Classification C-52 covers fabricating, assembling and installing warm-air heating and air cooling systems, complete ventilating and air conditioning systems including piping, non-electrical controls, building automation and energy management, plus heat pumps related to the air conditioning system and the insulation within those systems. C-40 refrigeration covers equipment controlling air temperature below fifty degrees Fahrenheit and walk-in refrigerator boxes.
HRS ch. 444 also polices refrigerant handling directly: the Board fines licensees whose employees service units or release CFCs in violation of HRS §444-17(18)–(20), with each unit serviced and each release a separate offense. Federal EPA Section 608 certification applies to technicians handling regulated refrigerants.
The state sets the license floor; the county or city permit office controls filing, inspections, and local rules wherever the job site sits.
Contractor licensing is exclusively state — the Hawaii Supreme Court held Honolulu's own electrical contractor licensing ordinance invalid because HRS ch. 444 is the exclusive legislation for contractors (52 Haw. 550, 1971, noted under HRS §444-1). The four counties (City and County of Honolulu, Hawaii, Maui, Kauai) issue building permits and inspect; every permit applicant must list the license numbers of the contractor and all specialty contractors, which the county checks against the Board's list (HRS §444-9.1). Any job needing a permit loses the $1,500 exemption.
The local offices section below names the exact permit desk for every Hawaii county on file.
Each row names the issuing authority, cost, timeline, citation, and status behind the requirement — verified against the official source.
Published fees from the issuing authorities, as of October 2026. Local permit fees vary by project and jurisdiction — the basis is stated where a flat number does not exist.
Each unit serviced in violation of §444-17(18)–(19) and each CFC release under §444-17(20) is a separate offense: $75, then $150, then $300–$1,000.
C-52 covers heat pumps tied to the air conditioning system; heat pump water heaters are listed in the C-37 plumbing scope.
Hawaii licenses specialty trades most states leave alone — painting, flooring, landscaping. The same $50 application, Business & Law exam, insurance minimums and fund fees apply whether you hang drywall or wire panels.
A practical sequence for a new HVAC contractor in Hawaii. Actual agency processing times are noted in the ledger above.
Each item names the issuing authority, cycle, and citation.
Statutory consequences with their citations — not estimates, not “commonly cited” guesses.
Acting, assuming to act, or advertising as a contractor without a license; on a third or later offense, when a separate citation or suit exists, tools and materials used are subject to forfeiture.
A licensee who contracts outside the scope of the classification held.
A person who contracted without first obtaining the required license cannot recover for work or materials in a civil action.
Inside city limits, the city office listed here issues the permit; the county office serves unincorporated areas. Every office links to its official page.
| County · City | Permit office | Portal |
|---|---|---|
| Honolulu County Honolulu (consolidated gov.) | City and County of Honolulu Department of Planning and Permitting (DPP) ↗ | HNL Build ↗ |
Every fact in this file was checked against these official sources on October 2026.
Pending verification: Exact text of HRS §444-17(18)–(20) (refrigerant recovery grounds referenced by §444-23(d); §444-17 itself was not retrieved) · Whether the electrical connection of HVAC equipment must be performed by a ch. 448E-licensed electrician under a C-13 contractor · The Contractors License Board FAQ (dated 7/9/18, still linked from the Board page) states the handyman exemption as $1,000; HRS §444-2(4) as amended by Act 283 (2019) sets $1,500 — the statute is used here · Current contractor license, renewal and fund fees are taken from form CT-36 (rev. 10/25) and the Board FAQ; the fee schedule in HAR ch. 16-53 itself was not retrieved, and the $353 entity / $208 RME biennial renewal amounts come only from the 2018-dated FAQ · Current Prometric exam fees (the 2018 Board FAQ lists $75 per part; form CT-36 directs candidates to pay the testing agency directly without stating an amount) · How the Board decides whether to require a bond under HRS §444-16.5 for a given applicant (the statute sets only a $5,000 floor and directs the Board to weigh financial condition and experience)
General information, not legal advice. Always confirm requirements, deadlines, and forms with the issuing authority before filing or contracting.
Store licenses, permits, policies, and renewal dates in one place.