HVAC contractors in
Seattle, Washington.
A public directory of licensed hvac contractors serving greater Seattle. Market data, licensing requirements, and cost benchmarks — updated continuously from public sources.
Common Job Costs
Licensing Requirements
Licensing Requirements
Washington requires HVAC/R Technician License through Department of Labor & Industries. Must pass written examination covering refrigeration principles, electrical systems, and safety. Requires 4000 hours work experience or completion of approved training program. License renewal every 3 years with 24 hours continuing education.
Permit Requirements
Seattle requires mechanical permits for HVAC installations, replacements, and major repairs. Permits required for ductwork modifications, furnace/heat pump installations, and any work affecting building envelope. Fee ranges $150-500 based on project scope.
Inspection Schedule
Initial rough-in inspection before concealing work, final inspection after installation completion. Heat pump installations require electrical inspection. Commercial projects require additional inspections at 50% completion.
Insurance Minimums
Washington requires minimum $50,000 general liability insurance for HVAC contractors. Workers compensation required for employees. Seattle may require higher limits for larger commercial projects.
How to Get Licensed
Meet experience requirements
Complete 4000 hours of documented HVAC work experience under licensed supervision, or finish an approved HVAC training program from accredited institution.
Submit application
File application with Washington Department of Labor & Industries including proof of experience, training certificates, and application fee of $75.
Pass written examination
Schedule and pass the HVAC/R technician exam covering refrigeration principles, electrical systems, safety codes, and Washington regulations. Exam fee is $68.
Obtain insurance
Secure minimum $50,000 general liability insurance and workers compensation coverage if employing others.
Receive license and maintain
Upon approval, receive Washington HVAC/R license valid for 3 years. Complete 24 hours continuing education for renewal every 3 years.
About This Market
Seattle's HVAC market runs hot on heat pump installations and energy efficiency upgrades, driven by the city's climate goals and utility rebates. With 2140 licensed establishments statewide and median wages at $35.58/hour, competition is steady but work stays consistent year-round. Residential dominates, but commercial retrofits and new construction keep the big players busy. Costs run 10-15% higher than state average due to Seattle's permitting requirements and higher labor costs.
To work Seattle, get your Washington HVAC/R license first - no shortcuts on the 4000-hour experience requirement or the exam. Know Seattle's energy codes inside and out, especially heat pump requirements for new construction. Build relationships with permit expeditors because Seattle's permitting process will slow you down if you're not prepared. Stock up before October - heating season hits fast and parts get scarce. Focus on energy efficiency certifications and heat pump expertise - that's where the premium work is.
- Median hourly wageBureau of Labor Statistics
- Licensed establishments countUS Census Bureau
- License requirementsWashington Department of Labor & Industries
- Permit requirementsSeattle Department of Construction and Inspections
- Insurance minimumsWashington State licensing board
Frequently Asked Questions
What license do I need to work as an HVAC contractor in Seattle?
You need a Washington State HVAC/R Technician License through the Department of Labor & Industries. This requires 4000 hours of experience or approved training, plus passing a written exam covering refrigeration, electrical systems, and safety protocols.
How much do HVAC contractors make in Seattle?
According to BLS data, HVAC technicians in Washington earn a median wage of $35.58 per hour or $74,006 annually. Seattle rates typically run 10-20% higher due to cost of living and demand.
Do I need permits for HVAC work in Seattle?
Yes, Seattle requires mechanical permits for most HVAC installations, replacements, and major repairs through the Seattle Department of Construction and Inspections. Permits range from $150-500 depending on project scope.
When is peak season for HVAC work in Seattle?
Peak demand runs October through February for heating system work. Heat pump installations stay busy year-round due to Seattle's push for electric heating and available utility rebates.
How long does it take to get HVAC permits approved in Seattle?
Standard mechanical permits typically take 2-3 weeks for approval through Seattle DCI. Complex projects or those requiring plan review can take 4-6 weeks. Expedited review available for additional fees.
HVAC contractors in Seattle
No contractors listed yet.
Run your hvac business on The Forge.
Get listed on The Board for free. Manage leads, quotes, jobs, and follow-ups in one place. Built for trades, used by thousands of operators nationwide.