Best HVAC Schools in Washington (2026)

You need an electrical specialty certificate of competency for HVAC work in Washington, which is not where most people look. The state has no standalone HVAC contractor licence or HVAC technician licence. What exists is an HVAC and refrigeration specialty coded 06A, issued through the electrical programme at the Department of Labor and Industries, plus a restricted version coded 06B.

There is a contractor registration too, and it does list HVAC and refrigeration as a specialty, but the rule defining that specialty says outright that it exists for the purpose of contractor registration only. No examination stands behind it. A registered HVAC contractor in Washington has posted a bond and shown insurance; they have not passed a test.

So the two layers do different jobs. The business holds a contractor registration, with a $15,000 bond for a specialty contractor and liability cover set by statute, and separately an electrical contractor licence with a $4,000 bond if it does the electrical work. The individual holds 06A or 06B. That certificate is the thing that says you know the trade.

Trade school can replace up to half the work hours for a Washington specialty certificate. The rule states that no more than 50 percent of the minimum work experience needed to qualify for specialty electrician certification is allowed for any training school program. For 06A that means a maximum of 2,000 of the 4,000 hours, and for 06B a maximum of 1,000 of the 2,000.

The program has to meet stated criteria. A two-year electrical training program must consist of 3,000 or more hours, of which a minimum of 2,400 must be student and instructor contact time on technical electrical instruction directly related to the specialty scope. Shorter programs have their contact hours proportionately reduced. The department may not allow credit for a program that accepts more than 1,000 hours transferred in from another school.

One limit catches people out and is worth planning around. Training school credit generally counts toward certification rather than toward becoming eligible to sit the examination, so school shortens the back half of the path more than the front. A registered two-year apprenticeship in the electrical construction trade qualifies outright, and military experience may cover up to half the minimum work experience.

HVAC techs in Washington make a median of $75,660 a year, nearly $15,000 above the national median of $61,010 and among the highest in the country. The Bureau of Labor Statistics counted 7,370 HVAC technician jobs in the state in its May 2025 wage survey.

The bottom 10 percent earn $48,340 or less, close to the national 25th percentile, and the top 10 percent earn $105,470 or more, past the national 90th percentile of $95,210. The middle half runs from $60,140 to $90,320. The certificate requirements described above are part of the explanation: an examined individual credential with 4,000 hours behind it and no local shortcuts restricts supply in a way that a registration alone would not. The survey reports pay rather than its causes and makes no forecast.