HVAC Contractor Permit Requirements in Honolulu, HI

Complete permit and license guide for starting a hvac contractor in Honolulu, Honolulu County, Hawaii.

$400 -- $1500 4–10 weeks 6 requirements

Not legal advice. Requirements may change — always verify with your local government authority before applying. Last verified: .

Honolulu / Honolulu County Requirements

3 requirements
1

Hawaii Contractors License Board — HVAC Contractor License (C-52)

HVAC contractors in Hawaii must hold a C-52 Air Conditioning, Ventilating, and Heating Contractor License from the Hawaii Contractors License Board. EPA Section 608 certification required for refrigerants.

$250–$400 (initial)4–8 weeks
Official government source
2

City and County of Honolulu Department of Budget and Fiscal Services — Business License

Honolulu requires a City business registration and applicable permits from the Department of Planning and Permitting in addition to the state GET license. This license must be renewed annually and displayed at your place of business.

$50–$500/year depending on business type and gross revenues1–3 weeks
Official government source
3

Honolulu County / Honolulu Mechanical Permit (per project)

A mechanical permit must be obtained from the local building department for each HVAC installation or major repair. Inspections are required upon completion.

$50–$300 per project1–5 business days
Official government source

Hawaii State Requirements

2 requirements
1

Hawaii Department of Taxation — General Excise Tax License

Hawaii does not have a traditional sales tax but requires all businesses to pay a General Excise Tax (GET) on gross income from business activities. The GET rate is 4% (4.5% in Honolulu). All businesses must register for a GET license with the Hawaii Department of Taxation.

$20 (one-time registration fee)2–4 weeks (by mail) or immediate (in-person)
Official government source
2

EPA Section 608 Certification (for refrigerants)

Technicians who purchase, recover, or handle refrigerants must hold EPA Section 608 certification. Required by federal law regardless of state.

$20–$100 (exam)1–2 days
Official government source

Federal Requirements

1 requirement
1

EIN (Employer Identification Number)

Required if you have employees or operate as an LLC or corporation. Free from the IRS.

FreeImmediate (online application)
Official government source

Official Sources

Related Guides