HVAC Contractor License in Hawaii: Requirements, Qualifier, Bond and Exams

Yes.

Hawaii licenses HVAC contracting businesses statewide through the Contractors License Board, as specialty contractor class C-52: Ventilating and air conditioning contractor.

There is no separate state license for individual HVAC technicians — the Board of Electricians and Plumbers licenses only electricians and plumbers — so the contractor license is the credential Hawaii HVAC work runs on.

Your technicians do not need contractor licenses of their own when they work as employees with wages as their sole compensation for a licensed C-52 contractor.

Hawaii's contractor licenses are issued by the Contractors License Board (DCCA Professional and Vocational Licensing Division).

HVAC contracting is specialty class C-52; the board's rules (HAR 16-77) describe the class's work as to fabricate, assemble, and install warm-air heating and air cooling systems.

Plumbing contracting is licensed separately by the same board as specialty class C-37, with sub-classes C-37a through C-37f, under the same contractor-licensing law (HRS chapter 444).

Hawaii's rules call the qualifier the Responsible Managing Employee (RME) — the role some other states call a qualifying agent or qualifying party.

A contracting company must employ a licensed individual designated as its RME: the RME must be at least 18, have 4 years of supervisory experience within the past 10 years, and pass the exam.

The RME is an employee of the company: the license requirement rests on employing that qualified person.

The Hawaii contractor exam has two parts: Part I covers business and law, and Part II covers trade knowledge in the classification — for C-52 applicants, the ventilating and air conditioning trade.

A grade of 75% is the minimum passing grade on each part.

Prometric administers the exams: the board approves your application first, then you register and pay exam fees to Prometric.

The board pages we read did not state current Prometric exam fees, so confirm those with the board or Prometric before you budget.

Hawaii sets minimum liability insurance for contractors: $100,000 bodily injury per person, $300,000 per occurrence and $50,000 property damage, plus workers' compensation.

Bonds work differently: the rules set no fixed bond amount.

As proof of financial integrity, the board may require the applicant to post a surety bond as a condition for licensure, and it can waive the bond after at least one year — so whether a bond is required of you rests with the board.

The application costs a $50 non-refundable fee.

The entity application form we read (October 2025) lists the license fee at $260 plus a recovery fund fee of $74 or $148; the research we read lists no renewal fee, so confirm current amounts — including renewal — with the board before you total your budget.

Licenses renew on or before September 30 of each even-numbered year.

Our reading of Hawaii's contractor rules (HAR 16-77) found no continuing-education hours for contractors or RMEs; that is a gap in our research, not a board statement, so confirm continuing education with the board before you renew.

Our research found no reciprocity provision in the Hawaii contractor rules we read — an absence from our reading, not a board statement — so plan to apply as an out-of-state applicant and pass both parts of the Hawaii exam.

Applicants may request board approval to take the licensing examination out of state.

Because agreements can change, ask the board whether any reciprocity now exists before you assume none does.

If your RME dies, leaves the company or becomes disabled, the clock starts: the entity must notify the board within 60 days, and submit an application to qualify a new RME — or place the license on inactive status — within 90 days, or the license is forfeited.

Treat that 90-day window as a standing hiring risk: start recruiting the next RME before your current one gives notice, not after.

Yes.

Hawaii's contractor-license law applies to any project whose aggregate contract price for labor and materials is above $1,500.

Projects at or below that amount are exempt — unless a building permit is required for the work, or the job was split into smaller contracts to evade the law.

The $1,500 exemption does not cover a job that requires a building permit, whatever its price, so check how the exemption treats your mix of small service work with the board.