HVAC contractor license cost: WA

Expect the HVAC contractor license cost in Washington to include L&I contractor registration ($150.20/2 years), a $30,000 or $15,000 bond, liability insurance, plus an electrical contractor license ($353.90/2 years) with a $4,000 bond and administrator exam/certificate fees. Permit/inspection fees are separate.

Requirements last verified: 2026-10-10

Requirement	Details
Licensing agency	Washington State Dept. of Labor & Industries (L&I): Contractor Registration Program and Electrical Program (contractor registration; electrical contractor).
Core business registration fee	$150.20 for issuance or renewal (valid 2 years); reinstatement $70.90; duplicate certificate $16.50 — per WAC 296‑200A‑900 as amended 7/1/2026 and L&I renewal guidance (WSR 26‑10‑060; L&I).
Contractor bond (business)	$30,000 general contractor or $15,000 specialty contractor (filed with L&I) (L&I).
Contractor liability insurance (business)	$200,000 public liability + $50,000 property damage, or $250,000 combined single limit; L&I must be certificate holder (L&I).
Electrical contractor license (HVAC electrical scope)	$353.90 initial or renewal per 24-month period; online renewal $306.20; reinstatement $71.50 — WAC 296‑46B‑909 (effective 7/1/2026) (WSR 26‑10‑060).
Electrical contractor bond	$4,000 bond or assignment of savings (filed on form F500‑019‑000) required by RCW 19.28.041 (RCW 19.28.041; F500‑019‑000).
Electrical administrator (business designee)	Department-administered exam fee $106.70; exam application $44.20; original administrator certificate $160.00; admin assignment/unassignment $53.00 — WAC 296‑46B‑909 (WSR 26‑10‑060).
Specialty electrician (individual) for HVAC	06A HVAC/Refrigeration or 06B Restricted required for installation wiring within scope; 06B requires 2,000 hours; 06A requires 4,000 hours (with up to 2,000 from 06B) and passing exam — WAC 296‑46B‑920 and 296‑46B‑942 (WAC 296‑46B‑920; WAC 296‑46B).
Minimum age	No specific age stated for contractor registration in RCW 18.27; individuals must be legally able to contract. Electrician trainee/certification rules apply to electrical work (see Chapter 19.28 RCW/WAC 296‑46B) (RCW 18.27).
Renewal cycle	Contractor registration: 2 years (WAC 296‑200A‑900). Electrical contractor license: 24 months (WAC 296‑46B‑909) (WSR 26‑10‑060).
Processing time	L&I notes mailed contractor registration applications take ~3–4 weeks after receipt to activate; card arrives ~2 weeks later (L&I).

How to calculate your total HVAC contractor license cost in Washington

1. Register your business as a contractor with L&I. Budget $150.20 for a 2‑year registration, plus the required bond and insurance. Use form F625‑001‑000; L&I details the steps and documents online (L&I contractor registration).
2. Secure the contractor bond and insurance. Choose $30,000 (general) or $15,000 (specialty) bond and carry either $200k/$50k split or $250k CSL liability coverage as specified by L&I (L&I).
3. Obtain your Electrical Contractor license for HVAC wiring. File the electrical contractor application (F500‑018‑000), post the $4,000 electrical/telecom bond (F500‑019‑000), and pay $353.90 for 24 months (F500‑018‑000; F500‑019‑000; WSR 26‑10‑060).
4. Designate an Electrical Administrator or Master. Plan for the admin exam/application and original certificate fees ($106.70 + $44.20 + $160.00). Assign/unassign fees are $53.00 as needed (WAC 296‑46B‑909).
5. Ensure installers hold the right specialty cards. Field installers who perform wiring must be certified as 06A or 06B specialty electricians (or be trainees under supervision) per WAC 296‑46B‑920/‑940; 06B requires 2,000 hours and 06A 4,000 hours (WAC 296‑46B‑920).
6. Budget for permits and inspections. Electrical permit/inspection fees vary by job and are purchased through L&I or the AHJ; Class B basic labels and other fees are set in WAC 296‑46B‑906 (WAC 296‑46B‑906).
7. Track renewals every 24 months. Contractor registration and electrical contractor licenses both renew on 2‑year cycles; online renewal discounts may apply for electrical contractors (WAC 296‑46B‑909; WAC 296‑200A‑900).

