# How to Get an HVAC License in North Carolina: Heating Groups 1, 2 and 3

North Carolina HVAC contractors are licensed by the State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors. Heating Group 3 covers forced-air systems of 15 tons or less, Group 2 covers systems over 15 tons, and Group 1 covers steam and hot-water heat. Each needs 4,000 hours of experience and a PSI exam; licenses renew by December 31.

## Key takeaways

- The license you need depends on the system: Group 3 (15 tons or less), Group 2 (over 15 tons) or Group 1 (steam, vapor or hot water).
- Single-family homes are always Group 3, "regardless of size."
- Class II limits you to single-family detached dwellings; Class I covers all structures.
- Every contractor group needs 4,000 hours (2 years) of hands-on experience, up to half from approved coursework.
- Licenses expire December 31 each year. There's no CE requirement; it was eliminated at the end of 2012.

## Who licenses HVAC contractors in North Carolina?

The [State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors](https://nclicensing.org/), which licenses plumbing, heating, fuel piping and fire sprinkler contractors under G.S. Chapter 87, Article 2. Commercial refrigeration contracting has its own board, the [State Board of Refrigeration Examiners](https://www.refrigerationboard.org/), and anyone handling refrigerant also needs federal [EPA Section 608 certification](https://www.epa.gov/section608).

> **Last verified**
>
> Each requirement links the board page, rule or statute it came from, checked on 2026-10-24.

## What do Heating Group 1, 2 and 3 mean?

They're defined in [G.S. 87-21](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-21.html) by the kind and size of system:

- **Heating Group 1 (H-1):** "the heating system of a building, which requires the use of high or low pressure steam, vapor or hot water," with related piping, ducts and equipment ([G.S. 87-21](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-21.html)). Boilers and hydronics.
- **Heating Group 2 (H-2):** integral heating or cooling systems that circulate air "having a mechanical refrigeration capacity in excess of fifteen tons" ([G.S. 87-21](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-21.html)). Big commercial air systems.
- **Heating Group 3 (H-3):** direct heating or cooling systems with "a mechanical refrigeration capacity of 15 tons or less" ([G.S. 87-21](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-21.html)). This is where most residential and light commercial shops live, and "Systems installed in single-family residences are included under heating group number three, regardless of size."

On top of the group, the statute sets two classes: "Class I covering all plumbing, heating, and fire sprinkler systems for all structures" and "Class II covering plumbing and heating systems in single-family detached residential dwellings" ([G.S. 87-21](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-21.html)). The board's exam application offers Groups 1 and 3 in Class I or Class II and lists Group 2 without a class split ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)).

## What are the North Carolina HVAC license requirements?

**North Carolina heating licenses: experience, exam and fees**

| License | Experience | Exam | Exam fee | Annual license fee | CE |
| --- | --- | --- | --- | --- | --- |
| Heating Group 3 Contractor (Class I or II) | 4,000 hours ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)) | Yes, PSI ([FAQ](https://nclicensing.org/faq/)) | $100 per exam on the 2026 form; FAQ says $150 ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf); [FAQ](https://nclicensing.org/faq/)) | $150 ([21 NCAC 50 .1102](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf)) | None ([FAQ](https://nclicensing.org/faq/)) |
| Heating Group 2 Contractor | 4,000 hours ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)) | Yes, PSI ([FAQ](https://nclicensing.org/faq/)) | See [exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf) | $150 ([21 NCAC 50 .1102](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf)) | None ([FAQ](https://nclicensing.org/faq/)) |
| Heating Group 1 Contractor (Class I or II) | 4,000 hours ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)) | Yes, PSI ([FAQ](https://nclicensing.org/faq/)) | See [exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf) | $150 ([21 NCAC 50 .1102](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf)) | None ([FAQ](https://nclicensing.org/faq/)) |
| Plumbing, Heating & Fuel Piping Technician | Class I: 3,000 hours; Class II: 2,500 hours ([board](https://nclicensing.org/applicant-information/)) | See [board](https://nclicensing.org/applicant-information/) | See [board](https://nclicensing.org/applicant-information/) | $75 when listed under a licensed contractor ([21 NCAC 50 .1102](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf)) | None ([FAQ](https://nclicensing.org/faq/)) |

_Up to 2,000 of a contractor's 4,000 hours can come from academic or technical training ([board](https://nclicensing.org/applicant-information/)). An H3-I licensee gets 50% credit toward an H-2 application, and vice versa ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)). Verified 2026-10-24._

