Quick Reference Table
Requirement | Details |
|---|---|
License Type | Class I Contractor, Class II Contractor, Fuel Piping Contractor, Limited Plumbing Contractor, Residential Fire Sprinkler Design Contractor, Technician (Class I, II, Government Technician, Private Institution Technician) |
Regulating Agency | State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors |
Experience Required | Contractor: 2 years (4,000 hours) plumber or heating experience. |
Exam Required | Yes; Two parts: Business/Law, Technical. Administered by PSI. Immediate computer score. |
Renewal | Annual. Expires December 31. $25 late renewal penalty if in January. |
Continuing Education | Board "may adopt" CE; no hours currently required. Verify for updates. |
Fees | Application: $75–$125 max. Annual: up to $150. Exam: up to $100. Late: $25. Fire sprinkler higher. Fee statutes |
Official Links | Homepage |
Who Needs a Plumbing License in North Carolina?
In North Carolina, you need a plumbing license for any plumbing, heating, or fire sprinkler contracting work, regardless of job price. There is no minimum dollar threshold for plumbing license requirements in North Carolina. If you are offering to contract, bidding on, or performing plumbing system installations or replacements, including both commercial and residential work, you must be licensed.
The statute is comprehensive: any work described as "plumbing," which means supplying water and conveying wastes and gases, falls under this requirement (G.S. 87-21). Similarly, heating and fire sprinkler system work falls under the same license law.
There are two key exceptions in the plumbing license requirements in North Carolina. First, employees who work directly for a licensed contractor do not need their own licenses, as long as they do not act as a contractor themselves. Second, minor repairs and replacements that do not alter the energy source, venting, or size of the plumbing or heating system do not require a license. Federal projects located on federally owned land are exempt as well.
For general contractors, if the plumbing portion of a contract is minor compared to the total contract value, the plumbing license requirement may not apply (see G.S. 87-1.1). However, most work involving supply lines, waste lines, or new water service, even if "just a bathroom", triggers licensing, not just a business license. Handymen and owner-builders are subject to the same scope restrictions: only truly minor repairs are exempt. If in doubt, verify at the board consumer awareness page.
Plumbing License Types in North Carolina
North Carolina distinguishes several plumbing license types. Most plumbing contractors will pursue either the Class I Contractor or Class II Contractor license, but you should carefully match the scope of work and types of buildings you plan to work on to these categories.
Class I Contractor: Permits you to contract for and supervise plumbing, heating, and fire sprinkler systems of any size or type, for any structure (commercial, multifamily, and residential). This is the broadest plumbing license in requirements in North Carolina (G.S. 87-21(b)(1)).
Class II Contractor: Restricts your work to plumbing and heating systems in single-family detached residential dwellings only. If you plan to work strictly on houses, this license may suffice (G.S. 87-21(b)(1)).
Fuel Piping Contractor: Allows you only to install fuel piping from an approved source to the building. Use this if your company specializes in fuel gas piping (G.S. 87-21(b)(2)(a)).
Limited Plumbing Contractor: Restricts you to certain exterior water or sewer lines, backflow prevention, and comparatively small fuel piping into residences. This is narrower than Class I or II (G.S. 87-21(b)(2)(b)).
Residential Fire Sprinkler Design Contractor: For design and installation of multipurpose residential fire sprinkler systems only (G.S. 87-21(b)(2)(e)).
Technician Licenses: Include Class I Technician, Class II Technician, State or Local Government Technician, and Private Educational Institution Technician. These are for individuals who work under the supervision of a contractor (applicant info).
The board lets applicants combine multiple classifications on one license (for example, both plumbing and heating). If you specialize in just one aspect, restricted licenses may be an option, but always be sure your license type matches every project you take.
How to Get Licensed in North Carolina
To meet plumbing license requirements in North Carolina, you must follow these specific steps. Missing any will delay your application.
Read the Board’s Applicant Information page (see forms and booklet). Review the Book Reference List & Requirements for your trade and license classification.
Determine your experience eligibility. For contractors: You need 2 years (4,000 hours) of full-time verifiable on-site experience in the field. See "Application Requirements" below for technician experience.
Download and complete the application. Get it notarized if required.
Order reference books. For exam prep, you must have current editions of North Carolina Laws and Rules, plus the relevant Business & Project Management booklets.
Complete a background check. Follow the Board’s current instructions in the application packet. Verify for updates.
Submit your application. Use the Online Services page for online submissions, or send by mail if you prefer.
Wait for Board review. Application processing typically takes about six weeks for standard contractor classifications, as of 2026.
When approved, register for the license exam. The Board will instruct you to schedule exam dates with their third-party provider, PSI Services, LLC.
Pass both exam parts. You must achieve a passing score on both the Business/Law and Technical exams to qualify for a license (see "Exams" for retake rules).
Pay license fee and obtain license. Once you pass, submit fees as directed and receive your North Carolina plumbing license.
