Ohio Construction Industry Licensing Board · checked 2026-10-20
Ohio HVAC License Requirements
The OCILB licenses HVAC, refrigeration and hydronics contractors who perform commercial work, each as its own trade. HVAC Contractor (commercial): 5 years of experience at minimum, plus an exam.
- 1HVAC · HVAC Contractor (commercial) 5 years
License levels in Ohio
Ohio has one credential on this path: the HVAC Contractor (commercial). The source states the time in years.
| Level | Experience | Classroom | Time from start | Exam | Fees |
|---|---|---|---|---|---|
| HVAC HVAC Contractor (commercial) | 5 years | — | 5 years | Yes | Application $25; License $25 |
HVAC Contractor (commercial) (HVAC)
Five years as a tradesperson in HVAC immediately before applying, or an Ohio professional engineer registration with three years of business experience; pass the exams; $500,000 contractor liability insurance. Source: OCILB testing application.
Ohio also issues narrower classes on the same page: Refrigeration contractor and Hydronics contractor.
Exam
1 of the 1 level listed here requires an exam: HVAC Contractor (commercial). The source does not print a pass mark.
Fees, insurance and bond
- HVAC Contractor (commercial): application $25, license $25 ($50 together).
Insurance: Proof of at least $500,000 contractor liability insurance.
Reciprocity
The Ohio sources read for this trade name no reciprocity agreement and no route for out-of-state licensees.
How Ohio compares
Among the 8 states on this site that state a minimum time to the top hvac credential, Ohio ranks 7 of 8 from shortest (1 year) to longest (5 years). Georgia sets the same 5 years.
Same trade elsewhere: California · Texas · Florida · Georgia · North Carolina. All states side by side: HVAC license requirements by state.
Other trades in Ohio
- Electrician: Electrical Contractor (commercial): 5 years of experience at minimum, plus an exam.
- Plumber: Plumbing Contractor (commercial): 5 years of experience at minimum, plus an exam.
All covered trades on one page: Ohio trade licenses.
Background reading: From apprentice to master: how long each state takes · What the license fees add up to.
Questions
Who issues the hvac license in Ohio?
Ohio Construction Industry Licensing Board (Department of Commerce). The OCILB licenses HVAC, refrigeration and hydronics contractors who perform commercial work, each as its own trade.
How long does it take to qualify for the HVAC Contractor (commercial) in Ohio?
5 years by this site's count. Five years as a tradesperson in HVAC immediately before applying, or an Ohio professional engineer registration with three years of business experience; pass the exams; $500,000 contractor liability insurance.
Does Ohio have hvac license reciprocity?
The Ohio sources read name no reciprocity agreement for this trade.
What are the Ohio hvac license fees?
HVAC Contractor (commercial): application $25, license $25.
Sources and last checked
| What | Source | Checked |
|---|---|---|
| Issuing authority | Ohio Construction Industry Licensing Board (Department of Commerce) | 2026-10-20 |
| HVAC requirements | OCILB testing application | 2026-10-20 |
| Law cited | Ohio Rev. Code chapter 4740; Ohio Admin. Code 4101:16-1 to 4101:16-3 | 2026-10-20 |
This page summarises what the Ohio source said on 2026-10-20. It is general information, not legal advice; the board's own page and the statute are the authority and can change. Confirm with Ohio Construction Industry Licensing Board before applying. The free official route is the board itself: its page, application forms and staff answer eligibility questions.