Top 10 HVAC Companies in Seattle, WA
The best HVAC companies in Seattle, WA for 2026 include Greenwood Heating and Home Services (4.9★), Evergreen Home Heating and Energy (4.8★), Glendale Heating & Air Conditioning (4.8★). All are licensed, insured, and highly rated for AC repair, heating service, and HVAC installation.
Greenwood Heating and Home Services
Evergreen Home Heating and Energy
Glendale Heating & Air Conditioning
AAA Heating & Air Conditioning
Go Green Heating AC & Electric
Seattle Heating & Cooling
GREENTOP Heating
Seattle Heating & Cooling
Brennan Heating, Air Conditioning, & Electric
2 Sons Plumbing, Sewer, Septic, Electric, Heating & Air
About These Listings
Provider details on this page come from public business information and each provider's own website. Inclusion here is not an endorsement, and the order shown is not a guarantee of quality. Before hiring, verify licensing, insurance, and pricing directly with the company — request written quotes and confirm credentials with your state or local licensing board.
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Frequently Asked Questions
How much does HVAC repair cost in Seattle, WA?
HVAC repair in Seattle typically costs $150-$450 for common issues like refrigerant recharge, thermostat replacement, or capacitor repair. AC compressor replacement runs $1,200-$2,800. Full system replacement costs $4,500-$12,000 depending on size and efficiency rating.
How often should I service my HVAC in Seattle?
HVAC professionals in Seattle recommend servicing twice a year — spring for AC and fall for heating. Regular maintenance prevents breakdowns during extreme weather and can extend your system's lifespan by 5-10 years.
Do Seattle HVAC companies offer emergency service?
Yes, most top-rated HVAC companies in Seattle offer 24/7 emergency service for no-heat, no-AC, and refrigerant leak situations. Response times are typically 60-90 minutes. Emergency premiums add $100-$250 to standard rates.
What size HVAC system do I need for my Seattle home?
Most homes in Seattle need 2.5 to 5 tons of cooling capacity. A rough guide: 1 ton per 400-600 sq ft depending on climate, insulation, and sun exposure. Always get a Manual J load calculation from a licensed HVAC contractor for accurate sizing.