HVAC contractor license cost in Washington: what you’ll actually pay

Most Washington HVAC businesses carry both L&I contractor registration and an electrical contractor license so they can legally perform the HVAC electrical scope. Your fixed state fees typically include:

• $150.20 contractor registration (2 years) (WAC 296‑200A‑900).
• $353.90 electrical contractor license (2 years); $306.20 if renewing online (WAC 296‑46B‑909).
• $4,000 electrical contractor bond (RCW 19.28.041).
• $30,000 (general) or $15,000 (specialty) contractor bond (L&I).
• $200,000/$50,000 liability + property damage, or $250,000 CSL (L&I).
• $106.70 administrator exam (if taken with L&I), $44.20 exam application, $160.00 original admin certificate, $53.00 assignment/unassignment (WAC 296‑46B‑909).

Field labor performing electrical work must hold the 06A HVAC/Refrigeration or 06B Restricted electrician certificate (or be trainees under supervision). WAC 296‑46B‑920 sets the scopes and limitations; 06B is limited to 250V single‑phase/120A, while 06A has a broader scope (WAC 296‑46B‑920).

Washington HVAC electrical scopes: 06A vs 06B at a glance

06A HVAC/Refrigeration allows broader voltage/amperage and work inside HVAC equipment; it cannot install external line‑voltage controllers, panelboards, services/feeders, or raceway systems. 06B Restricted shares many in‑equipment tasks but is limited to 250V, single phase, 120A and has tighter raceway limits. See full text in WAC 296‑46B‑920 (WAC 296‑46B‑920).

How Washington’s license costs compare and stack with other credentials

Washington centralizes contractor registration and trades licensing at L&I, so your HVAC startup budget consolidates around state‑posted fees and bonds. If you’re benchmarking other Washington credentials, our breakdown of the Washington private investigator license cost shows a similar pattern of agency fees and surety bonds. For step‑by‑step credentialing strategy, see our guide to getting a Washington PI license and adapt the workflow to HVAC.

Frequently Asked Questions

Do I need both contractor registration and an electrical contractor license for HVAC in Washington?

Yes, most HVAC firms register as contractors with L&I and also hold an electrical contractor license so they can legally perform HVAC electrical work. That requires an assigned administrator/master and a separate $4,000 electrical/telecom bond. See L&I and WAC 296‑46B‑909/‑920 for details (L&I; WAC 296‑46B‑909; WAC 296‑46B‑920).

What are the current Washington contractor bond amounts?

For contractor registration, L&I requires a $30,000 bond for general contractors or $15,000 for specialty contractors. Separately, an electrical contractor license needs a $4,000 electrical/telecom bond under RCW 19.28.041. All bonds are filed with L&I (L&I; RCW 19.28.041).

How much are the electrical administrator exam and certificate?

If L&I administers the exam: $106.70 for the test, $44.20 for the examination application, and $160.00 for the original administrator certificate. Assigning/unassigning the administrator to your company costs $53.00 per filing (WAC 296‑46B‑909) (WSR 26‑10‑060).

What experience is required for 06A or 06B HVAC electrician certification?

WAC 296‑46B‑920/‑942 set minimum hours: 06B Restricted requires 2,000 hours; 06A HVAC/Refrigeration requires 4,000 hours (you may credit up to 2,000 hours from 06B toward 06A). Both require passing the appropriate specialty exam (WAC 296‑46B‑920; WAC 296‑46B).

How long does Washington contractor registration take to process?

L&I notes mailed contractor registration applications currently take about 3–4 weeks after receipt to activate. Your registration card typically arrives about two weeks after activation (L&I).

Need a line‑item budget and reminders for every filing? License Navigator maps each Washington HVAC step to the exact forms, fees, and renewal dates so you launch faster and stay compliant.