New Hampshire Carpentry License Requirements (2026)

New Hampshire does not license carpenters or general contractors at the state level. NH OPLC licenses electricians, plumbers and gas fitters but explicitly declines to license general or carpentry contractors. Carpentry is regulated through the New Hampshire Consumer Protection Act (RSA Chapter 358-A) and the Home Improvement Contracts statute (RSA Chapter 359-G), which makes a written contract mandatory for any home improvement project over $500. Local jurisdictions like Manchester and Nashua may require contractor registration through the building department. Carpenters must use the statutory written contract, hold workers compensation for any employees, and follow the State Building Code (RSA Chapter 155-A).

Federal requirement: EPA Lead RRP Rule

Whether or not New Hampshire licenses this trade, any work that disturbs paint in pre-1978 housing falls under the federal EPA Lead RRP Rule nationwide. See our complete EPA RRP Lead Certification guide for who needs firm and renovator certification, what it costs, and how renewal works.

Governing Authority

New Hampshire Office of Professional Licensure and Certification (OPLC) — trade boards (OPLC) administers and enforces this credential under the authority of New Hampshire RSA 319-C (Electricians), RSA 329-A (Plumbers), RSA 153 (Mechanical/Gas Fitters); administrative rules Elec 100–600, Plu 100–600, Saf-C 6000 series. New Hampshire does not license general contractors at the state level. Trade boards under the OPLC umbrella license individual electricians, plumbers, and gas fitters statewide. Mechanical/HVAC work intersects the Gas Fitters Board (for fuel gas piping) and local mechanical permitting; pure HVAC ductwork is not separately state-licensed. New Hampshire is unusual in the Northeast for combining strict individual trade licensing with no general contractor license at all — accountability for general construction sits at the municipal building department and through civil contract law. Home improvement contractors are not registered or bonded by the state; consumer protection runs through RSA 358-A (Consumer Protection Act) enforced by the Attorney General. Always confirm current rules with OPLC and the local building official before bidding work. Overview of the New Hampshire licensing landscape: New Hampshire takes a deliberately light-touch approach to construction trades regulation compared to its neighbors. There is no statewide general contractor license, no statewide home improvement contractor registration program (unlike Massachusetts HIC or Rhode Island contractor registration), and no statewide building permit. Instead, the state relies on three pillars. First, the building code: New Hampshire adopted the State Building Code under RSA 155-A, which incorporates the International Building Code, International Residential Code, International Mechanical Code, International Plumbing Code, International Energy Conservation Code, and the National Electrical Code by reference. The State Fire Marshal enforces the State Building Code in jurisdictions that have not adopted local enforcement, while most populated municipalities run their own building departments and issue their own permits. Second, individual trade licensing: the Electricians Board, the Plumbers Board, and the Mechanical Licensing Board (Gas Fitters) license journeyman and master tradespeople under their respective statutes. These licenses are personal to the individual and follow the worker between jobs and between employers. Third, consumer protection law: home improvement disputes are handled through RSA 358-A and standard contract law, not through a state license bond pool. What this means in practice for contractors: a self-employed builder in New Hampshire can legally bid and build a single-family home without any state-issued license, provided every electrical worker on site holds a current Electricians Board license, every plumber holds a current Plumbers Board license, every gas fitter holds a current Gas Fitters Board license, the project clears the local building department permit, and the work passes all required inspections. The contractor may still need a federal EIN, state business registration with the Secretary of State, business profits and enterprise tax accounts with the New Hampshire Department of Revenue Administration, and (if hiring) workers compensation coverage under RSA 281-A. The Department of Labor enforces workers compensation aggressively, and uninsured employers face stop-work orders. Municipal nuances matter. Manchester, Nashua, Concord, Portsmouth, Dover, and Keene each operate full building departments with their own permit application packets, contractor sign-in requirements, and inspection schedules. Some towns require the contractor to be listed on the permit; some require proof of insurance before issuing the permit; a few smaller towns have no building inspector at all and rely on the State Fire Marshal. Always call the building department before assuming a project does not need a permit. Electrical and plumbing permits are typically pulled by the licensed tradesperson, not the general contractor, and the inspection is performed by the municipal inspector or by the State Electrical or State Plumbing inspector in unincorporated areas. Reciprocity is meaningful here. The Electricians Board holds reciprocal agreements with several New England states for master and journeyman credentials, as does the Plumbers Board. The Mechanical Licensing Board recognizes equivalent gas fitter credentials from neighboring states on a case-by-case basis. Reciprocal applicants still pay New Hampshire fees, submit a New Hampshire application, and in most cases sit for the New Hampshire-specific portion or the full New Hampshire exam. Renewal cycles vary by board (electricians and plumbers renew on a three-year cycle; gas fitters renew on a two-year cycle), and continuing education requirements are set by each board. Because New Hampshire publishes most rules and forms only on the OPLC website and the General Court statute pages, contractors should bookmark oplc.nh.gov and gencourt.state.nh.us and check both before paying any fee or scheduling an exam. Rates and fee amounts in this guide should be confirmed directly with the relevant board before submitting payment.

Official portal: https://www.oplc.nh.gov/
Address: 7 Eagle Square, Concord, NH 03301
Phone: (603) 271-2152

Eligibility Requirements

To qualify, an applicant must have reached age 18 and hold a valid Social Security Number. No New Hampshire residency requirement.