## How do you get an HVAC contractor license in North Carolina, step by step?

1. **Pick the group and class for your work** Residential changeouts and new homes: Heating Group 3, Class II if you'll only do single-family detached homes, Class I if you'll also do apartments or commercial. Boilers: Group 1. Large rooftop and air-handler systems over 15 tons: Group 2.
2. **Log 4,000 hours of hands-on experience** That's two years of full-time on-site work in installation, maintenance, service or repair of the systems you'll be licensed for. Community college or technical courses directly related to the license can count for up to half; each approved semester hour earns 66.66 hours of credit ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)).
3. **Buy the required books before you apply** By applying you certify you have the current NC State Building Code books, the board's Laws & Rules book and its *Business and Project Management for Contractors* book ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)).
4. **File the application with a background check** Include W-2s, 1099s or Social Security earnings records, a Castlebranch criminal background report and experience forms signed by the people who supervised you. Processing can take 4–6 weeks ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)).
5. **Test at PSI within 90 days of approval** All exams are computer-based and given by PSI Services ([FAQ](https://nclicensing.org/faq/)), daily at seven testing centers including Asheville, Charlotte, Raleigh and Wilmington. You must test within 90 days of your notification letter ([board](https://nclicensing.org/applicant-information/)).
6. **Pay the license fee and renew every December 31** The annual contractor fee is $150 ([21 NCAC 50 .1102](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf)). Licenses expire December 31 with no grace period, and late renewal adds $25 ([renewal](https://nclicensing.org/license-renewal/)).

## What happens if your North Carolina license lapses?

You must stop licensed work until it's renewed. The board can reinstate a license expired up to three years with the current fee, the unpaid prior years' fees and a processing fee; after three years you retake the exam ([renewal](https://nclicensing.org/license-renewal/)). Since there's no CE requirement, staying licensed is mostly a matter of paying on time.

## Can you transfer an HVAC license to North Carolina?

Possibly. G.S. 87-21(g) lets the board grant contractors licensed in other states "the same or equivalent classification without written examination" if their qualifications are substantially equivalent, after a full review of the other state's requirements ([exam application](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf)). The application also has a box for South Carolina technical exam waivers. There's no automatic list, so call the board before you apply.

## Starting your own HVAC company in North Carolina

- **Second qualifiers cost less:** a second or later qualifier on the same company license pays $75 a year instead of $150 ([21 NCAC 50 .1102](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf)).
- **Wiring:** if you'll do electrical connections yourself, NCBEEC offers an SP-PH special restricted class for plumbing, heating and air conditioning contractors; see [North Carolina electrical licensing](https://www.brix.so/licensing/electrician/north-carolina).
- **Taxes:** sales and use tax on equipment and entity filing are in [North Carolina contractor taxes and licensing](https://www.brix.so/taxes/north-carolina).
- **Business setup:** trucks, pricing, maintenance agreements and first customers are in [how to start an HVAC business](https://www.brix.so/start/hvac).

BRIX tracks licenses, insurance certificates and permits and flags renewals before they lapse, so the December 31 deadline doesn't stop your trucks on January 1. It also answers no-heat calls in a cold snap, books the job and sends the quote and invoice from one customer record.

- [Compliance and permit tracking](https://www.brix.so/#use-cases): Tracks licenses, safety documents and permits and flags renewals before they lapse.
- [AI receptionist](https://www.brix.so/features/ai-receptionist): Answers every call 24/7, qualifies the caller, books the job and texts back anyone it misses.
- [Quotes and estimates](https://www.brix.so/features/quotes-estimates): Builds accurate quotes on site and follows up on every open estimate.
- [Invoicing and payments](https://www.brix.so/features/invoicing-payments): Turns finished jobs into invoices and politely chases unpaid ones until the money is in your account.

## Frequently asked questions

### What HVAC license do I need in North Carolina?

For forced-air systems of 15 tons or less, including any single-family home system, you need a Heating Group 3 license. Systems over 15 tons need Heating Group 2, and steam or hot-water heating needs Heating Group 1. Class II limits you to single-family detached homes.

### How many hours do you need for an HVAC license in North Carolina?

Each heating contractor license requires 4,000 hours, about two years, of hands-on experience on the systems you'll be licensed for. Up to half can come from directly related college or technical coursework, with each semester hour worth 66.66 hours.

