How to get a HVAC license in Washington
The full Washington hvac licensing path — experience hours, required exam, fees, and where to apply. Verified 6/12/2026.
Career prep, not a license.
Prep for the Washington HVAC exam
HVAC 101 — Start Here (Free) — self-paced lessons, practice exam, certificate of completion.
Washington — No state HVAC license; Electrical 06A (HVAC/Refrigeration) certificate + EPA 608
Frequently asked questions
How do I get a hvac license in Washington?
You need 06a: 4,000 hrs hvac/refrigeration experience under a licensed electrician.. Then pass the WA 06A HVAC/Refrigeration Specialty Exam administered by PSI Services. Applications go through the Washington L&I + federal EPA.
What exam do I need to pass?
WA 06A HVAC/Refrigeration Specialty Exam — administered by PSI Services.
How much experience do I need?
06A: 4,000 hrs HVAC/Refrigeration experience under a licensed electrician.
What about fees, insurance, and continuing education?
WA licenses HVAC under the electrical code as Specialty 06A. Contractors register separately with L&I. Federal EPA 608 needed for refrigerant. 06A certificate $80.20/3yrs.
Other hvac licensing guides
Browse by state or trade.