Application Requirements for Plumbing License Requirements in North Carolina
All applicants must meet specific plumbing license requirements in North Carolina before approval. Requirements vary by license type, but several core criteria apply to every classification.
Experience and Age Requirements
For contractor (plumbing or heating) applicants, the Board requires at least 2 years (4,000 hours) of full-time experience performing or supervising the relevant work. Notably, up to half this experience may be in an approved academic or technical training program. Technician classifications require less: 18 months (3,000 hours) for Class I, 15 months (2,500 hours) for Class II, and 9 months (1,500 hours) for Fuel Piping Technician. All applicants must be at least 18 years old (G.S. 87-21(b)(3)).
Application Documentation
You must supply detailed documentation of your work history, employer references, or transcripts for academic credit. The Board recommends using its forms to accurately record start and end dates, duties performed, and supervisor contact information. If using out-of-state experience, attach additional verification, see more in the "Reciprocity" section.
Bond and Insurance
There is no bond or minimum insurance requirement listed for plumbing or heating contractors on the North Carolina plumbing board or in Chapter 87 statutes. You should verify this on the latest Applicant Information page before applying in case future regulations change.
Background Check
The application process requires a criminal background check as part of the plumbing license requirements in North Carolina. The Board’s packet explains the current process. No fingerprint vendor or form is specified in official sources, so check the Board’s application page for current forms and instructions.
Other Credentials
Citizenship is not specified as a criterion in current statutes. Financial statements, insurance minimums, and federal certifications such as EPA 608 are not officially listed as requirements for a North Carolina plumbing license. Always confirm before proceeding in case rules change or special projects (such as those involving refrigeration or environmental work) require additional documentation.
Exams for Plumbing License Requirements in North Carolina
All plumbing license requirements in North Carolina include passing a comprehensive license exam. The process is uniform for all contract-level classifications, with minor adjustments for technician licenses.
The exam consists of two parts: a Business and Law section, and a trade-specific Technical section. You must pass both to qualify. Exams are offered at least twice per year, and you can choose between written or computer-based formats. PSI Services, LLC currently administers the test. Immediate score results are provided if you take the computer-based version.
Exam formats, passing scores, and question counts are not specified in official sources. For candidate handbooks, always refer to the Board’s latest announcements or contact PSI directly using the Board’s Applicant Information page.
Exam Retake Policy
If you fail either part of the exam, you may retake that part within a six-month window. If you fail three times, additional education or a one-year wait applies before a fourth attempt. Each exam retake is subject to applicable exam fees.
Fees for Plumbing License Requirements in North Carolina
Every applicant for a plumbing contractor license in North Carolina pays several different fees. Application, exam, and annual license fees are all set by statute as maximums, although the Board may set the actual fee lower. The latest caps are:
Application Fee (as of 2026): Up to $125 unlimited, $100 intermediate, $75 limited license (see G.S. 87-10, verify at Board)
Exam Fee (as of 2026): Up to $100 (G.S. 87-10)
Annual License Fee (as of 2026): Up to $150 for plumbing/heating contractor; restrictive licenses not to exceed that. Fire sprinkler: up to $300 annually; initial app fee up to $75 (G.S.87-22)
Late Renewal Penalty (as of 2026): $25 (for renewals during January only) (G.S. 87-22)
If your license lapses for more than three years, reexamination is required. Bond and insurance fees are not specified by statute or board rule. Always check the official board fee schedule for current amounts before applying.
Renewal and Continuing Education for Plumbing License Requirements in North Carolina
All active contractors must renew their North Carolina plumbing license every year. Licenses expire on December 31. The deadline to renew is before the end of the year. Renewals processed in January are allowed but incur a $25 penalty. If you fail to renew for over three years, you must repeat the exam process before being reinstated (G.S. 87-22).
Continuing Education
The Board may require continuing education (CE) for plumbing contractors, but no specific CE hours are set by statute or published Board rules as of 2026. No approved provider or topic list is currently identified. Check the official board website for updates before your renewal deadline, as CE rules may change in upcoming years.
Consequences of Lapse
If you miss renewing your license, a $25 penalty applies for each renewal processed in January. Failing to renew within three years requires a new application, exam, and fee payment, as if you were a new applicant. Be sure to update your contact details so renewal reminders reach you on time.
Reciprocity
North Carolina does not provide full reciprocity for out-of-state plumbing licenses. However, the Board may grant a North Carolina license without examination if you hold a license from another state which is "substantially equivalent." This is a discretionary approval, not automatic. Additionally, there is a formal technical exam waiver agreement with South Carolina for certain technicians, and the Board recognizes verified work experience from Georgia, South Carolina, Tennessee, Virginia, and West Virginia for experience credit.
Always contact the Board to confirm whether your license or experience qualifies before applying. For updates or clarification on neighbor-state recognition, use the Applicant Information page.