### Who administers the North Carolina HVAC exam?

PSI Services administers all of the board's exams by computer at seven testing centers, including Asheville, Charlotte, Raleigh and Wilmington. You must take the exam within 90 days of your approval letter.

### Do North Carolina HVAC contractors need continuing education?

No. The board's FAQ says the continuing education requirement for renewal was eliminated on December 31, 2012. You still must renew every year before December 31 and pay the annual license fee.

### How much does a North Carolina HVAC license cost?

The annual contractor license fee is $150 under 21 NCAC 50 .1102, or $75 for a second qualifier on the same company. The 2026 exam application lists $100 per exam, while the board's FAQ lists a $150 application fee, so confirm with the board.

### What is the difference between H-2 and H-3 in North Carolina?

Heating Group 2 covers air-circulating heating and cooling systems over 15 tons of refrigeration capacity. Heating Group 3 covers systems of 15 tons or less, plus every system in a single-family residence regardless of size.

## Related

- [HVAC License Requirements by State: Technician Rules, Contractor Classes and Size Limits](https://www.brix.so/licensing/hvac)
- [How to Get a Plumbing License in North Carolina: Contractor, Restricted and Technician Licenses](https://www.brix.so/licensing/plumbing/north-carolina)
- [How to Get an Electrical License in North Carolina: NCBEEC Classes, Hours and Exam](https://www.brix.so/licensing/electrician/north-carolina)
- [How to Get an HVAC License in Texas: TDLR Registration, Certification and Contractor Classes](https://www.brix.so/licensing/hvac/texas)
- [North Carolina Contractor Taxes and Licensing: RMI Sales Tax, Licenses and Income Tax](https://www.brix.so/taxes/north-carolina)
- [How to Start an HVAC Business in 2026 (Costs, Licenses and First Customers)](https://www.brix.so/start/hvac)
- [HVAC Software That Answers the Phone, Books the Tech and Keeps the Books](https://www.brix.so/for/hvac)
- [EPA 608 Certification: Who Needs It and How to Get It](https://www.brix.so/certifications/epa-608)
- [BTU Calculator](https://www.brix.so/tools/btu-calculator)
- [AC Tonnage Calculator](https://www.brix.so/tools/hvac-tonnage-calculator)

## Change log

- 2026-10-24: Page published. Heating groups, classes, experience, exam, fees, renewal and reciprocity verified against the board and G.S. 87-21. Exam fee discrepancy ($100 form vs $150 FAQ) noted.

## Sources

- [NC Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors — Home](https://nclicensing.org/) (checked 2026-10-24)
- [NC PHFS Board — Applicant information (experience, testing centers)](https://nclicensing.org/applicant-information/) (checked 2026-10-24)
- [NC PHFS Board — FAQ (PSI, CE eliminated, expiration)](https://nclicensing.org/faq/) (checked 2026-10-24)
- [NC PHFS Board — License renewal](https://nclicensing.org/license-renewal/) (checked 2026-10-24)
- [21 NCAC 50 .1102 — License fees](https://nclicensing.org/wp-content/uploads/2022/07/21-ncac-50-.1102.pdf) (checked 2026-10-24)
- [NC PHFS Board — Contractor exam application (2026-01)](https://nclicensing.org/wp-content/uploads/2026/02/PHFP-Exam-App-2026-01.pdf) (checked 2026-10-24)
- [N.C. Gen. Stat. 87-21 — Definitions and classes](https://www.ncleg.gov/enactedlegislation/statutes/html/bysection/chapter_87/gs_87-21.html) (checked 2026-10-24)
- [NC State Board of Refrigeration Examiners](https://www.refrigerationboard.org/) (checked 2026-10-24)
- [EPA — Section 608 technician certification](https://www.epa.gov/section608) (checked 2026-10-24)

Last verified against [NC State Board of Examiners of Plumbing, Heating and Fire Sprinkler Contractors](https://nclicensing.org/applicant-information/) on 2026-10-24.

Talk to BRIX: call or text (518) 588-1122, email eeharris2004@gmail.com, or book a 15-minute call at https://cal.com/ethanharris/15min.

---
Written by BRIX Editorial Team. Last updated 2026-10-24. General information, not tax, legal or financial advice.
Canonical: https://www.brix.so/licensing/hvac/north-carolina