire enacted Chapter 258 in 2026 to establish a committee to study implementation of a statewide registration system for residential builders and contractors. The committee is active, with findings and recommendations due to state leadership by November 1, 2026.
This matters because older or speculative contractor pages may talk as if a statewide residential builder registration is already operating. As of this review date, treat it as a study process, not a live statewide registration lookup for general residential builders.
What the study committee means
The legislature is evaluating whether a registration system could improve transparency, consumer protection and accountability in the residential building market.
What it does not mean today
It does not create a live general contractor license lookup, does not replace OPLC trade licensing, and does not remove the need for local permits.
Official New Hampshire Contacts
Use these contacts for official help. Do not send sensitive personal, financial or legal documents through ordinary email unless the agency specifically instructs you to.
Office of Professional Licensure and Certification
Other official checks
New Hampshire Contractor License Lookup FAQs
Where do I look up a New Hampshire contractor license?
Use the New Hampshire OPLC license lookup for state-regulated professional and trade licenses. For general building work, also check the city or town permit office because New Hampshire does not have one statewide general-contractor license lookup.
Does New Hampshire have a statewide general contractor license?
No single statewide general-contractor license lookup covers all New Hampshire building contractors. State licensing applies to certain trades and professions, while local permitting controls many building projects.
Who licenses electricians in New Hampshire?
Electricians are regulated through the New Hampshire Electricians’ Board and OPLC. Electrical installation for compensation generally requires a person licensed under the electricians’ law unless an exemption applies.
Who licenses plumbers and gas fitters in New Hampshire?
Plumbers, fuel gas fitters and related mechanical credentials are handled through the New Hampshire Mechanical Safety and Licensing Board under OPLC.
Can I verify a contractor by business name only?
No. A business record can confirm an entity name, but it is not a trade license and not a permit. Match the business record with the OPLC license, local permit, insurance certificate and written contract.
Do I need a permit if the contractor has a New Hampshire trade license?
Possibly. A license allows a person to perform regulated work, but a permit authorizes a specific project. The local building department or State Fire Marshal permit path controls the permit answer.
Where do I check contractor discipline in New Hampshire?
Use OPLC’s board-action path for the applicable profession or board. License lookup and board-action review are separate checks.
What should I compare before hiring a New Hampshire contractor?
Compare the legal business name, OPLC license record if a trade is regulated, Secretary of State business record, insurance certificate, permit applicant, written scope, payment name and inspection requirements.
Is there a New Hampshire home improvement recovery fund?
New Hampshire does not operate the same type of statewide home improvement contractor recovery fund found in some other states. For disputes, use the correct OPLC, local building, consumer protection, insurance or private legal route.
What changed in 2026 for New Hampshire residential builders?
New Hampshire created a committee to study a possible statewide residential builder registration system. That is not the same as a live general contractor registration lookup, and recommendations are due by November 1, 2026.
Can an out-of-state contractor work in New Hampshire?
An out-of-state contractor must still meet any New Hampshire trade licensing, business registration, insurance, tax and local permit requirements that apply to the project.
What is the safest first step for a homeowner?
Ask the contractor for the exact legal business name, license number if a licensed trade is involved, insurance certificate and permit plan. Then verify each item through OPLC, NH QuickStart and the local permit office before paying.
Final New Hampshire Contractor Check
The right New Hampshire lookup is a layered check: OPLC for licensed trades, Secretary of State for business identity, Department of Labor or insurance documents for coverage, and the local building department for permits and inspections.
Do not search for a single “NH contractor license” and stop. Match the record to the trade, the town, the contract and the person taking payment.