How to Get an HVAC Contractor License in North Carolina

If you’re installing, replacing, or altering heating and cooling systems in North Carolina, you need a Heating Contractor license from the NC State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors (SBPHFSC). The Board governs heating, plumbing, fuel piping, and fire sprinkler contractors across the state under G.S. Chapter 87, Article 2.

North Carolina doesn’t issue an “HVAC license” by that name. The Board licenses Heating Contractors by group and class, and which combination you need depends on the type and size of systems you install and the structures you work in.

This guide covers licensing requirements for contractors who want to install, replace, or bid HVAC work in North Carolina: classifications, experience, exams, fees, and renewal.

Can You Work Without an HVAC Contractor License in North Carolina?

Without a license, you can’t legally install, replace, or alter heating and cooling systems, obtain permits, or bid on HVAC contracting work in North Carolina.

G.S. 87-21(c) explicitly covers the installation or replacement of condensing units, air handlers, gas furnaces, package units, boilers, water heaters, and heat exchangers. All of it requires a license.

The statute does carve out minor repairs and minor replacements on already installed systems, so long as the work doesn’t require any change in energy source, fuel type, or routing or sizing of venting or piping. The statute specifically names compressors, coils, contactors, motors, and capacitors as parts that fall under this exemption. Swapping a failed capacitor or a burned contactor doesn’t require a contractor license. Replacing the whole unit does.

Other exemptions: home inspectors, certified code-enforcement officials, and RESNET certified home energy raters are exempt to the extent they don’t claim to be or act as heating contractors. Retailers selling and arranging installation of single-family residential heating and cooling systems may also qualify for a narrow exemption under G.S. 87-21(j), provided a licensed contractor performs the actual installation and all statutory conditions are met.

Employees performing work under a licensed contractor’s supervision are generally covered by the contractor’s license. The license responsibility sits with the contractor of record.

Unless a statutory exemption applies, you need the appropriate heating contractor license before you bid or perform any work.

The License Classifications

North Carolina uses a two-axis system for heating contractor licenses: group number and class.

The three group numbers correspond to the type of system:

Heating Group 1 covers steam, vapor, and hot water boiler systems, including all piping, ducts, and mechanical equipment used for comfort heating. This is the boiler and hydronic systems license.

Heating Group 2 covers large commercial HVAC systems with mechanical refrigeration capacity exceeding 15 tons that circulate conditioned air. Systems installed in single-family residences fall under Group 3 regardless of size.

Heating Group 3 covers direct heating and cooling systems with mechanical refrigeration capacity of 15 tons or less. This includes heat pumps, mini-splits, gas furnaces, package units, and most ducted residential and light commercial systems. If you install HVAC in single-family homes, this is the group you need.

The two classes determine what structures you can work in, per G.S. 87-21(b)(1):

A Class I license covers heating systems in any structure, residential or commercial. A Class II license limits you to heating systems in single-family detached residential dwellings.

You can hold multiple group numbers under a single license. A contractor licensed for Group 3 Class I can work on any residential or light commercial HVAC system in any structure. A contractor who also holds Group 2 can handle large commercial systems as well.

Which North Carolina HVAC License Should You Get?

For most residential HVAC contractors, Heating Group 3, Class I is the standard starting point. It covers nearly all residential HVAC systems and most light commercial systems up to 15 tons.

If you’re exclusively focused on single-family detached homes, Class II gets you there with the same Group 3 qualification. But Class I doesn’t cost more to obtain and gives you broader scope from the start.

Contractors working on large commercial systems with refrigeration capacity over 15 tons also need Group 2. Boiler and hydronic heating work requires Group 1. If your business spans multiple system types, you’ll need to qualify for and pass exams in each applicable group.

Class I lets you work in multifamily and commercial structures without upgrading from Class II, provided the system remains within your Group 3 scope. Start there if there’s any chance your scope grows.

Experience Requirements

Applicants for a Heating Contractor license must have 4,000 hours (two years) of on-site, full-time experience in the installation, maintenance, service, or repair of heating or cooling systems, per nclicensing.org. Under G.S. 87-21(b)(3), the experience requirement may not exceed two years, and up to one-half may be in the form of academic or technical courses of study. That means up to 2,000 hours (45 quarter hours or 30 semester hours) can come from an HVAC or mechanical systems program at a vocational or community college.

The experience must be directly related to the category of license you’re seeking. Group 3 applicants need experience with heating and cooling systems in that classification. Experience in unrelated fields doesn’t count, and certificates in engineering or unrelated disciplines are explicitly excluded.

Current and former military personnel can use qualifying service experience. Spouses of military members may submit documentation of out-of-state licensure and sworn supervisor statements. Contact the Board at 919-875-3612 for specifics.

How Much Does a North Carolina HVAC Contractor License Cost?

