Hawaii HVAC license
Hawaii HVAC contractors need a C-52 Ventilating and air conditioning contractor license. (source: Requirements for License, Sole Proprietor (opens in a new tab))
Check a license on the CLB website (official site, opens in a new tab)
How: Request a license verification from the Professional and Vocational Licensing Division, and check the classification fits the job. (source: Hawaii Contractors License Board (opens in a new tab))
Checked against official Hawaii Contractors License Board sources. See sources.
1. Who needs a license
Contractors working under HRS 444 need a Contractors License Board license in the right classification. (source: Hawaii Contractors License Board (opens in a new tab))
2. HVAC license classes
| Class | Name | Covers |
|---|---|---|
| C-52 | Ventilating and air conditioning contractor | Specialty (source: Requirements for License, Sole Proprietor (opens in a new tab)) |
3. Fees, exam, bond and insurance
Fees
| Fee | Amount |
|---|---|
| Application Non-refundable. | $50 (source: Requirements for License, Sole Proprietor (opens in a new tab)) |
| Sole proprietor license Plus a $150 recovery fund fee. | $260 (source: Requirements for License, Sole Proprietor (opens in a new tab)) |
| Renewal (entity or sole proprietor) $208 for an RME. | $338 (source: Hawaii Contractors License Board (opens in a new tab)) |
Fees are set by the board and can change. Check the official fee page before you pay.
Experience and steps
- Experience Show 4 years of supervisory experience in the classification within the last 10 years, with at least 3 notarized certificates and a project list. (source: Requirements for License, Sole Proprietor (opens in a new tab))
- Exam Pass the Prometric exam after Board approval. (source: Requirements for License, Sole Proprietor (opens in a new tab))
Exam
An exam is required. Exams are run by Prometric. (source: Requirements for License, Sole Proprietor (opens in a new tab))
- Written exam, after Board approval (source: Requirements for License, Sole Proprietor (opens in a new tab))
Bond
We're still verifying this, check the official board: CLB website (opens in a new tab).
Insurance
- Workers' comp: Required (source: Requirements for License, Sole Proprietor (opens in a new tab))
- General liability: Bodily injury $100,000 per person, $300,000 per occurrence; property damage $50,000 (source: Requirements for License, Sole Proprietor (opens in a new tab))
Renewal
- Renew every 2 years. (source: Hawaii Contractors License Board (opens in a new tab))
- Renewal fee: $338. (source: Hawaii Contractors License Board (opens in a new tab))
Renew by 30 Sept of even years, with a tax clearance less than 6 months old. You can restore within 60 days. (source: Hawaii Contractors License Board (opens in a new tab))
4. How to look up a contractor
Check a license on the CLB website (official site, opens in a new tab)
How: Request a license verification from the Professional and Vocational Licensing Division, and check the classification fits the job. (source: Hawaii Contractors License Board (opens in a new tab))
5. Reciprocity (license transfer)
We're still verifying this, check the official board: CLB website (opens in a new tab).
6. Red flags when hiring
- A license not renewed after 30 Sept of an even year. (source: Hawaii Contractors License Board (opens in a new tab))
- A classification that doesn't match the job. (source: Requirements for License, Sole Proprietor (opens in a new tab))
7. How to complain
We're still verifying this, check the official board: CLB website (opens in a new tab).
8. Sources and last verified
Last verified: . Next check due: . Every fact on this page links to one of these official pages. How we verify.
- Hawaii Contractors License Board (opens in a new tab) (checked Oct 24, 2026)
- Requirements for License, Sole Proprietor (opens in a new tab) (checked Oct 24, 2026)
Spot something out of date? Email [email protected].