Good moral character

Criminal history is reviewed case-by-case by the licensing authority.

Background investigation

Criminal history disclosure required on the application.

Experience & Education Matrix

There is no published year count for this credential in the cited sources. What actually controls eligibility is No experience requirement at the state level..

Accepted proof of experience or eligibility

Notarized experience affidavits from licensed supervising contractors
W-2s, 1099s, or payroll records covering the qualifying period
Apprenticeship completion certificate where applicable

Education substitution

Approved carpentry apprenticeship or accredited trade school coursework may substitute for part of the experience requirement.

Examination Structure

The cited state materials do not require a written state trade examination for this credential. The controlling process is: No state trade exam.

Examination fee: No state license fee. Local building permit fees apply.

Retake policy: Failed parts may be retaken after paying a new exam fee. Applications remain valid for one year.

Insurance & Financial Security

The cited materials impose no contractor license bond for this credential. Bear in mind that specific contracts, permits, or public works can still require their own bonds.

General liability

No state minimum. Most New Hampshire homeowners and lenders require $500,000 to $1,000,000 commercial general liability.

Workers' compensation

Workers compensation is mandatory under RSA §281-A:6 for any contractor with one or more employees.

Additional financial requirements

No financial statement required.

Application and License Fees

Fee	Amount
Application (non-refundable)	No separate state fee
Initial license	No separate state fee
Renewal (every year)	No separate state fee

Maintenance & Renewal

Expect to renew the New Hampshire Carpentry (no state license; mandatory written contract law) every year. The cited materials name no distinct statewide fee for renewal. No state credential to renew. Insurance, contracts and local permits must remain current.

Continuing education: No state continuing education requirement.

Downloadable Asset

2026 New Hampshire Carpentry License Roadmap (PDF) — a printable step-by-step checklist for the application process.

Download the PDF roadmap →

Reciprocity and Endorsement

New Hampshire does not accept the NASCLA Accredited Examination for this classification.

Reciprocal State	Accepted Exam	Conditions
No formal bilateral reciprocity agreements identified.

New Hampshire has no state license to reciprocate.

Weighing more than one jurisdiction? The national hub compares Carpentry license requirements in every state — exam, bond, fee, and experience thresholds side by side.

Step-by-Step Application Roadmap

Register the business with the New Hampshire Secretary of State. For LLCs and corporations.
Obtain general liability insurance. Most owners require $500K to $1M.
File workers compensation certificate. RSA §281-A:6 mandatory for any employees.
Adopt the statutory written contract template. Per RSA Chapter 359-G.
Coordinate with local building inspectors. For State Building Code permits.
Maintain EPA Lead RRP certification. For pre-1978 work.
Renew GL and workers compensation annually. No state credential to renew.

Study and Reference Materials

The references below are either cited by the board, used during the application, or standard preparation for the trade. They are listed purely for convenience — CLR earns no commission on any of them.

New Hampshire Home Improvement Contracts Act (RSA Chapter 359-G) — State of New Hampshire. Mandatory written contract law.
New Hampshire State Building Code (RSA Chapter 155-A) — New Hampshire Building Code Review Board. Adopts IRC and IBC statewide.
International Residential Code (NH-adopted edition) — International Code Council. Primary technical reference.

Common Filing Mistakes

Drawn from the board instructions and sources cited on this page, the pitfalls below are the ones most likely to slow down or sink a New Hampshire Carpentry application.

No written contract

RSA Chapter 359-G makes oral home improvement contracts unenforceable and exposes the contractor to AG enforcement under the Consumer Protection Act.

Skipping local building permits

New Hampshire towns require building permits for any structural carpentry under the State Building Code (IRC adoption).

Lead RRP for pre-1978 trim

EPA RRP certification is federally required and NH DHHS Lead Hazards Program enforces concurrently.

Workers compensation

Even one helper triggers RSA §281-A:6.

Misclassifying employees as 1099

NH Department of Labor enforces strict criteria for independent contractor status. Misclassification is a $2,500 per employee penalty.

Pre-Submission Checklist

The items below are the ones worth confirming before the application is filed with OPLC:

☐ NH Secretary of State business registration
☐ Statutory written home improvement contract template
☐ Certificate of general liability insurance
☐ Workers compensation certificate (if employees)
☐ EPA Lead RRP certification (pre-1978 work)
☐ Local building permit applications per project

Other New Hampshire Trade Licenses

If the Carpentry license is not the right fit, the following published New Hampshire trade guides are also covered by CLR:

Frequently Asked Questions

Does New Hampshire require a carpentry license?

No. NH OPLC licenses no general or carpentry contractor at the state level. Carpentry is regulated through the Consumer Protection Act and Home Improvement Contracts statute.

What does the Home Improvement Contracts Act require?

RSA Chapter 359-G requires a written contract for any home improvement project over $500, with the contractor name, address, scope, price, payment schedule, and three-day cancellation notice.

Do I need workers compensation?

Yes, for any contractor with one or more employees under RSA §281-A:6.

Are there local registration requirements?

Manchester and Nashua may require contractor registration through the building department. Most towns rely on the State Building Code instead.

How does NH handle out-of-state contractors?

No registration required, but the Home Improvement Contracts Act and State Building Code apply equally.

Primary Sources

Regulatory requirements on this page are drawn from the official board, statute, and exam-provider materials listed below.

Verified 2026-06-06 · Next scheduled review 2026-09-04