Here’s what to budget:

The $100 examination fee is non-refundable whether you pass or not. Contractors qualifying for multiple group numbers pay the exam fee separately for each. The annual license fee is due when you activate your license and again at each renewal. Budget for reference books separately. The Board specifies exactly which editions are accepted for the exam.

Applying for the Exam

The Board requires a completed application form with notarized signatures where indicated, a criminal background check from the Board’s approved provider, the non-refundable $100 examination fee per classification, and proof of experience.

Applications can be mailed, delivered in person, or submitted online. The Board is currently averaging six weeks to process applications. If your application is missing anything, it goes on hold until you provide it. Get everything right the first time.

Once approved, you’ll receive notification by email or mail with instructions for scheduling through PSI. You then have 90 days from the notification date to take the examination, per G.S. 87-21(b)(6).

Can an LLC Get an HVAC Contractor License in North Carolina?

Yes. The license must be listed with the Board in the LLC’s business name, and each place of business must have at least one qualified individual regularly on active duty to supervise and direct the licensed work. If the company’s qualifier leaves, the business must stop bidding, permitting, contracting, and performing regulated work until another qualified licensee is added. Confirm entity-specific requirements directly with the Board at 919-875-3612.

If you want to qualify for multiple group numbers, you’ll need to pass a separate exam for each. The Board does allow you to apply for multiple exams together. Check the current Examination Listing and Information at nclicensing.org before applying.

The Exam

Exams are administered by PSI Services LLC, computer-based and offered daily at testing centers in Asheville, Charlotte, Winston-Salem, Raleigh, Fayetteville, Greenville, and Wilmington.

The exam is open book. You must bring all required reference materials to the test center. They’ll be checked before you’re allowed to sit. Check the current Book Reference List at nclicensing.org before ordering anything: the Board is specific about which editions are accepted. Contact the Board for time limits by group and classification.

Open book doesn’t mean easy. Success depends on knowing where information is located in the approved reference materials, not memorizing every code requirement. Prep time matters.

You’ll know your result immediately after completing the exam. If you fail, there’s a 90-day wait before you can retest. Failing applicants can attend an exam review session in Raleigh before retesting. A Re-Examination Application and fee are required to reschedule.

Activating Your License

Passing the exam is not the finish line. You must submit a completed License Activation Form and the license fee to the Board within 45 days of passing. Miss the 45-day deadline and you’ll have to retake the examination.

The annual heating contractor license fee is $150. Once your license is issued, it expires December 31 of that year, regardless of when you received it.

Under G.S. 87-21(e), your license number must appear on all proposals, contracts, and requests for permits. Cinderblock stores your license number once and automatically includes it on every estimate and invoice, so you don’t have to add it manually each time.

How Long Does It Take to Get an HVAC Contractor License in North Carolina?

Most applicants can expect the licensing process to take several weeks after submitting a complete application, plus time to schedule and pass the examination.

If you’re qualifying for multiple group numbers, each exam adds a step but can be applied for simultaneously. The Board does not publish a guaranteed end-to-end timeline. Allow extra time and make sure your application is complete before you submit it.

Renewing Your License

All NC heating contractor licenses expire on December 31, regardless of when they were issued. Renewal opens October 1. Don’t wait for a renewal notice. You’re responsible for renewing whether you receive one or not.

A late fee of $25 applies to renewals received after January 31. Let your license expire without renewing and you must stop performing, bidding, and offering heating contracting work until the license is reinstated. An inactive license can also delay permits and hold up active projects. An expired license can be reinstated within three years by paying all back fees and late fees. After three years, reinstatement requires retaking and passing the exam.

There is no continuing education requirement for renewal. Unlike some contractor license types in North Carolina, the Board does not mandate CE for heating contractor renewal.

Reciprocity and Out-of-State Licensees

North Carolina has no formal reciprocity agreements with any other state. Most out-of-state contractors should expect to complete the full licensing process. Three partial pathways exist:

• SC Technical Examination Waiver: SC-licensed HVAC contractors may waive the technical portion of the NC exam, but must still pass the NC business law exam.
• Neighbor State License Recognition Act: Current NC permanent residents who hold active licenses in Georgia, South Carolina, Tennessee, Virginia, or West Virginia may apply for equivalent NC licensure. Details are on the Board’s applicant information page.
• Board discretion: Under G.S. 87-21(g), the Board may grant a license without written examination to out-of-state licensees whose qualifications are substantially equivalent to NC holders of the same class. This is not automatic.

Contact the Board at 919-875-3612 to confirm which pathway, if any, applies to your situation.

Because licensing rules occasionally change, always verify current requirements directly with the Board before submitting your application.

This article is for general informational purposes only and does not constitute legal advice. Licensing requirements change. Verify current requirements directly with the NC State Board of Examiners of Plumbing, Heating, and Fire Sprinkler Contractors at nclicensing.org or 919-875-3612 before submitting an application.