Washington HVAC license requirements at a glance
- Issued by
- Washington State Department of Labor & Industries (L&I)
- License required
- Yes, specialty electrical license plus contractor registration
- Experience
- 4,000 supervised hours (≈2 yrs)
- Exam
- Washington 06A Specialty Electrician Exam
- State fees
- $107.60 exam application plus ~$65 written exam; certificate fee separate
- Renewal
- Every 2 years
- Avg. WA HVAC salary
- $68,540/yr (2025)
- Federal
- EPA Section 608 required
How do you get an HVAC license in Washington?
- Enroll as an electrical trainee with L&I (about $46.80), you can start working and earning immediately under supervision
- Complete 4000 supervised hours in the HVAC/refrigeration (06A) specialty plus 48 hours of approved classroom instruction per 2-year period
- Pass the 06A specialty electrician exam (open-book code sections; administered by PSI)
- Obtain EPA Section 608 certification for refrigerant handling (federal requirement)
- Register as a contractor with L&I if you plan to bid your own work (bond and insurance required)
What license tiers does Washington offer?
Washington actually offers two HVAC paths. The full 06A license (4,000 hours, 48 classroom hours) covers all HVAC/refrigeration work. The lesser-known 06B Restricted license covers smaller equipment and requires only 2,000 supervised hours and 24 classroom hours, a one-year route into licensed work that most guides never mention. Many techs start with 06B and upgrade to 06A as hours accumulate.
What is the Washington HVAC exam like?
The 06A exam is administered by PSI in two parts, National Electrical Code theory and Washington electrical laws and rules, with open-book access to designated code sections. The exam application fee is $107.60, and L&I's 6.51% program fee increase took effect July 1, 2026, so verify current amounts on the L&I fee schedule the week you apply.
How much does an HVAC license cost in Washington?
State-side costs run roughly $220–$280: trainee registration (~$45–47), the $107.60 exam application, about $65 for the written exam, and the certificate fee. Note: L&I adopted a 6.51% electrical-program fee increase effective July 1, 2026, so published figures across the web are slightly stale, confirm the live fee schedule at lni.wa.gov before paying. Training ranges from free paid apprenticeship to $3,000–$15,000 at private programs; most techs earn while they learn.
How long does it take to become an HVAC tech in Washington?
The clock is the 4,000 supervised hours, roughly 2 years of full-time paid work. Most Washington HVAC techs qualify in about 2 years through paid on-the-job training under a certified electrician plus supplemental classroom hours.
Is HVAC a good career in Washington?
Washington average from state wage data (2025 estimate). National median from the U.S. Bureau of Labor Statistics (2023). Verify current figures with BLS.
What does it take to start your own HVAC business in Washington?
Going independent in Washington means full contractor registration with L&I: a Unified Business Identifier (UBI) from the Department of Revenue, a $15,000 surety bond for specialty contractors, general liability insurance, and a registration fee in the $125–$150 range. Skipping registration and bidding work on a bare 06A certificate is one of the most-cited violations L&I enforces.
What most guides get wrong about Washington
Washington runs HVAC licensing through its electrical program, a structure only shared by a handful of states. Budget for the 48 classroom hours per renewal cycle; techs who skip them lose certification and have to re-test.
Washington HVAC license: frequently asked questions
Do I need a license to do HVAC work in Washington?
Yes, but it works differently than most states. Washington regulates HVAC through the electrical licensing system. Most residential and commercial HVAC service work requires an 06A specialty electrician certificate, and running your own HVAC business also requires state contractor registration with a bond and insurance.
How long does it take to become an HVAC tech in Washington?
About two years for most people. The 06A specialty requires 4,000 supervised on-the-job hours, which works out to roughly 24 months of full-time work. You earn a paycheck the entire time as a registered trainee.
How much does HVAC licensing cost in Washington?
Roughly $240 to get fully licensed: a $46.80 trainee registration, a $74.90 exam fee, and a $117.90 certificate fee. Training program costs vary, apprenticeships are typically free while private programs run $3,000–$15,000.
Can I do HVAC work in Washington with just EPA 608?
No. EPA 608 covers refrigerant handling under federal law, but Washington additionally requires the state 06A specialty license for the electrical side of HVAC work, which is most of the job.
HVAC licensing in every state
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